Re: [CentOS] Looking for a life-save LVM Guru
OK It's extremely rude to cross post the same question across multiple lists like this at exactly the same time, and without at least showing the cross posting. I just replied to the one on Fedora users before I saw this post. This sort of thing wastes people's time. Pick one list based on the best case chance for response and give it 24 hours. Chris Murphy ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] disk space trouble on ec2 instance
On Sat, 28 Feb 2015 01:46:15 -0500 Tim Dunphy wrote: /dev/sda1 9.9G 9.3G 49M 100% / 49mb out of 9.9gb is less than one-half of one percent, so the df command is probably rounding that up to 100% instead of showing you 99.51%. Whatever is checking for free disk space is likely doing the same thing. -- MELVILLE THEATRE ~ Real D 3D Digital Cinema ~ www.melvilletheatre.com ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] Looking for a life-save LVM Guru
https://lists.fedoraproject.org/pipermail/users/2015-February/458923.html I don't see how the VG metadata is restored with any of the commands suggested thus far. I think that's vgcfgrestore. Otherwise I'd think that LVM has no idea how to do the LE to PE mapping. In any case, this sounds like a data scraping operation to me. XFS might be a bit more tolerant because AG's are distributed across all 4 PV's in this case, and each AG keeps its own metadata. But I still don't think the filesystem will be mountable, even read only. Maybe testdisk can deal with it, and if not then debugfs -c rdump might be able to get some of the directories. But for sure the LV has to be active. And I expect modifications (resizing anything, fscking) astronomically increase the chance of total data loss. If it's XFS xfs_db itself is going to take longer to read and understand than just restoring from backup (XFS has dense capabilities). On the other hand, Btrfs can handle this situation somewhat well so long as the fs metadata is raid1, which is the mkfs default for multiple devices. It will permit degraded mounting in such a case so recovery is straightforward. Missing files are recorded in dmesg. Chris Murphy ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
[CentOS] disk space trouble on ec2 instance
Hey all, Ok, so I've been having some trouble for a while with an EC2 instance running CentOS 5.11 with a disk volume reporting 100% usage. Root is on an EBS volume. So I've tried the whole 'du -sk | sort -nr | head -10' routine all around this volume getting rid of files. At first I was getting rid of about 50MB of files. Yet the volume remains at 100% capacity. Thinking that maybe the OS was just not letting go of the inodes for the files on the disk, I attempted rebooting the instance. After logging in again I did a df -h / on the root volume. And look! Still at 100% capcity used. Grrr Ok so I then did a du -h on the /var/www directory, which was mounted on the root volume. And saw that it was gobbling up 190MB of disk space. So then I reasoned that I could create an EBS volume, rsync the data there, blow away the contents of /var/www/* and then mount the EBS volume on the /var/www directory. So I went through that exercise and lo and behold. Still at 100% capacity. Rebooted the instance again. Logged in and.. still at 100% capacity. Here's how the volumes are looking now. [root@ops:~] #df -h FilesystemSize Used Avail Use% Mounted on /dev/sda1 9.9G 9.3G 49M 100% / none 312M 0 312M 0% /dev/shm /dev/sdi 148G 116G 25G 83% /backup/tapes /dev/sdh 9.9G 385M 9.0G 5% /backup/tapes/bacula-restores /dev/sdf 9.9G 2.1G 7.4G 22% /var/lib/mysql fuse 256T 0 256T 0% /backup/mysql fuse 256T 0 256T 0% /backup/svn /dev/sdg 197G 377M 187G 1% /var/www There are some really important functions I need this volume to perform that it simply can't because the root volume is at 100% capacity. Like the fact that neither mysql nor my backup program - bacula will even think of starting up and functioning! I'm at a loss to explain how I can delete 190MB worth of data, reboot the instance and still be at 100% usage. I'm at my wits end over this. Can someone please offer some advice on how to solve this problem? Thanks Tim -- GPG me!! gpg --keyserver pool.sks-keyservers.net --recv-keys F186197B ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] Looking for a life-save LVM Guru
On Fri, Feb 27, 2015 at 8:24 PM, John R Pierce pie...@hogranch.com wrote: On 2/27/2015 4:52 PM, Khemara Lyn wrote: I understand; I tried it in the hope that, I could activate the LV again with a new PV replacing the damaged one. But still I could not activate it. What is the right way to recover the remaining PVs left? take a filing cabinet packed full of 10s of 1000s of files of 100s of pages each, with the index cards interleaved in the files, and remove 1/4th of the pages in the folders, including some of the indexes... and toss everything else on the floor...this is what you have. 3 out of 4 pages, semi-randomly with no idea whats what. a LV built from PV's that are just simple drives is something like RAID0, which isn't RAID at all, as there's no redundancy, its AID-0. If the LE to PE relationship is exactly linear, as in, the PV, VG, LV were all made at the same time, it's not entirely hopeless. There will be some superblocks intact so scraping is possible. I just tried this with a 4 disk LV and XFS. I removed the 3rd drive. I was able to activate the LV using: vgchange -a y --activationmode partial I was able to mount -o ro but I do get errors in dmesg: [ 1594.835766] XFS (dm-1): Mounting V4 Filesystem [ 1594.884172] XFS (dm-1): Ending clean mount [ 1602.753606] XFS (dm-1): metadata I/O error: block 0x5d780040 (xfs_trans_read_buf_map) error 5 numblks 16 [ 1602.753623] XFS (dm-1): xfs_imap_to_bp: xfs_trans_read_buf() returned error -5. # ls -l ls: cannot access 4: Input/output error total 0 drwxr-xr-x. 3 root root 16 Feb 27 20:40 1 drwxr-xr-x. 3 root root 16 Feb 27 20:43 2 drwxr-xr-x. 3 root root 16 Feb 27 20:47 3 ??? ? ?? ?? 4 # cp -a 1/ /mnt/btrfs cp: cannot stat ‘1/usr/include’: Input/output error cp: cannot stat ‘1/usr/lib/alsa/init’: Input/output error cp: cannot stat ‘1/usr/lib/cups’: Input/output error cp: cannot stat ‘1/usr/lib/debug’: Input/output error [...] And now in dmesg, thousands of [ 1663.722490] XFS (dm-1): metadata I/O error: block 0x425f96d0 (xfs_trans_read_buf_map) error 5 numblks 8 Out of what should have been 3.5GB of data in 1/, I was able to get 452MB. That's not so bad for just a normal mount and copy. I am in fact shocked the file system mounts, and stays mounted. Yay XFS. -- Chris Murphy ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] Looking for a life-save LVM Guru
OK so ext4 this time, with new disk images. I notice at mkfs.ext4 that each virtual disk goes from 2MB to 130MB-150MB each. That's a lot of fs metadata, and it's fairly evenly distributed across each drive. Copied 3.5GB to the volume. Unmount. Poweroff. Killed 3rd of 4. Boot. Mounts fine. No errors. HUH surprising. As soon as I use ls though: [ 182.461819] EXT4-fs error (device dm-1): __ext4_get_inode_loc:3806: inode #43384833: block 173539360: comm ls: unable to read itable block # cp -a usr /mnt/btrfs cp: cannot stat ‘usr’: Input/output error [ 214.411859] EXT4-fs error (device dm-1): __ext4_get_inode_loc:3806: inode #43384833: block 173539360: comm ls: unable to read itable block [ 221.067689] EXT4-fs error (device dm-1): __ext4_get_inode_loc:3806: inode #43384833: block 173539360: comm cp: unable to read itable block I can't get anything off the drive. And what I have here are ideal conditions because it's a brand new clean file system, no fragmentation, nothing about the LVM volume has been modified, no fsck done. So nothing is corrupt. It's just missing a 1/4 hunk of its PE's. I'd say an older production use fs has zero chance of recovery via mounting. So this is now a scraping operation with ext4. Chris Murphy ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] disk space trouble on ec2 instance
On 2/27/2015 10:46 PM, Tim Dunphy wrote: I'm at a loss to explain how I can delete 190MB worth of data, reboot the instance and still be at 100% usage. 190MB is less than one percent of 9.9GB aka 9900MB BTW, for cases like this, I'd suggest using df -k or -m rather than -h to get more precise and consistent values. also note, Unix (and Linux) file systems usually have a reserved freespace, only root can write that last bit. most modern file systems suffer from severe fragmentation if you completely fill them. ext*fs, you adjust this with `tune2fs -m 1 /dev/sdXX`. XFS treats these reserved blocks as inviolable, so they don't show up as freespace, they can be changed with xfs_io but should be modified at your own risk. -- john r pierce 37N 122W somewhere on the middle of the left coast ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] Looking for a life-save LVM Guru
On 2/27/2015 4:52 PM, Khemara Lyn wrote: I understand; I tried it in the hope that, I could activate the LV again with a new PV replacing the damaged one. But still I could not activate it. What is the right way to recover the remaining PVs left? take a filing cabinet packed full of 10s of 1000s of files of 100s of pages each, with the index cards interleaved in the files, and remove 1/4th of the pages in the folders, including some of the indexes... and toss everything else on the floor...this is what you have. 3 out of 4 pages, semi-randomly with no idea whats what. a LV built from PV's that are just simple drives is something like RAID0, which isn't RAID at all, as there's no redundancy, its AID-0. -- john r pierce 37N 122W somewhere on the middle of the left coast ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] Looking for a life-save LVM Guru
On Fri, Feb 27, 2015 at 9:00 PM, Marko Vojinovic vvma...@gmail.com wrote: And this is why I don't like LVM to begin with. If one of the drives dies, you're screwed not only for the data on that drive, but even for data on remaining healthy drives. It has its uses, just like RAID0 has uses. But yes, as the number of drives in the pool increases, the risk of catastrophic failure increases. So you have to bet on consistent backups and be OK with any intervening dataloss. If not, well, use RAID1+ or use a distributed-replication cluster like GlusterFS or Ceph. Hardware fails, and storing data without a backup is just simply a disaster waiting to happen. I agree. I kind get a wee bit aggressive and say, if you don't have backups the data is by (your own) definition not important. Anyway, changing the underlying storage as little as possible gives the best chance of success. linux-raid@ list is full of raid5/6 implosions due to people panicking, reading a bunch of stuff, not identifying their actual problem, and just start typing a bunch of commands and end up with user induced data loss. In the case of this thread, I'd say the best chance for success is to not remove or replace the dead PV, but to do a partial activation. # vgchange -a y --activationmode partial And then ext4 it's a scrape operation with debugfs -c. And for XFS looks like some amount of data is possibly recoverable with just an ro mount. I didn't try any scrape operation, too tedious to test. -- Chris Murphy ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] Looking for a life-save LVM Guru
On Fri, 27 Feb 2015 19:24:57 -0800 John R Pierce pie...@hogranch.com wrote: On 2/27/2015 4:52 PM, Khemara Lyn wrote: What is the right way to recover the remaining PVs left? take a filing cabinet packed full of 10s of 1000s of files of 100s of pages each, with the index cards interleaved in the files, and remove 1/4th of the pages in the folders, including some of the indexes... and toss everything else on the floor...this is what you have. 3 out of 4 pages, semi-randomly with no idea whats what. And this is why I don't like LVM to begin with. If one of the drives dies, you're screwed not only for the data on that drive, but even for data on remaining healthy drives. I never really saw the point of LVM. Storing data on plain physical partitions, having an intelligent directory structure and a few wise well-placed symlinks across the drives can go a long way in having flexible storage, which is way more robust than LVM. With today's huge drive capacities, I really see no reason to adjust the sizes of partitions on-the-fly, and putting several TB of data in a single directory is just Bad Design to begin with. That said, if you have a multi-TB amount of critical data while not having at least a simple RAID-1 backup, you are already standing in a big pile of sh*t just waiting to become obvious, regardless of LVM and stuff. Hardware fails, and storing data without a backup is just simply a disaster waiting to happen. Best, :-) Marko ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] Looking for a life-save LVM Guru
And then Btrfs (no LVM). mkfs.btrfs -d single /dev/sd[bcde] mount /dev/sdb /mnt/bigbtr cp -a /usr /mnt/bigbtr Unmount. Poweroff. Kill 3rd of 4 drives. Poweron. mount -o degraded,ro /dev/sdb /mnt/bigbtr ## degraded,ro is required or mount fails cp -a /mnt/bigbtr/usr/ /mnt/btrfs## copy to a different volume No dmesg errors. Bunch of I/O errors only when it was trying to copy data on the 3rd drive. But it continues. # du -sh /mnt/btrfs/usr 2.5G usr Exactly 1GB was on the missing drive. So I recovered everything that wasn't on that drive. One gotcha that applies to all three fs's that I'm not testing: in-use drive failure. I'm simulate drive failure by first cleanly unmounting and powering off. Super ideal. How the file system and anything underneath it (LVM and maybe RAID) handles drive failures while in use, is a huge factor. Chris Murphy ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] OT: AF 4k sector drives with 512 emulation
On Fri, Feb 27, 2015 at 2:59 PM, Chris Murphy li...@colorremedies.com wrote: On Fri, Feb 27, 2015 at 1:53 PM, Robert Arkiletian rob...@gmail.com wrote: Still have good quality older sata hardware raid cards that require 512 bytes/sector. As far as I know HD manufacturers are not making native 512 bytes/sector drives any more. 512n drives still exist, although they tend to be a bit smaller, 2TB or less. http://www.hgst.com/tech/techlib.nsf/techdocs/FD3F376DC2ECCE68882579D40082C393/$file/US7K4000_ds.pdf I too noticed that HGST (now owned by WD) makes native 512n drives. That pdf states that they come in 2,3,4 TB models. (A6 in the model # represents 512n). But there are almost no reviews on these HGST native 512n drives online. 4Kn drives are appearing now also. I don't expect these drives to be bootable except possibly by systems with UEFI firmware. It's also possible hardware RAID will reject them unless explicitly supported. http://www.hgst.com/tech/techlib.nsf/techdocs/29C9312E3B7D10CE88257D41000D8D16/$file/Ultrastar-7K6000-DS.pdf Some have better 512e emulation than others. Looking for some advice on which to avoid and which are recommended. Thanks. PS this is for a CentOS6 server. The emulation implementations don't come into play if the alignment is correct from the start. The better implementations have significantly less pathological behavior if alignment is wrong, but that's anecdotal, I don't have any empirical data available. But I'd say in any case you want it properly aligned. According to this pdf [1] alignment is important but from what I understand 512e emulation still has a small RMW performance hit from writes that are smaller than 4k or if the writes are not a multiple of 4k. Also it's probably not a good idea to mix 512e with 512n in a raid set. Although this may be hard to avoid as drives fail in the future. [1] http://i.dell.com/sites/doccontent/shared-content/data-sheets/en/Documents/512e_4Kn_Disk_Formats_120413.pdf ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] Looking for a life-save LVM Guru
On 2/27/2015 8:00 PM, Marko Vojinovic wrote: And this is why I don't like LVM to begin with. If one of the drives dies, you're screwed not only for the data on that drive, but even for data on remaining healthy drives. with classic LVM, you were supposed to use raid for your PV's. The new LVM in 6.3+ has integrated raid at an LV level, you just have to declare all your LVs with appropriate raid levels. -- john r pierce 37N 122W somewhere on the middle of the left coast ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] Looking for a life-save LVM Guru
On Fri, Feb 27, 2015 at 9:44 PM, John R Pierce pie...@hogranch.com wrote: On 2/27/2015 8:00 PM, Marko Vojinovic wrote: And this is why I don't like LVM to begin with. If one of the drives dies, you're screwed not only for the data on that drive, but even for data on remaining healthy drives. with classic LVM, you were supposed to use raid for your PV's. The new LVM in 6.3+ has integrated raid at an LV level, you just have to declare all your LVs with appropriate raid levels. I think since inception of LVM2, type mirror has been available which is now legacy (but still available). The current type since CentOS 6.3 is raid1. But yes for anything raid4+ you previously had to create it with mdadm or use hardware RAID (which of course you can still do, most people still prefer managing software raid with mdadm than lvm's tools). -- Chris Murphy ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] Looking for a life-save LVM Guru
Ok, sorry about that. On Sat, February 28, 2015 9:13 am, Chris Murphy wrote: OK It's extremely rude to cross post the same question across multiple lists like this at exactly the same time, and without at least showing the cross posting. I just replied to the one on Fedora users before I saw this post. This sort of thing wastes people's time. Pick one list based on the best case chance for response and give it 24 hours. Chris Murphy ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] Package group X Window System has disappeared
On 27/02/15 13:27, Greg Bailey wrote: On 02/27/2015 02:54 AM, Niki Kovacs wrote: Hi, Until last week, I could install a CentOS 7 based desktop using the following approach: 1. Install minimal system. 2. yum groupinstall X Window System 3. yum install gdm gnome-classic-session gnome-terminal liberation-fonts 4. Install applications as needed. This morning, the package group X Window System seems to have disappeared. This is embarrassing. What happened? Niki Works for me, although I have to do yum group list hidden to see the X Window System group (both as available for installation, and as installed once I've done the group install invocation). yum group list hidden and yum group list hidden ids are 2 variations I only learned about recently... Nice tip! I've added it to the Yum tips and tricks section on the wiki as there wasn't anything there on working with yum groups: http://wiki.centos.org/TipsAndTricks/YumAndRPM#head-b3159dc0594ab59a5ae0c27d86c3815085064419 Note 'yum group list' only works on el7 whereas 'yum grouplist' works across el5/6/7 so I've gone with that syntax on the wiki. Nice recipe, BTW, for a simple GUI install. The spacing of the font doesn't look very good in Gnome terminal though; I must be missing whatever the default font is configured to be. -Greg ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] Package group X Window System has disappeared
On 02/27/2015 02:54 AM, Niki Kovacs wrote: Hi, Until last week, I could install a CentOS 7 based desktop using the following approach: 1. Install minimal system. 2. yum groupinstall X Window System 3. yum install gdm gnome-classic-session gnome-terminal liberation-fonts 4. Install applications as needed. This morning, the package group X Window System seems to have disappeared. This is embarrassing. What happened? Niki Works for me, although I have to do yum group list hidden to see the X Window System group (both as available for installation, and as installed once I've done the group install invocation). yum group list hidden and yum group list hidden ids are 2 variations I only learned about recently... Nice recipe, BTW, for a simple GUI install. The spacing of the font doesn't look very good in Gnome terminal though; I must be missing whatever the default font is configured to be. -Greg ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
[CentOS] repositories
Hi all :-) This is my first post: I'm coming from debian/bsd world. A question about repositories: minimal installation (version 7) provides: CentOS-Base.repo CentOS-CR.repo CentOS-Debuginfo.repo CentOS-fasttrack.repo CentOS-Sources.repo CentOS-Vault.repo I known there are others repositories as: RPMForge, EPEL, REMI, ATrpms, Webtatic (and maybe also others) so, what kind of these repositories are? Does they repositories substitute packages from main? Or only adding new packages? thanks for advices and help! Pol ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] repositories
On 27/02/15 12:30, Pol Hallen wrote: Hi all :-) This is my first post: I'm coming from debian/bsd world. A question about repositories: minimal installation (version 7) provides: CentOS-Base.repo CentOS-CR.repo CentOS-Debuginfo.repo CentOS-fasttrack.repo CentOS-Sources.repo CentOS-Vault.repo I known there are others repositories as: RPMForge, EPEL, REMI, ATrpms, Webtatic (and maybe also others) so, what kind of these repositories are? Does they repositories substitute packages from main? Or only adding new packages? thanks for advices and help! Pol Hi Pol, Welcome to CentOS and the mailing lsit. Start here for more information on 3rd party repositories: http://wiki.centos.org/AdditionalResources/Repositories Some may replace distro packages whereas others may have a policy not to replace distro packages (so only contain packages not in the distro). Some repositories split into channels where the main repo doesn't contain distro packages but may have an extras channel that contains any packages that replace distro packages. Ultimately CentOS has little influence over what 3rd party repos do so the ecision / policies are down to each individual repo. The yum priorities plugin can be used to prevent 3rd party repositories from replacing distro packages: http://wiki.centos.org/PackageManagement/Yum/Priorities Hope that at least gets you started. ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
[CentOS] CentOS 7 hand-edit the network configuration files
Helo,
on
http://wiki.centos.org/FAQ/CentOS7
in
3. And what if I want the old naming back?
is written:
/etc/udev/rules.d/60-net.rules seems necessary to override
/usr/lib/udev/rules.d/60-net.rules
According to my experience, the text should be changed to:
/etc/udev/rules.d/70-persistent-net.rules has to describe the naming
rule according to this example:
SUBSYSTEM==net, ACTION==add, DRIVERS==?*,
ATTR{address}==00:00:00:00:00:00, ATTR{type}==1, KERNEL==eth0,
NAME=eth0
where ATTR{adress} is the HWADDR of the network interface.
Static assignment: GATEWAY has to be configured in /etc/sysconfig/network
--
Viele Grüße
Helmut Drodofsky
Internet XS Service GmbH
Heßbrühlstraße 15
70565 Stuttgart
Geschäftsführung
Dr.-Ing. Roswitha Hahn-Drodofsky
HRB 21091 Stuttgart
USt.ID: DE190582774
Tel. 0711 781941 0
Fax: 0711 781941 79
Mail: i...@internet-xs.de
www.internet-xs.de
___
CentOS mailing list
CentOS@centos.org
http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] Cyrus 2.4 and Centos6
On Fri, Feb 27, 2015 at 11:19:55AM +0100, Timothy Kesten wrote: I'd like to install cyrus-imapd 2.4 in CentOS6. Found rpm cyrus 2.4 for CentOS6 on rpmseek. cyrus-imapd-2.4.17-30.1.x86_64.rpm But there are conflicts with postfix 2.6.6. Can I ignore this conflicts or is there a suitable version of ppstfix available? The supported version of Cyrus IMAPd in CentOS6 is v2.3. If you found v2.4 someplace on the internet, they aren't CentOS packages, and I really doubt that they were intended for CentOS6 if they conflict with postfix. I suggest contacting whoever created those v2.4 packages and asking them about the conflict, or use the CentOS6 packages. You could also try backporting the CentOS7 packages to CentOS6, keeping in mind that it relies on systemd and not Upstart to start the service. -- Jonathan Billings billi...@negate.org ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS-es] Ayuda rutas reglas firewall
Saludos amigos listeros vuelvo a pedir su ayuda les comento mi problema lo he podido solventar a medias paso a explicar lo que he realizado: En el servidor Linux he creado esta regla a nivel de firewall $IPTABLES -A FORWARD -i eth3 -j ACCEPT $IPTABLES -t nat -A POSTROUTING -s 192.168.197.0/24 -p tcp -o eth3 -j SNAT --to 192.168.4.8 Con estas reglas ya puedo hacer ping desde el servidor Linux ip 192.168.197.4 al segmento 192.168.4.X que esta en la otra oficina, adicional también puedo conectarme via escritorio remoto a cualquier maquina del segmento 192.168.4.X desde cualesquier equipo que está en mi red 192.168.197.X Ahora no se porque no puedo hacer ping al segmento 192.168.0.X desde cualquier maquina que está en la red 192.168.197.4., pero desde el servidor linux si hago ping a cualquier máquina de la red 192.168.0.X, la puerta de enlace para llegar a este es segmento 192.168.4.8, se que no es ruta porque desde el servidor linux si hago ping Agradezco si me puedan ayudar con esta última parte para ver si puedo resolver mi problema de forma definitiva. -- Saludos Cordiales |César Martínez | Ingeniero de Sistemas | SERVICOM |Tel: (593-2)554-271 2221-386 | Ext 4501 |Celular: 0999374317 |Skype servicomecuador |Web www.servicomecuador.com Síguenos en: |Twitter: @servicomecuador |Facebook: servicomec |Zona Clientes: www.servicomecuador.com/billing |Blog: http://servicomecuador.com/blog |Dir. Av. 10 de Agosto N29-140 Entre |Acuña y Cuero y Caicedo |Quito - Ecuador - Sudamérica On 24/02/15 21:01, César Martinez wrote: Gracias si tengo habilitada esa opción por defecto, adicional debería crear alguna regla iptables con POSTROUTING para mandar el trafico ?? ___ CentOS-es mailing list CentOS-es@centos.org http://lists.centos.org/mailman/listinfo/centos-es
Re: [CentOS] Package group X Window System has disappeared
On 27/02/15 09:54, Niki Kovacs wrote: Hi, Until last week, I could install a CentOS 7 based desktop using the following approach: 1. Install minimal system. 2. yum groupinstall X Window System 3. yum install gdm gnome-classic-session gnome-terminal liberation-fonts 4. Install applications as needed. This morning, the package group X Window System seems to have disappeared. This is embarrassing. What happened? Niki Not sure as I don't have a CentOS 7 install to hand, only RHEL7 on which the X Window System group does not exist. It does exist on RHEL 5/6 - perhaps you are getting confused between versions? You can see the list of valid groups with: yum grouplist ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] repositories
Hope that at least gets you started. Hi Ned, thanks for help :-) Pol ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS-es] ayudar servidor se me apaga
Suena a topico pero desactiva selinux! El 27/02/2015 16:42, Aldo Rivadeneira aldo.rivadene...@gmail.com escribió: Lo único que puedo detectar es que activaron IPv6 y eso requiere de un reinicio de sistema para que lo tome activo. El segundo detalle es el raid no se si te este causando problemas la controladora seria cosa de validar si actualizaron el kernel y exista un problema con ello. Como comentan seria cosa de probar : Validar por partes el kernel y si es algo físico. Probar si es el caso con el kernel anterior. Actualizar kernel nuevamente. Actualizar firmware de la controladora RAID. Saludos, On Wednesday, January 7, 2015, Guillermo Henríquez guillermoma...@gmail.com wrote: Amigos: Necesito ayuda, un servidor se me apaga, con el mensaje shutting down for system halt y luego al arrancalo muestra el sig. log: kernel: Linux version 2.6.18-348.1.1.el5 (mockbu...@builder10.centos.org javascript:;) (gcc version 4.1.2 20080704 (Red Hat 4.1.2-54)) #1 SMP Tue Jan 22 16:19:19 EST 2013 kernel: Command line: ro root=/dev/md2 kernel: BIOS-provided physical RAM map: kernel: BIOS-e820: 0001 - 00093800 (usable) kernel: BIOS-e820: 00093800 - 00093c00 (reserved) kernel: BIOS-e820: 00098000 - 000a (reserved) kernel: BIOS-e820: 000f - 0010 (reserved) kernel: BIOS-e820: 0010 - 7d7d4000 (usable) kernel: BIOS-e820: 7d7d4000 - 7d7de000 (ACPI data) kernel: BIOS-e820: 7d7de000 - 7d7df000 (usable) kernel: BIOS-e820: 7d7df000 - 8000 (reserved) kernel: BIOS-e820: f400 - f800 (reserved) kernel: BIOS-e820: fec0 - fee1 (reserved) kernel: BIOS-e820: ff80 - 0001 (reserved) kernel: DMI 2.7 present. kernel: No NUMA configuration found kernel: Faking a node at -7d7df000 kernel: Bootmem setup node 0 -7d7df000 kernel: Memory for crash kernel (0x0 to 0x0) notwithin permissible range kernel: disabling kdump kernel: ACPI: PM-Timer IO Port: 0x908 kernel: ACPI: LAPIC (acpi_id[0x00] lapic_id[0x00] enabled) kernel: Processor #0 7:10 APIC version 21 kernel: ACPI: LAPIC (acpi_id[0x02] lapic_id[0x02] enabled) kernel: Processor #2 7:10 APIC version 21 kernel: ACPI: LAPIC (acpi_id[0x04] lapic_id[0x04] enabled) kernel: Processor #4 7:10 APIC version 21 kernel: ACPI: LAPIC (acpi_id[0x06] lapic_id[0x06] enabled) kernel: Processor #6 7:10 APIC version 21 kernel: ACPI: LAPIC (acpi_id[0x00] lapic_id[0x00] disabled) last message repeated 59 times kernel: ACPI: LAPIC_NMI (acpi_id[0xff] dfl dfl lint[0x1]) kernel: ACPI: IOAPIC (id[0x08] address[0xfec0] gsi_base[0]) kernel: IOAPIC[0]: apic_id 8, version 32, address 0xfec0, GSI 0-23 kernel: ACPI: INT_SRC_OVR (bus 0 bus_irq 0 global_irq 2 high edge) kernel: ACPI: INT_SRC_OVR (bus 0 bus_irq 9 global_irq 9 high level) kernel: Setting APIC routing to physical flat kernel: ACPI: HPET id: 0x8086a201 base: 0xfed0 kernel: Using ACPI (MADT) for SMP configuration information kernel: Nosave address range: 00093000 - 00094000 kernel: Nosave address range: 00093000 - 00098000 kernel: Nosave address range: 00098000 - 000a kernel: Nosave address range: 000a - 000f kernel: Nosave address range: 000f - 0010 kernel: Nosave address range: 7d7d4000 - 7d7de000 kernel: Allocating PCI resources starting at 8800 (gap: 8000:7400) kernel: SMP: Allowing 64 CPUs, 60 hotplug CPUs kernel: Built 1 zonelists. Total pages: 505346 kernel: Kernel command line: ro root=/dev/md2 kernel: Initializing CPU#0 kernel: PID hash table entries: 4096 (order: 12, 32768 bytes) kernel: Console: colour VGA+ 80x25 kernel: Dentry cache hash table entries: 262144 (order: 9, 2097152 bytes) kernel: Inode-cache hash table entries: 131072 (order: 8, 1048576 bytes) kernel: Checking aperture... kernel: Memory: 2012576k/2056060k available (2627k kernel code, 42944k reserved, 1677k data, 224k init) kernel: Calibrating delay loop (skipped), value calculated using timer frequency.. 6186.24 BogoMIPS (lpj=3093121) kernel: Security Framework v1.0.0 initialized kernel: SELinux: Initializing. kernel: selinux_register_security: Registering secondary module capability kernel: Capability LSM initialized as secondary kernel: Mount-cache hash table entries: 256 kernel: CPU: L1 I cache: 32K, L1 D cache: 32K kernel: CPU: L2 cache: 256K kernel: CPU: L3 cache: 8192K kernel: using mwait in idle threads. kernel: CPU: Physical Processor ID: 0 kernel: CPU: Processor Core ID: 0 kernel: MCE: Machine Check Exception Reporting is disabled. kernel: SMP alternatives: switching to UP code
[CentOS] Glibc sources?
All, Please excuse any ignorance in this e-mail as I am not a RH/CentOS/Fedora user and may blunder my way through the correct terminology for my request. I'm tasked with reconstructing the CentOS version of the GlibC library for testing with gethostbyname(). My mission is to show that we are not affected by the latest exploit for the product we are shipping targeted for RHEL and CentOS. To do so, I want to equip gethostbyname() with additional code. My objective is to rebuild from source the EXACT version of GlibC for CentOS 6.6. Afterwards, I will make my changes in the code, rebuild and complete my testing. libc.so.6 reports: GNU C Library stable release version 2.12, by Roland McGrath et al. Copyright (C) 2010 Free Software Foundation, Inc. This is free software; see the source for copying conditions. There is NO warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. Compiled by GNU CC version 4.4.7 20120313 (Red Hat 4.4.7-11). Compiled on a Linux 2.6.32 system on 2015-01-27. Available extensions: The C stubs add-on version 2.1.2. crypt add-on version 2.1 by Michael Glad and others GNU Libidn by Simon Josefsson Native POSIX Threads Library by Ulrich Drepper et al BIND-8.2.3-T5B RT using linux kernel aio libc ABIs: UNIQUE IFUNC For bug reporting instructions, please see: http://www.gnu.org/software/libc/bugs.html. But, when looking through the source code for this version on the CentOS servers I only see: http://vault.centos.org/6.6/updates/Source/SPackages/ [ ] glibc-2.12-1.149.el6_6.4.src.rpm07-Jan-2015 22:45 15M [ ] glibc-2.12-1.149.el6_6.5.src.rpm27-Jan-2015 23:13 15M Please point me to the correct source tarball, and all required patches so that I can reconstruct my loaded version of GlibC. A yum command is also acceptable. Thanks, Andy ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] Glibc sources?
On 27 February 2015 at 13:49, ANDY KENNEDY andy.kenn...@adtran.com wrote: All, Please excuse any ignorance in this e-mail as I am not a RH/CentOS/Fedora user and may blunder my way through the correct terminology for my request. I'm tasked with reconstructing the CentOS version of the GlibC library for testing with gethostbyname(). My mission is to show that we are not affected by the latest exploit for the product we are shipping targeted for RHEL and CentOS. To do so, I want to equip gethostbyname() with additional code. My objective is to rebuild from source the EXACT version of GlibC for CentOS 6.6. Afterwards, I will make my changes in the code, rebuild and complete my testing. libc.so.6 reports: GNU C Library stable release version 2.12, by Roland McGrath et al. Copyright (C) 2010 Free Software Foundation, Inc. This is free software; see the source for copying conditions. There is NO warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. Compiled by GNU CC version 4.4.7 20120313 (Red Hat 4.4.7-11). Compiled on a Linux 2.6.32 system on 2015-01-27. Available extensions: The C stubs add-on version 2.1.2. crypt add-on version 2.1 by Michael Glad and others GNU Libidn by Simon Josefsson Native POSIX Threads Library by Ulrich Drepper et al BIND-8.2.3-T5B RT using linux kernel aio libc ABIs: UNIQUE IFUNC For bug reporting instructions, please see: http://www.gnu.org/software/libc/bugs.html. But, when looking through the source code for this version on the CentOS servers I only see: http://vault.centos.org/6.6/updates/Source/SPackages/ [ ] glibc-2.12-1.149.el6_6.4.src.rpm07-Jan-2015 22:45 15M [ ] glibc-2.12-1.149.el6_6.5.src.rpm27-Jan-2015 23:13 15M Please point me to the correct source tarball, and all required patches so that I can reconstruct my loaded version of GlibC. A yum command is also acceptable. Thanks, Andy ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos Hi Andy, You can use yumdownloader to download the source $ yumdownloader --source glibc $ rpm -ivh package.src.rpm This will give you all the relevant files required for building the package. -- Kind Regards Earl Ramirez ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] Glibc sources?
On Fri, Feb 27, 2015 at 06:49:23PM +, ANDY KENNEDY wrote: But, when looking through the source code for this version on the CentOS servers I only see: http://vault.centos.org/6.6/updates/Source/SPackages/ [ ] glibc-2.12-1.149.el6_6.5.src.rpm27-Jan-2015 23:13 15M This is the latest version for a fully patched CentOS 6 system. % rpm -q glibc glibc-2.12-1.149.el6_6.5.x86_64 glibc-2.12-1.149.el6_6.5.i686 -- rgds Stephen ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] Glibc sources?
On Fri, 27 Feb 2015 18:49:23 + ANDY KENNEDY wrote: Compiled on a Linux 2.6.32 system on 2015-01-27. glibc-2.12-1.149.el6_6.5.src.rpm 27-Jan-2015 23:13 15M The date on that rpm matches the compiled on date that you posted. -- MELVILLE THEATRE ~ Real D 3D Digital Cinema ~ www.melvilletheatre.com ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] Package group X Window System has disappeared
Greg Bailey wrote: On 02/27/2015 02:54 AM, Niki Kovacs wrote: Until last week, I could install a CentOS 7 based desktop using the following approach: 1. Install minimal system. 2. yum groupinstall X Window System 3. yum install gdm gnome-classic-session gnome-terminal liberation-fonts 4. Install applications as needed. This morning, the package group X Window System seems to have disappeared. This is embarrassing. snip Works for me, although I have to do yum group list hidden to see the That's *weird* . Why would you even want hidden groups? I was looking on a 7 box, and did see an environment group of Server with GUI; I also see, under available groups, Desktop, and Desktop Platform. I have no idea what the difference is I wish they'd have user install groups and expert install groups, so that when the CentOS desktop clobbers Ubuntu, and Mint, and all the rest, those of us who know what we're doing, and/or working on servers, can install more easily mark ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS-es] ayudar servidor se me apaga
Lo único que puedo detectar es que activaron IPv6 y eso requiere de un reinicio de sistema para que lo tome activo. El segundo detalle es el raid no se si te este causando problemas la controladora seria cosa de validar si actualizaron el kernel y exista un problema con ello. Como comentan seria cosa de probar : Validar por partes el kernel y si es algo físico. Probar si es el caso con el kernel anterior. Actualizar kernel nuevamente. Actualizar firmware de la controladora RAID. Saludos, On Wednesday, January 7, 2015, Guillermo Henríquez guillermoma...@gmail.com wrote: Amigos: Necesito ayuda, un servidor se me apaga, con el mensaje shutting down for system halt y luego al arrancalo muestra el sig. log: kernel: Linux version 2.6.18-348.1.1.el5 (mockbu...@builder10.centos.org javascript:;) (gcc version 4.1.2 20080704 (Red Hat 4.1.2-54)) #1 SMP Tue Jan 22 16:19:19 EST 2013 kernel: Command line: ro root=/dev/md2 kernel: BIOS-provided physical RAM map: kernel: BIOS-e820: 0001 - 00093800 (usable) kernel: BIOS-e820: 00093800 - 00093c00 (reserved) kernel: BIOS-e820: 00098000 - 000a (reserved) kernel: BIOS-e820: 000f - 0010 (reserved) kernel: BIOS-e820: 0010 - 7d7d4000 (usable) kernel: BIOS-e820: 7d7d4000 - 7d7de000 (ACPI data) kernel: BIOS-e820: 7d7de000 - 7d7df000 (usable) kernel: BIOS-e820: 7d7df000 - 8000 (reserved) kernel: BIOS-e820: f400 - f800 (reserved) kernel: BIOS-e820: fec0 - fee1 (reserved) kernel: BIOS-e820: ff80 - 0001 (reserved) kernel: DMI 2.7 present. kernel: No NUMA configuration found kernel: Faking a node at -7d7df000 kernel: Bootmem setup node 0 -7d7df000 kernel: Memory for crash kernel (0x0 to 0x0) notwithin permissible range kernel: disabling kdump kernel: ACPI: PM-Timer IO Port: 0x908 kernel: ACPI: LAPIC (acpi_id[0x00] lapic_id[0x00] enabled) kernel: Processor #0 7:10 APIC version 21 kernel: ACPI: LAPIC (acpi_id[0x02] lapic_id[0x02] enabled) kernel: Processor #2 7:10 APIC version 21 kernel: ACPI: LAPIC (acpi_id[0x04] lapic_id[0x04] enabled) kernel: Processor #4 7:10 APIC version 21 kernel: ACPI: LAPIC (acpi_id[0x06] lapic_id[0x06] enabled) kernel: Processor #6 7:10 APIC version 21 kernel: ACPI: LAPIC (acpi_id[0x00] lapic_id[0x00] disabled) last message repeated 59 times kernel: ACPI: LAPIC_NMI (acpi_id[0xff] dfl dfl lint[0x1]) kernel: ACPI: IOAPIC (id[0x08] address[0xfec0] gsi_base[0]) kernel: IOAPIC[0]: apic_id 8, version 32, address 0xfec0, GSI 0-23 kernel: ACPI: INT_SRC_OVR (bus 0 bus_irq 0 global_irq 2 high edge) kernel: ACPI: INT_SRC_OVR (bus 0 bus_irq 9 global_irq 9 high level) kernel: Setting APIC routing to physical flat kernel: ACPI: HPET id: 0x8086a201 base: 0xfed0 kernel: Using ACPI (MADT) for SMP configuration information kernel: Nosave address range: 00093000 - 00094000 kernel: Nosave address range: 00093000 - 00098000 kernel: Nosave address range: 00098000 - 000a kernel: Nosave address range: 000a - 000f kernel: Nosave address range: 000f - 0010 kernel: Nosave address range: 7d7d4000 - 7d7de000 kernel: Allocating PCI resources starting at 8800 (gap: 8000:7400) kernel: SMP: Allowing 64 CPUs, 60 hotplug CPUs kernel: Built 1 zonelists. Total pages: 505346 kernel: Kernel command line: ro root=/dev/md2 kernel: Initializing CPU#0 kernel: PID hash table entries: 4096 (order: 12, 32768 bytes) kernel: Console: colour VGA+ 80x25 kernel: Dentry cache hash table entries: 262144 (order: 9, 2097152 bytes) kernel: Inode-cache hash table entries: 131072 (order: 8, 1048576 bytes) kernel: Checking aperture... kernel: Memory: 2012576k/2056060k available (2627k kernel code, 42944k reserved, 1677k data, 224k init) kernel: Calibrating delay loop (skipped), value calculated using timer frequency.. 6186.24 BogoMIPS (lpj=3093121) kernel: Security Framework v1.0.0 initialized kernel: SELinux: Initializing. kernel: selinux_register_security: Registering secondary module capability kernel: Capability LSM initialized as secondary kernel: Mount-cache hash table entries: 256 kernel: CPU: L1 I cache: 32K, L1 D cache: 32K kernel: CPU: L2 cache: 256K kernel: CPU: L3 cache: 8192K kernel: using mwait in idle threads. kernel: CPU: Physical Processor ID: 0 kernel: CPU: Processor Core ID: 0 kernel: MCE: Machine Check Exception Reporting is disabled. kernel: SMP alternatives: switching to UP code kernel: ACPI: Core revision 20060707 kernel: Using local APIC timer interrupts. kernel: Detected 6.236 MHz APIC timer. kernel: SMP alternatives: switching to SMP code kernel: Booting processor 1/4 APIC 0x2
Re: [CentOS] Package group X Window System has disappeared
Le 27/02/2015 16:01, m.r...@5-cent.us a écrit : That's*weird* . Why would you even want hidden groups? Weird and... not very intelligent. To say it politely. :o) -- Microlinux - Solutions informatiques 100% Linux et logiciels libres 7, place de l'église - 30730 Montpezat Web : http://www.microlinux.fr Mail : i...@microlinux.fr Tél. : 04 66 63 10 32 ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] Cyrus 2.4 and Centos6
Is there a reason why you need 2.4 vs. the 2.3 package from the CentOS6 repos? Mike On 02/27/2015 05:19 AM, Timothy Kesten wrote: Hi Folks, I'd like to install cyrus-imapd 2.4 in CentOS6. Found rpm cyrus 2.4 for CentOS6 on rpmseek. cyrus-imapd-2.4.17-30.1.x86_64.rpm But there are conflicts with postfix 2.6.6. Can I ignore this conflicts or is there a suitable version of ppstfix available? Thx Timothy ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
[CentOS] Odd nfs mount problem
I'm exporting a directory, firewall's open on both machines (one CentOS 6.6, the other RHEL 6.6), it automounts on the exporting machine, but the other server, not so much. ls /mountpoint/directory eventually times out (directory being the NFS mount). mount -t nfs server:/location/being/exported /mnt works... but an immediate ls /mnt gives me stale file handle. The twist on this: the directory being exported is on an xfs filesystem... one that's 33TB (it's an external RAID 6 appliance). Any ideas? mark ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] Odd nfs mount problem
m.r...@5-cent.us wrote: I'm exporting a directory, firewall's open on both machines (one CentOS 6.6, the other RHEL 6.6), it automounts on the exporting machine, but the other server, not so much. ls /mountpoint/directory eventually times out (directory being the NFS mount). mount -t nfs server:/location/being/exported /mnt works... but an immediate ls /mnt gives me stale file handle. The twist on this: the directory being exported is on an xfs filesystem... one that's 33TB (it's an external RAID 6 appliance). Any ideas? Oh, yes: I did just think to install xfs_progs, and did that, but still no joy. mark ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
[CentOS] OT: AF 4k sector drives with 512 emulation
Still have good quality older sata hardware raid cards that require 512 bytes/sector. As far as I know HD manufacturers are not making native 512 bytes/sector drives any more. Some have better 512e emulation than others. Looking for some advice on which to avoid and which are recommended. Thanks. PS this is for a CentOS6 server. ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] OT: AF 4k sector drives with 512 emulation
On 2/27/2015 12:53 PM, Robert Arkiletian wrote: Still have good quality older sata hardware raid cards that require 512 bytes/sector. As far as I know HD manufacturers are not making native 512 bytes/sector drives any more. Some have better 512e emulation than others. Looking for some advice on which to avoid and which are recommended. Thanks. PS this is for a CentOS6 server. any of the 'enterprise' nearline storage or NAS drives should be fine. I wouldn't use anything else in a RAID setup. Seagate NS series, for instance, or WD Red or Re, etc. -- john r pierce 37N 122W somewhere on the middle of the left coast ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] yum causing RPC timed out?
Apparently CentOS-7 - Base is failing, what does that mean? How do I contact the upstream for the repo? How do I find a working upstream? More info from command execution: do_ypcall: clnt_call: RPC: Timed out do_ypcall: clnt_call: RPC: Timed out http://mirror.supremebytes.com/centos/7.0.1406/os/x86_64/repodata/3cda64d1c161dd0fead8398a62ef9c691e78ee02fe56d04566f850c94929f61f-filelists.sqlite.bz2: [Errno 12] Timeout on http://mirror.supremebytes.com/centos/7.0.1406/os/x86_64/repodata/3cda64d1c161dd0fead8398a62ef9c691e78ee02fe56d04566f850c94929f61f-filelists.sqlite.bz2: (28, 'Resolving timed out after 30384 milliseconds') Trying other mirror. One of the configured repositories failed (CentOS-7 - Base), and yum doesn't have enough cached data to continue. At this point the only safe thing yum can do is fail. There are a few ways to work fix this: 1. Contact the upstream for the repository and get them to fix the problem. 2. Reconfigure the baseurl/etc. for the repository, to point to a working upstream. This is most often useful if you are using a newer distribution release than is supported by the repository (and the packages for the previous distribution release still work). 3. Disable the repository, so yum won't use it by default. Yum will then just ignore the repository until you permanently enable it again or use --enablerepo for temporary usage: yum-config-manager --disable base 4. Configure the failing repository to be skipped, if it is unavailable. Note that yum will try to contact the repo. when it runs most commands, so will have to try and fail each time (and thus. yum will be be much slower). If it is a very temporary problem though, this is often a nice compromise: yum-config-manager --save --setopt=base.skip_if_unavailable=true failure: repodata/3cda64d1c161dd0fead8398a62ef9c691e78ee02fe56d04566f850c94929f61f-filelists.sqlite.bz2 from base: [Errno 256] No more mirrors to try. http://centos.corenetworks.net/7.0.1406/os/x86_64/repodata/3cda64d1c161dd0fead8398a62ef9c691e78ee02fe56d04566f850c94929f61f-filelists.sqlite.bz2: [Errno 12] Timeout on http://centos.corenetworks.net/7.0.1406/os/x86_64/repodata/3cda64d1c161dd0fead8398a62ef9c691e78ee02fe56d04566f850c94929f61f-filelists.sqlite.bz2: (28, 'Resolving timed out after 30385 milliseconds') http://mirror.us.oneandone.net/linux/distributions/centos/7.0.1406/os/x86_64/repodata/3cda64d1c161dd0fead8398a62ef9c691e78ee02fe56d04566f850c94929f61f-filelists.sqlite.bz2: [Errno 12] Timeout on http://mirror.us.oneandone.net/linux/distributions/centos/7.0.1406/os/x86_64/repodata/3cda64d1c161dd0fead8398a62ef9c691e78ee02fe56d04566f850c94929f61f-filelists.sqlite.bz2: (28, 'Resolving timed out after 30385 milliseconds') http://centos.sonn.com/7.0.1406/os/x86_64/repodata/3cda64d1c161dd0fead8398a62ef9c691e78ee02fe56d04566f850c94929f61f-filelists.sqlite.bz2: [Errno 12] Timeout on http://centos.sonn.com/7.0.1406/os/x86_64/repodata/3cda64d1c161dd0fead8398a62ef9c691e78ee02fe56d04566f850c94929f61f-filelists.sqlite.bz2: (28, 'Resolving timed out after 30383 milliseconds') http://centos-distro.cavecreek.net/centos/7.0.1406/os/x86_64/repodata/3cda64d1c161dd0fead8398a62ef9c691e78ee02fe56d04566f850c94929f61f-filelists.sqlite.bz2: [Errno 12] Timeout on http://centos-distro.cavecreek.net/centos/7.0.1406/os/x86_64/repodata/3cda64d1c161dd0fead8398a62ef9c691e78ee02fe56d04566f850c94929f61f-filelists.sqlite.bz2: (28, 'Resolving timed out after 30383 milliseconds') http://mirror.clarkson.edu/centos/7.0.1406/os/x86_64/repodata/3cda64d1c161dd0fead8398a62ef9c691e78ee02fe56d04566f850c94929f61f-filelists.sqlite.bz2: [Errno 12] Timeout on http://mirror.clarkson.edu/centos/7.0.1406/os/x86_64/repodata/3cda64d1c161dd0fead8398a62ef9c691e78ee02fe56d04566f850c94929f61f-filelists.sqlite.bz2: (28, 'Resolving timed out after 30383 milliseconds') http://mirror.thelinuxfix.com/CentOS/7.0.1406/os/x86_64/repodata/3cda64d1c161dd0fead8398a62ef9c691e78ee02fe56d04566f850c94929f61f-filelists.sqlite.bz2: [Errno 12] Timeout on http://mirror.thelinuxfix.com/CentOS/7.0.1406/os/x86_64/repodata/3cda64d1c161dd0fead8398a62ef9c691e78ee02fe56d04566f850c94929f61f-filelists.sqlite.bz2: (28, 'Resolving timed out after 30383 milliseconds') http://mirrors.psychz.net/Centos/7.0.1406/os/x86_64/repodata/3cda64d1c161dd0fead8398a62ef9c691e78ee02fe56d04566f850c94929f61f-filelists.sqlite.bz2: [Errno 12] Timeout on http://mirrors.psychz.net/Centos/7.0.1406/os/x86_64/repodata/3cda64d1c161dd0fead8398a62ef9c691e78ee02fe56d04566f850c94929f61f-filelists.sqlite.bz2: (28, 'Resolving timed out after 30383 milliseconds') http://repos.mia.quadranet.com/centos/7.0.1406/os/x86_64/repodata/3cda64d1c161dd0fead8398a62ef9c691e78ee02fe56d04566f850c94929f61f-filelists.sqlite.bz2: [Errno 12] Timeout on
[CentOS] yum causing RPC timed out?
I just installed centos 7, yum is acting strange, experiencing RPC time-outs. Sometimes when I disable the additional repos (epel and rpmforge) it seems to make things act normal. But not this time (see below). Could I have some misconfiguration? Network glitch? What hypotheses should I be considering? Thanks, Dave [root@localhost ~]# yum repolist repo id repo name status base/7/x86_64CentOS-7 - Base 8,465 epel/x86_64 Extra Packages for Enterprise Linux 7 - x86_64 7,312 extras/7/x86_64 CentOS-7 - Extras 104 rpmforge RHEL 7 - RPMforge.net - dag 245 updates/7/x86_64 CentOS-7 - Updates 1,721 repolist: 17,847 [root@localhost ~]# yum --disablerepo=epel --disablerepo=rpmforge provides '*/applydeltarpm' do_ypcall: clnt_call: RPC: Timed out do_ypcall: clnt_call: RPC: Timed out http://centos.corenetworks.net/7.0.1406/os/x86_64/repodata/3cda64d1c161dd0fead8398a62ef9c691e78ee02fe56d04566f850c94929f61f-filelists.sqlite.bz2: [Errno 12] Timeout on http://centos.corenetworks.net/7.0.1406/os/x86_64/repodata/3cda64d1c161dd0fead8398a62ef9c691e78ee02fe56d04566f850c94929f61f-filelists.sqlite.bz2: (28, 'Resolving timed out after 30385 milliseconds') Trying other mirror. do_ypcall: clnt_call: RPC: Timed out [etc. etc.] ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] Odd nfs mount problem [SOLVED]
m.r...@5-cent.us wrote: m.r...@5-cent.us wrote: I'm exporting a directory, firewall's open on both machines (one CentOS 6.6, the other RHEL 6.6), it automounts on the exporting machine, but the other server, not so much. ls /mountpoint/directory eventually times out (directory being the NFS mount). mount -t nfs server:/location/being/exported /mnt works... but an immediate ls /mnt gives me stale file handle. The twist on this: the directory being exported is on an xfs filesystem... one that's 33TB (it's an external RAID 6 appliance). Any ideas? Oh, yes: I did just think to install xfs_progs, and did that, but still no joy. Since we got the RAID appliance mounted, we'd started with a project directory on it, and that exported just fine. So what seems to work was to put the new directory under that, and then export *that*. That is, /path/to/ourproj, which mounts under /ourproj, and we wanted to mount something else under /otherproj, (note that ourproj is the large xfs filesystem), so instead of /path/to/otherproj, I just exported /path/to/ourproj/otherproj, and mounted that on the other system as /otherproj. Does that make sense? Clear as mud? Anyway, it looks like we have our workaround. mark wish nfs could handle an option of inode64 ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] yum causing RPC timed out?
On 02/27/2015 01:11 PM, Dave Burns wrote: Apparently CentOS-7 - Base is failing, what does that mean? How do I contact the upstream for the repo? How do I find a working upstream? More info from command execution: do_ypcall: clnt_call: RPC: Timed out do_ypcall: clnt_call: RPC: Timed out http://mirror.supremebytes.com/centos/7.0.1406/os/x86_64/repodata/3cda64d1c161dd0fead8398a62ef9c691e78ee02fe56d04566f850c94929f61f-filelists.sqlite.bz2: [Errno 12] Timeout on http://mirror.supremebytes.com/centos/7.0.1406/os/x86_64/repodata/3cda64d1c161dd0fead8398a62ef9c691e78ee02fe56d04566f850c94929f61f-filelists.sqlite.bz2: (28, 'Resolving timed out after 30384 milliseconds') Trying other mirror. This has nothing to do with yum. You are using NIS for name lookup and your NIS server is not responding. -Thomas ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] C7, igb and DCB support for pause frame ?
Steven Tardy sjt5a...@gmail.com a écrit : DCB requires Priority Flow Control(PFC) aka 802.1Qbb. Flow Control is 802.3x. The two are often confused and not compatible. http://www.intel.com/content/www/us/en/ethernet-controllers/ethernet-controller-i350-datasheet.html Mentions flow control several times, but never PFC/priority-flow-control/802.1Qbb. PFC capable switches purposefully disable 802.3x flow control. Also PFC has to negotiate between two devices/switches matching QoS/CoS/no-drop policies. Some good reading for beginner PFC knowledge: http://www.cisco.com/c/dam/en/us/solutions/collateral/data-center-virtualization/ieee-802-1-data-center-bridging/at_a_glance_c45-460907.pdf What exactly are you trying to pause? Typically FCoE/iSCSI is set to no-drop and Ethernet traffic is paused/dropped in favor of storage traffic. If there is only one type/class/CoS of traffic PFC won't gain much over regular flow control/802.3x. Hope that helps. Hello Steven, You’ve been really helpful ! Our switches indeed do support 802.3x and not 802.1Qbb. Ethtool telling: Supported pause frame use: Symmetric Advertised pause frame use: Symmetric I guess (I’m more of a sysad guy than netad) we’re on the right track and have no need of DCB* and lldpad. Actually, our masters will be metadata server for the distributed FS (RozoFS not to name it), and will export a system image via NFS to nodes (2×1gbps, 802.3ad) which are « diskless » (no disk for OS but disks for distributed FS storage only). FC (802.3x) usage is mandatory for RozoFS. There will be some other traffic due to HTCondor (nodes will be execute nodes too), syslog being centralized on masters… I know, that not the perfect config, but we had to do that way due to budget constraints. Now I need to find how to get a single image for all the nodes :) (PXE, dhcpd, dracut and yum --installroot should do the trick I hope). Thanks again for the head’s up ! Regards, Laurent. ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] L2TP over IPSEC?
i know , i have configured On Thu, Feb 26, 2015 at 11:38 PM, CS DBA cs_...@consistentstate.com wrote: Hi All; anyone have any info on setting up a L2TP over IPSEC client vpn connection? Thanks in advance ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos -- Thanks and Regards, --- Dixson Rodriges, MoB:+91-9249500540 Email: dixa...@gmail.com,amdi...@gmail.com ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] Easy way to strip down CentOS?
On Fri, Feb 27, 2015 at 08:36:58AM +0100, Niki Kovacs wrote: Le 26/02/2015 15:53, David Both a écrit : Ok, I understand, now. I just leave multiple desktops in place and switch between them as I want. But perhaps you have reasons to do it as you do. That is one thing I really appreciate about Linux, the fact that there are many, many ways to accomplish almost everything and that what is right and works for me may not be what works best for you. I find that it's quite easy to get a minimal desktop going. I tend to use a custom compiled dwm, but this will work with most window managers. http://srobb.net/minimaldesktop.html -- Scott Robbins PGP keyID EB3467D6 ( 1B48 077D 66F6 9DB0 FDC2 A409 FA54 EB34 67D6 ) gpg --keyserver pgp.mit.edu --recv-keys EB3467D6 ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] yum causing RPC timed out?
On Fri, Feb 27, 2015 at 12:41 PM, Stephen Harris li...@spuddy.org wrote: do_ypcall is a NIS error message. (Previous NIS was called yellow pages; the yp in do_ypcall is a reference to that). Maybe you have hosts: files nis in /etc/nsswitch.conf or something else that's causing the OS to want to talk to NIS. grep hosts /etc/nsswitch.conf hosts: files nis dns myhostname Maybe I should change to hosts: files dns nis myhostname ? You _DO_ have a problem with your NIS setup somewhere. It is a problem if yum expects it to be something else. NIS passes all the tests I have (ypcat various outputs what I expect). thanks, Dave ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
[CentOS] Looking for a life-save LVM Guru
Dear All, I am in desperate need for LVM data rescue for my server. I have an VG call vg_hosting consisting of 4 PVs each contained in a separate hard drive (/dev/sda1, /dev/sdb1, /dev/sdc1, and /dev/sdd1). And this LV: lv_home was created to use all the space of the 4 PVs. Right now, the third hard drive is damaged; and therefore the third PV (/dev/sdc1) cannot be accessed anymore. I would like to recover whatever left in the other 3 PVs (/dev/sda1, /dev/sdb1, and /dev/sdd1). I have tried with the following: 1. Removing the broken PV: # vgreduce --force vg_hosting /dev/sdc1 Physical volume /dev/sdc1 still in use # pvmove /dev/sdc1 No extents available for allocation 2. Replacing the broken PV: I was able to create a new PV and restore the VG Config/meta data: # pvcreate --restorefile ... --uuid ... /dev/sdc1 # vgcfgrestore --file ... vg_hosting However, vgchange would give this error: # vgchange -a y device-mapper: resume ioctl on failed: Invalid argument Unable to resume vg_hosting-lv_home (253:4) 0 logical volume(s) in volume group vg_hosting now active Could someone help me please??? I'm in dire need for help to save the data, at least some of it if possible. Regards, Khem ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] yum causing RPC timed out?
On Fri, Feb 27, 2015 at 12:38:06PM -1000, Dave Burns wrote: What makes you think NIS is involved? Is Errno 12 a clue? I tried searching for (do_ypcall: clnt_call: rpc: timed do_ypcall is a NIS error message. (Previous NIS was called yellow pages; the yp in do_ypcall is a reference to that). Maybe you have hosts: files nis in /etc/nsswitch.conf or something else that's causing the OS to want to talk to NIS. You _DO_ have a problem with your NIS setup somewhere. -- rgds Stephen ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] Looking for a life-save LVM Guru
On 2/27/2015 4:25 PM, Khemara Lyn wrote: Right now, the third hard drive is damaged; and therefore the third PV (/dev/sdc1) cannot be accessed anymore. I would like to recover whatever left in the other 3 PVs (/dev/sda1, /dev/sdb1, and /dev/sdd1). your data is spread across all 4 drives, and you lost 25% of it. so only 3 out of 4 blocks of data still exist. good luck with recovery. -- john r pierce 37N 122W somewhere on the middle of the left coast ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] Looking for a life-save LVM Guru
- Original Message - | Dear All, | | I am in desperate need for LVM data rescue for my server. | I have an VG call vg_hosting consisting of 4 PVs each contained in a | separate hard drive (/dev/sda1, /dev/sdb1, /dev/sdc1, and /dev/sdd1). | And this LV: lv_home was created to use all the space of the 4 PVs. | | Right now, the third hard drive is damaged; and therefore the third PV | (/dev/sdc1) cannot be accessed anymore. I would like to recover whatever | left in the other 3 PVs (/dev/sda1, /dev/sdb1, and /dev/sdd1). | | I have tried with the following: | | 1. Removing the broken PV: | | # vgreduce --force vg_hosting /dev/sdc1 | Physical volume /dev/sdc1 still in use | | # pvmove /dev/sdc1 | No extents available for allocation This would indicate that you don't have sufficient extents to move the data off of this disk. If you have another disk then you could try adding it to the VG and then moving the extents. | 2. Replacing the broken PV: | | I was able to create a new PV and restore the VG Config/meta data: | | # pvcreate --restorefile ... --uuid ... /dev/sdc1 | # vgcfgrestore --file ... vg_hosting | | However, vgchange would give this error: | | # vgchange -a y | device-mapper: resume ioctl on failed: Invalid argument | Unable to resume vg_hosting-lv_home (253:4) | 0 logical volume(s) in volume group vg_hosting now active There should be no need to create a PV and then restore the VG unless the entire VG is damaged. The configuration should still be available on the other disks and adding the new PV and moving the extents should be enough. | Could someone help me please??? | I'm in dire need for help to save the data, at least some of it if possible. Can you not see the PV/VG/LV at all? -- James A. Peltier IT Services - Research Computing Group Simon Fraser University - Burnaby Campus Phone : 778-782-6573 Fax : 778-782-3045 E-Mail : jpelt...@sfu.ca Website : http://www.sfu.ca/itservices Twitter : @sfu_rcg Powering Engagement Through Technology Build upon strengths and weaknesses will generally take care of themselves - Joyce C. Lock ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] Looking for a life-save LVM Guru
Thank you, John for your quick reply. That is what I hope. But how to do it? I cannot even activate the LV with the remaining PVs. Thanks, Khem On Sat, February 28, 2015 7:34 am, John R Pierce wrote: On 2/27/2015 4:25 PM, Khemara Lyn wrote: Right now, the third hard drive is damaged; and therefore the third PV (/dev/sdc1) cannot be accessed anymore. I would like to recover whatever left in the other 3 PVs (/dev/sda1, /dev/sdb1, and /dev/sdd1). your data is spread across all 4 drives, and you lost 25% of it. so only 3 out of 4 blocks of data still exist. good luck with recovery. -- john r pierce 37N 122W somewhere on the middle of the left coast ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] Looking for a life-save LVM Guru
Dear James, Thank you for being quick to help. Yes, I could see all of them: # vgs # lvs # pvs Regards, Khem On Sat, February 28, 2015 7:37 am, James A. Peltier wrote: - Original Message - | Dear All, | | I am in desperate need for LVM data rescue for my server. | I have an VG call vg_hosting consisting of 4 PVs each contained in a | separate hard drive (/dev/sda1, /dev/sdb1, /dev/sdc1, and /dev/sdd1). | And this LV: lv_home was created to use all the space of the 4 PVs. | | Right now, the third hard drive is damaged; and therefore the third PV | (/dev/sdc1) cannot be accessed anymore. I would like to recover whatever | left in the other 3 PVs (/dev/sda1, /dev/sdb1, and /dev/sdd1). | | I have tried with the following: | | 1. Removing the broken PV: | | # vgreduce --force vg_hosting /dev/sdc1 | Physical volume /dev/sdc1 still in use | | # pvmove /dev/sdc1 | No extents available for allocation This would indicate that you don't have sufficient extents to move the data off of this disk. If you have another disk then you could try adding it to the VG and then moving the extents. | 2. Replacing the broken PV: | | I was able to create a new PV and restore the VG Config/meta data: | | # pvcreate --restorefile ... --uuid ... /dev/sdc1 | # vgcfgrestore --file ... vg_hosting | | However, vgchange would give this error: | | # vgchange -a y | device-mapper: resume ioctl on failed: Invalid argument | Unable to resume vg_hosting-lv_home (253:4) | 0 logical volume(s) in volume group vg_hosting now active There should be no need to create a PV and then restore the VG unless the entire VG is damaged. The configuration should still be available on the other disks and adding the new PV and moving the extents should be enough. | Could someone help me please??? | I'm in dire need for help to save the data, at least some of it if possible. Can you not see the PV/VG/LV at all? -- James A. Peltier IT Services - Research Computing Group Simon Fraser University - Burnaby Campus Phone : 778-782-6573 Fax : 778-782-3045 E-Mail : jpelt...@sfu.ca Website : http://www.sfu.ca/itservices Twitter : @sfu_rcg Powering Engagement Through Technology Build upon strengths and weaknesses will generally take care of themselves - Joyce C. Lock ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] OT: AF 4k sector drives with 512 emulation
The default for fdisk, parted, and gdisk is starting the first partition on LBA 2048, which is 8 sector aligned. You don't need any options. The alternative is to simply not partition the drives or the resulting RAID and just format it. Chris Murphy ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] Looking for a life-save LVM Guru
On 2/27/2015 4:37 PM, James A. Peltier wrote: | I was able to create a new PV and restore the VG Config/meta data: | | # pvcreate --restorefile ... --uuid ... /dev/sdc1 | oh, that step means you won't be able to recover ANY of the data that was formerly on that PV. -- john r pierce 37N 122W somewhere on the middle of the left coast ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] Looking for a life-save LVM Guru
Dear John, I understand; I tried it in the hope that, I could activate the LV again with a new PV replacing the damaged one. But still I could not activate it. What is the right way to recover the remaining PVs left? Regards, Khem On Sat, February 28, 2015 7:42 am, John R Pierce wrote: On 2/27/2015 4:37 PM, James A. Peltier wrote: | I was able to create a new PV and restore the VG Config/meta data: | | # pvcreate --restorefile ... --uuid ... /dev/sdc1 | oh, that step means you won't be able to recover ANY of the data that was formerly on that PV. -- john r pierce 37N 122W somewhere on the middle of the left coast ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] Looking for a life-save LVM Guru
Hello James and All, For your information, here's the listing looks like: [root@localhost ~]# pvs PV VG Fmt Attr PSize PFree /dev/sda1 vg_hosting lvm2 a-- 1.82t0 /dev/sdb2 vg_hosting lvm2 a-- 1.82t0 /dev/sdc1 vg_hosting lvm2 a-- 1.82t0 /dev/sdd1 vg_hosting lvm2 a-- 1.82t0 [root@localhost ~]# lvs LV VG Attr LSize Pool Origin Data% Meta% Move Log Cpy%Sync Convert lv_home vg_hosting -wi-s- 7.22t lv_root vg_hosting -wi-a- 50.00g lv_swap vg_hosting -wi-a- 11.80g [root@localhost ~]# vgs VG #PV #LV #SN Attr VSize VFree vg_hosting 4 3 0 wz--n- 7.28t0 [root@localhost ~]# The problem is, when I do: [root@localhost ~]# vgchange -a y device-mapper: resume ioctl on failed: Invalid argument Unable to resume vg_hosting-lv_home (253:4) 3 logical volume(s) in volume group vg_hosting now active Only lv_root and lv_swap are activated; but lv_home is not, with the error above (on the vgchange command). How to activate the lv_home even with the 3 PVs left? The PV /dev/sdb2 is the one lost. I created it from a new blank hard disk and restore the VG using: # pvcreate --restorefile ... --uuid ... /dev/sdb2 # vgcfgrestore --file ... vg_hosting Regards, Khem On Sat, February 28, 2015 7:42 am, Khemara Lyn wrote: Dear James, Thank you for being quick to help. Yes, I could see all of them: # vgs # lvs # pvs Regards, Khem On Sat, February 28, 2015 7:37 am, James A. Peltier wrote: - Original Message - | Dear All, | | I am in desperate need for LVM data rescue for my server. | I have an VG call vg_hosting consisting of 4 PVs each contained in a | separate hard drive (/dev/sda1, /dev/sdb1, /dev/sdc1, and /dev/sdd1). | And this LV: lv_home was created to use all the space of the 4 PVs. | | Right now, the third hard drive is damaged; and therefore the third PV | (/dev/sdc1) cannot be accessed anymore. I would like to recover whatever | left in the other 3 PVs (/dev/sda1, /dev/sdb1, and /dev/sdd1). | | I have tried with the following: | | 1. Removing the broken PV: | | # vgreduce --force vg_hosting /dev/sdc1 | Physical volume /dev/sdc1 still in use | | # pvmove /dev/sdc1 | No extents available for allocation This would indicate that you don't have sufficient extents to move the data off of this disk. If you have another disk then you could try adding it to the VG and then moving the extents. | 2. Replacing the broken PV: | | I was able to create a new PV and restore the VG Config/meta data: | | # pvcreate --restorefile ... --uuid ... /dev/sdc1 | # vgcfgrestore --file ... vg_hosting | | However, vgchange would give this error: | | # vgchange -a y | device-mapper: resume ioctl on failed: Invalid argument | Unable to resume vg_hosting-lv_home (253:4) | 0 logical volume(s) in volume group vg_hosting now active There should be no need to create a PV and then restore the VG unless the entire VG is damaged. The configuration should still be available on the other disks and adding the new PV and moving the extents should be enough. | Could someone help me please??? | I'm in dire need for help to save the data, at least some of it if possible. Can you not see the PV/VG/LV at all? -- James A. Peltier IT Services - Research Computing Group Simon Fraser University - Burnaby Campus Phone : 778-782-6573 Fax : 778-782-3045 E-Mail : jpelt...@sfu.ca Website : http://www.sfu.ca/itservices Twitter : @sfu_rcg Powering Engagement Through Technology Build upon strengths and weaknesses will generally take care of themselves - Joyce C. Lock ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] Looking for a life-save LVM Guru
On Sat, 2015-02-28 at 07:25 +0700, Khemara Lyn wrote: I have tried with the following: 1. Removing the broken PV: # vgreduce --force vg_hosting /dev/sdc1 Physical volume /dev/sdc1 still in use Next time, try vgreduce --removemissing VG first. In my experience, any lvm command using --force often has undesirable side effects. Regarding getting the lvm functioning again, there is also a --partial option that is sometimes useful with the various vg* commands with a missing PV (see man lvm). And vgdisplay -v often regenerates missing metadata (as in getting a functioning lvm back). Steve ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] yum causing RPC timed out?
On 02/27/2015 04:16 PM, Dave Burns wrote: On Fri, Feb 27, 2015 at 12:41 PM, Stephen Harris li...@spuddy.org wrote: do_ypcall is a NIS error message. (Previous NIS was called yellow pages; the yp in do_ypcall is a reference to that). Maybe you have hosts: files nis in /etc/nsswitch.conf or something else that's causing the OS to want to talk to NIS. grep hosts /etc/nsswitch.conf hosts: files nis dns myhostname Maybe I should change to hosts: files dns nis myhostname ? You _DO_ have a problem with your NIS setup somewhere. It is a problem if yum expects it to be something else. NIS passes all the tests I have (ypcat various outputs what I expect). thanks, Yum is blissfully unaware of how the hostname is resolved. It just uses a system call and expects to get an answer within a reasonable time. The message do_ypcall: clnt_call: RPC: Timed out is coming from ypbind and indicates that NIS is not working as it should. Swapping the order of dns and nis in nsswitch.conf will probably get you going for this particular case, provided that dns is working. But the NIS problem is going to bite you sooner or later if you don't sort it out. -Thomas ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
[CentOS] Package group X Window System has disappeared
Hi, Until last week, I could install a CentOS 7 based desktop using the following approach: 1. Install minimal system. 2. yum groupinstall X Window System 3. yum install gdm gnome-classic-session gnome-terminal liberation-fonts 4. Install applications as needed. This morning, the package group X Window System seems to have disappeared. This is embarrassing. What happened? Niki -- Microlinux - Solutions informatiques 100% Linux et logiciels libres 7, place de l'église - 30730 Montpezat Web : http://www.microlinux.fr Mail : i...@microlinux.fr Tél. : 04 66 63 10 32 ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
[CentOS] Cyrus 2.4 and Centos6
Hi Folks, I'd like to install cyrus-imapd 2.4 in CentOS6. Found rpm cyrus 2.4 for CentOS6 on rpmseek. cyrus-imapd-2.4.17-30.1.x86_64.rpm But there are conflicts with postfix 2.6.6. Can I ignore this conflicts or is there a suitable version of ppstfix available? Thx Timothy ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] yum causing RPC timed out?
On Fri, Feb 27, 2015 at 11:57 AM, Thomas Eriksson thomas.eriks...@slac.stanford.edu wrote: This has nothing to do with yum. You are using NIS for name lookup and your NIS server is not responding. NIS is working fine, at least, for what I expect it to do. What makes you think NIS is involved? What does yum use NIS for? Is there a test command I could use to see whether NIS is working for yum? What names is yum looking up? Is Errno 12 a clue? I tried searching for (do_ypcall: clnt_call: rpc: timed out errno 12 ), got many confusing hits, nothing obviously helpful. thanks, Dave ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] OT: AF 4k sector drives with 512 emulation
On Fri, Feb 27, 2015 at 1:53 PM, Robert Arkiletian rob...@gmail.com wrote: Still have good quality older sata hardware raid cards that require 512 bytes/sector. As far as I know HD manufacturers are not making native 512 bytes/sector drives any more. 512n drives still exist, although they tend to be a bit smaller, 2TB or less. http://www.hgst.com/tech/techlib.nsf/techdocs/FD3F376DC2ECCE68882579D40082C393/$file/US7K4000_ds.pdf 4Kn drives are appearing now also. I don't expect these drives to be bootable except possibly by systems with UEFI firmware. It's also possible hardware RAID will reject them unless explicitly supported. http://www.hgst.com/tech/techlib.nsf/techdocs/29C9312E3B7D10CE88257D41000D8D16/$file/Ultrastar-7K6000-DS.pdf Some have better 512e emulation than others. Looking for some advice on which to avoid and which are recommended. Thanks. PS this is for a CentOS6 server. The emulation implementations don't come into play if the alignment is correct from the start. The better implementations have significantly less pathological behavior if alignment is wrong, but that's anecdotal, I don't have any empirical data available. But I'd say in any case you want it properly aligned. -- Chris Murphy ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] OT: AF 4k sector drives with 512 emulation
Chris Murphy wrote: snip The emulation implementations don't come into play if the alignment is correct from the start. The better implementations have significantly less pathological behavior if alignment is wrong, but that's anecdotal, I don't have any empirical data available. But I'd say in any case you want it properly aligned. You really, really want it properly aligned. We ran into that problem when we started getting 3TB drives a couple-three years ago. Proper alignment made a measured... trying to remember, but I think it was at *least* 20% difference in throughput. Alignment's easy: using parted (the user-hostile program), if you do go in with parted -a optimal /dev/drive, and do mkpart pri ext4 0.0GB 100% (for non-root drives, for example), it's aligned correctly. mark ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] OT: AF 4k sector drives with 512 emulation
On 2/27/2015 3:06 PM, m.r...@5-cent.us wrote: Alignment's easy: using parted (the user-hostile program), if you do go in with parted -a optimal /dev/drive, and do mkpart pri ext4 0.0GB 100% (for non-root drives, for example), it's aligned correctly. i found -a optimal to do weird things, and almost always complain.I just use -a none now, and specify partition start in (512b) sectors, like.. # parted /dev/sdc align none mklabel gpt mkpart pri 512s -1s don't start at 0, as thats where the MBR or GPT has to go.512 sectors is 256K bytes, which puts you on a erase block boundary with most SSD's as well as HD's.-1s is end of the disk. -- john r pierce 37N 122W somewhere on the middle of the left coast ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] Package group X Window System has disappeared
Try yum groupinstall Xfce or yum groupinstall MATE Desktop or yum groupinstall GNOME Desktop or yum groupinstall Server with GUI suomi On 02/27/2015 10:54 AM, Niki Kovacs wrote: Hi, Until last week, I could install a CentOS 7 based desktop using the following approach: 1. Install minimal system. 2. yum groupinstall X Window System 3. yum install gdm gnome-classic-session gnome-terminal liberation-fonts 4. Install applications as needed. This morning, the package group X Window System seems to have disappeared. This is embarrassing. What happened? Niki ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
