Re: [gentoo-user] Can't get a DVD to burn.
On Thu, 01 Apr 2010 16:12:30 -0500, Dale wrote: Then again, when I put a CD/DVD in, it doesn't mount it automatically anymore. I think that is a KDE4 thing. I may not have turned something on. I just haven't looked into it yet. That's a settings thing, turned off by default System Settings Advanced Removable Devices -- Neil Bothwick She's always late. Her ancestors arrived on the June flower. signature.asc Description: PGP signature
Re: [gentoo-user] Re: Duplicate identical Hard Disk
On Thu, 01 Apr 2010 19:47:09 -0700, walt wrote: However, if you want to leave both cables connected and change your BIOS to boot from 'sdb', you will need to edit some of the files on 'sdb', Check your BIOS first, some allow you to disable individual SATA ports, so you can disconnect the drive without pulling cables. -- Neil Bothwick To most people solutions mean finding the answers. But to chemists solutions are things that are still all mixed up. signature.asc Description: PGP signature
Re: [gentoo-user] OT:Choosing a filesystem
On Thu, 1 Apr 2010 21:09:30 +0200, meino.cra...@gmx.de wrote: So I have a lot of docs (specs of microcontrollers, howtos, programm and source code docs...etc) on my disk. This one part. Those are fairly normal files. Then: I often transer videos from my DVB-T-receiver/recorder to my harddisk to cut out the advertising and to transcode the videos to somethings better than ts (transport streams), These tend to be bigger, often in the GB range, so I'd use a separate filesystem for them with XFS, which handles large files better in my experience. Then I want something encrypted, either as a partition or as a files (carrying a encrypted fs), which I can copy to dvd and will be able to mount this dvd and use it without to have to copy the whole dvd first to harddisk before using it... Currently I am using encfs...(outdated?). What can I do use instead? ecryptfs does much the same job as encfs but is in the kernel. I'd say something like reiser3 for most areas and an XFS filesystem for the videos would be a good starting point. I would strongly recommend you use LVM and only set up volumes for what you need. That gives you extra space to play with and even experiment with different filesystems to see which work for you. -- Neil Bothwick The facts, although interesting, are irrelevant. signature.asc Description: PGP signature
Re: [gentoo-user] OT:Choosing a filesystem
Neil Bothwick n...@digimed.co.uk [10-04-02 10:52]: On Thu, 1 Apr 2010 21:09:30 +0200, meino.cra...@gmx.de wrote: So I have a lot of docs (specs of microcontrollers, howtos, programm and source code docs...etc) on my disk. This one part. Those are fairly normal files. Then: I often transer videos from my DVB-T-receiver/recorder to my harddisk to cut out the advertising and to transcode the videos to somethings better than ts (transport streams), These tend to be bigger, often in the GB range, so I'd use a separate filesystem for them with XFS, which handles large files better in my experience. Then I want something encrypted, either as a partition or as a files (carrying a encrypted fs), which I can copy to dvd and will be able to mount this dvd and use it without to have to copy the whole dvd first to harddisk before using it... Currently I am using encfs...(outdated?). What can I do use instead? ecryptfs does much the same job as encfs but is in the kernel. I'd say something like reiser3 for most areas and an XFS filesystem for the videos would be a good starting point. I would strongly recommend you use LVM and only set up volumes for what you need. That gives you extra space to play with and even experiment with different filesystems to see which work for you. -- Neil Bothwick The facts, although interesting, are irrelevant. Hi Neil, Thank you for your help! :) A question to LVM: As much as I know, LVM combines several partition to one big partition, and if one partition fails, at least other others of that volume are damaged, too. What is the advantage of using LVM and several small partitions instead of one in the size of the sum of the others and not using LVM? Best regards, mcc -- Please don't send me any Word- or Powerpoint-Attachments unless it's absolutely neccessary. - Send simply Text. See http://www.gnu.org/philosophy/no-word-attachments.html In a world without fences and walls nobody needs gates and windows.
Re: [gentoo-user] OT:Choosing a filesystem
On Fri, 2010-04-02 at 11:11 +0200, meino.cra...@gmx.de wrote: Neil Bothwick n...@digimed.co.uk [10-04-02 10:52]: On Thu, 1 Apr 2010 21:09:30 +0200, meino.cra...@gmx.de wrote: So I have a lot of docs (specs of microcontrollers, howtos, programm and source code docs...etc) on my disk. This one part. Those are fairly normal files. Then: I often transer videos from my DVB-T-receiver/recorder to my harddisk to cut out the advertising and to transcode the videos to somethings better than ts (transport streams), These tend to be bigger, often in the GB range, so I'd use a separate filesystem for them with XFS, which handles large files better in my experience. Then I want something encrypted, either as a partition or as a files (carrying a encrypted fs), which I can copy to dvd and will be able to mount this dvd and use it without to have to copy the whole dvd first to harddisk before using it... Currently I am using encfs...(outdated?). What can I do use instead? ecryptfs does much the same job as encfs but is in the kernel. I'd say something like reiser3 for most areas and an XFS filesystem for the videos would be a good starting point. I would strongly recommend you use LVM and only set up volumes for what you need. That gives you extra space to play with and even experiment with different filesystems to see which work for you. -- Neil Bothwick The facts, although interesting, are irrelevant. Hi Neil, Thank you for your help! :) A question to LVM: As much as I know, LVM combines several partition to one big partition, and if one partition fails, at least other others of that volume are damaged, too. What is the advantage of using LVM and several small partitions instead of one in the size of the sum of the others and not using LVM? Best regards, mcc The advantage is flexibility - you absolutely love LVM when you discover you have made a file system too small! Shrinking/enlarging/adding more storage etc is a real bonus. Downside as you mention is lose one disk and you may lose all - however I believe that sometimes the remaining data can be recovered. Also keep in mind that while small partitions can be a pain and waste space, normal corruption is limited to one partition, and physical data protection is better (i.e., when one partition fills up, others are safe) BillK
Re: [gentoo-user] OT:Choosing a filesystem
William Kenworthy bi...@iinet.net.au [10-04-02 11:32]: On Fri, 2010-04-02 at 11:11 +0200, meino.cra...@gmx.de wrote: Neil Bothwick n...@digimed.co.uk [10-04-02 10:52]: On Thu, 1 Apr 2010 21:09:30 +0200, meino.cra...@gmx.de wrote: So I have a lot of docs (specs of microcontrollers, howtos, programm and source code docs...etc) on my disk. This one part. Those are fairly normal files. Then: I often transer videos from my DVB-T-receiver/recorder to my harddisk to cut out the advertising and to transcode the videos to somethings better than ts (transport streams), These tend to be bigger, often in the GB range, so I'd use a separate filesystem for them with XFS, which handles large files better in my experience. Then I want something encrypted, either as a partition or as a files (carrying a encrypted fs), which I can copy to dvd and will be able to mount this dvd and use it without to have to copy the whole dvd first to harddisk before using it... Currently I am using encfs...(outdated?). What can I do use instead? ecryptfs does much the same job as encfs but is in the kernel. I'd say something like reiser3 for most areas and an XFS filesystem for the videos would be a good starting point. I would strongly recommend you use LVM and only set up volumes for what you need. That gives you extra space to play with and even experiment with different filesystems to see which work for you. -- Neil Bothwick The facts, although interesting, are irrelevant. Hi Neil, Thank you for your help! :) A question to LVM: As much as I know, LVM combines several partition to one big partition, and if one partition fails, at least other others of that volume are damaged, too. What is the advantage of using LVM and several small partitions instead of one in the size of the sum of the others and not using LVM? Best regards, mcc The advantage is flexibility - you absolutely love LVM when you discover you have made a file system too small! Shrinking/enlarging/adding more storage etc is a real bonus. Downside as you mention is lose one disk and you may lose all - however I believe that sometimes the remaining data can be recovered. Also keep in mind that while small partitions can be a pain and waste space, normal corruption is limited to one partition, and physical data protection is better (i.e., when one partition fills up, others are safe) BillK Hi Bill, tahnks for your reply! :) Seems that that, what I thought to have remembered of LVM seems to be still correct. mcc -- Please don't send me any Word- or Powerpoint-Attachments unless it's absolutely neccessary. - Send simply Text. See http://www.gnu.org/philosophy/no-word-attachments.html In a world without fences and walls nobody needs gates and windows.
Re: [gentoo-user] OT:Choosing a filesystem
On Fri, 2 Apr 2010 11:11:30 +0200, meino.cra...@gmx.de wrote: A question to LVM: As much as I know, LVM combines several partition to one big partition, and if one partition fails, at least other others of that volume are damaged, too. It can be used that way, but you have only one disk, so you would create a single physical volume from a large partition on that disk and then use LVM to create individual logical volumes within it. What is the advantage of using LVM and several small partitions instead of one in the size of the sum of the others and not using LVM? Flexibility and convenience. No single filesystem is right for all of your needs, with LVM you can use XFS where it is best suited and something else elsewhere, and you can resize and reorganise your volumes without needing to repartition the drive. I have a few hundred GB unused on my volume group, so I can add volumes or resize existing ones in seconds with minimal effort and no downtime. Just one note of caution, XFS filesystems cannot be shrunk, although they are easy to grow, so make any XFS volumes no larger than your current needs. That advice applies to all your volumes, because growing is easier and faster than shrinking, but doubly so to XFS. -- Neil Bothwick Better to understand a little than to misunderstand a lot. signature.asc Description: PGP signature
Re: [gentoo-user] OT:Choosing a filesystem
Neil Bothwick n...@digimed.co.uk [10-04-02 12:48]: On Fri, 2 Apr 2010 11:11:30 +0200, meino.cra...@gmx.de wrote: A question to LVM: As much as I know, LVM combines several partition to one big partition, and if one partition fails, at least other others of that volume are damaged, too. It can be used that way, but you have only one disk, so you would create a single physical volume from a large partition on that disk and then use LVM to create individual logical volumes within it. What is the advantage of using LVM and several small partitions instead of one in the size of the sum of the others and not using LVM? Flexibility and convenience. No single filesystem is right for all of your needs, with LVM you can use XFS where it is best suited and something else elsewhere, and you can resize and reorganise your volumes without needing to repartition the drive. I have a few hundred GB unused on my volume group, so I can add volumes or resize existing ones in seconds with minimal effort and no downtime. Just one note of caution, XFS filesystems cannot be shrunk, although they are easy to grow, so make any XFS volumes no larger than your current needs. That advice applies to all your volumes, because growing is easier and faster than shrinking, but doubly so to XFS. -- Neil Bothwick Better to understand a little than to misunderstand a lot. Hi Neil, only to be sure to have understood everything correctly: Suggestion is to create for example one root partition and a swap partion. And I will create on big rest of the disk-partition. The last one will be subdivided with LVM into portions as needed. Since the last big partition is big due to physical reasons (not for logical one): What will happen, if -- for example -- one portion will be not unmounted cleanly and while booting/checking fails to recover? Are all others damaged/lost? Best regards, mcc -- Please don't send me any Word- or Powerpoint-Attachments unless it's absolutely neccessary. - Send simply Text. See http://www.gnu.org/philosophy/no-word-attachments.html In a world without fences and walls nobody needs gates and windows.
Re: [gentoo-user] OT:Choosing a filesystem
On Fri, 02 Apr 2010 11:20:02 +0200, meino.cra...@gmx.de wrote about Re: [gentoo-user] OT:Choosing a filesystem: [snip] A question to LVM: As much as I know, LVM combines several partition to one big partition, and if one partition fails, at least other others of that volume are damaged, too. Disks fail. Sectors fail. Partitions do not fail. Logical volumes do not fail. If your disk fails you lose *all* partitions on it. If some sectors fail, the file(s) backed by those sectors will be corrupted -- regardless of filesystem type. If the defective sectors back a filesystem's superblock or other infrastructure, you could well lose the filesystem; but most modern filesystems keep redundant copies of their infrastructure, and fsck can sometimes recover. What is the advantage of using LVM and several small partitions instead of one in the size of the sum of the others and not using LVM? LVM provides immense flexibility in creating, deleting and expanding filesystems. Once you get used to using LVM, which is not difficult, you will never go back to partitions. -- Regards, Dave [RLU #314465] == dwn...@ntlworld.com (David W Noon) == signature.asc Description: PGP signature
Re: [gentoo-user] Duplicate identical Hard Disk
On Thu, Apr 1, 2010 at 10:09 PM, Mark Knecht markkne...@gmail.com wrote: With only 2 disks I personally think you're on the right path. With 3 disks I'm personally planning on RAID1 using 3 copies. ... My comment about RAID was that I am learning the hard (alas expensive) way that not all disks can actually do RAID, at least not Linux software RAID, and really be usable. From what I understand of software RAID in linux, it works on block devices, not disks. This means if some endeavoring soul was brave enough to RAID even partitions on a device, it would work as normal. Perhaps you mean that not all properly functioning disks can do RAID? What sort of trouble are you running into? I've successfully deployed both RAID1 and RAID5 on my home media server for quite some time now. While the initial time investment in reading documentation was considerable, since that time I've had no cause for trouble. I keep smartmontools looking at the array member disks and regularly read through monthly smart reports of my drives. Also, if you have three disks, why not go for RAID5? It is much quicker and I believe you'll end up with more space. It is a bit of a pain to get mdadm to convert your RAID1 to a RAID5, but it is doable. DC
Re: [gentoo-user] OT:Choosing a filesystem
On Fri, 2 Apr 2010 13:04:53 +0200, meino.cra...@gmx.de wrote: only to be sure to have understood everything correctly: Suggestion is to create for example one root partition and a swap partion. And I will create on big rest of the disk-partition. The last one will be subdivided with LVM into portions as needed. Yes. Since the last big partition is big due to physical reasons (not for logical one): What will happen, if -- for example -- one portion will be not unmounted cleanly and while booting/checking fails to recover? Are all others damaged/lost? No, because the failure you describe is at the filesystem level. Even the volume containing that filesystem will retain integrity, only the filesystem itself will be corrupted. As you have left free space on the volume group, you can just create a new volume, format it and copy over everything you can recover from the broken filesystem before deleting it. signature.asc Description: PGP signature
Re: [gentoo-user] OT:Choosing a filesystem
Neil Bothwick n...@digimed.co.uk [10-04-02 14:08]: On Fri, 2 Apr 2010 13:04:53 +0200, meino.cra...@gmx.de wrote: only to be sure to have understood everything correctly: Suggestion is to create for example one root partition and a swap partion. And I will create on big rest of the disk-partition. The last one will be subdivided with LVM into portions as needed. Yes. Since the last big partition is big due to physical reasons (not for logical one): What will happen, if -- for example -- one portion will be not unmounted cleanly and while booting/checking fails to recover? Are all others damaged/lost? No, because the failure you describe is at the filesystem level. Even the volume containing that filesystem will retain integrity, only the filesystem itself will be corrupted. As you have left free space on the volume group, you can just create a new volume, format it and copy over everything you can recover from the broken filesystem before deleting it. Hi Neil, yes, sounds good, very good. Last question: How heavy is the performance impact of such a setup ? -- Please don't send me any Word- or Powerpoint-Attachments unless it's absolutely neccessary. - Send simply Text. See http://www.gnu.org/philosophy/no-word-attachments.html In a world without fences and walls nobody needs gates and windows.
Re: [gentoo-user] OT:Choosing a filesystem
On Freitag 02 April 2010, meino.cra...@gmx.de wrote: Neil Bothwick n...@digimed.co.uk [10-04-02 14:08]: On Fri, 2 Apr 2010 13:04:53 +0200, meino.cra...@gmx.de wrote: only to be sure to have understood everything correctly: Suggestion is to create for example one root partition and a swap partion. And I will create on big rest of the disk-partition. The last one will be subdivided with LVM into portions as needed. Yes. Since the last big partition is big due to physical reasons (not for logical one): What will happen, if -- for example -- one portion will be not unmounted cleanly and while booting/checking fails to recover? Are all others damaged/lost? No, because the failure you describe is at the filesystem level. Even the volume containing that filesystem will retain integrity, only the filesystem itself will be corrupted. As you have left free space on the volume group, you can just create a new volume, format it and copy over everything you can recover from the broken filesystem before deleting it. Hi Neil, yes, sounds good, very good. Last question: How heavy is the performance impact of such a setup ? seriously lvm sounds nice. But it isn't. It easily breaks. You want a save setup? Go raid5 or raid6. As a bonus - you can get more space if you need it by just adding another disk. And you are not depending on some complex stuff to get it working.
Re: [gentoo-user] OT:Choosing a filesystem
On Fri, 2010-04-02 at 14:45 +0200, Volker Armin Hemmann wrote: On Freitag 02 April 2010, meino.cra...@gmx.de wrote: Neil Bothwick n...@digimed.co.uk [10-04-02 14:08]: On Fri, 2 Apr 2010 13:04:53 +0200, meino.cra...@gmx.de wrote: only to be sure to have understood everything correctly: Suggestion is to create for example one root partition and a swap partion. And I will create on big rest of the disk-partition. The last one will be subdivided with LVM into portions as needed. Yes. Since the last big partition is big due to physical reasons (not for logical one): What will happen, if -- for example -- one portion will be not unmounted cleanly and while booting/checking fails to recover? Are all others damaged/lost? No, because the failure you describe is at the filesystem level. Even the volume containing that filesystem will retain integrity, only the filesystem itself will be corrupted. As you have left free space on the volume group, you can just create a new volume, format it and copy over everything you can recover from the broken filesystem before deleting it. Hi Neil, yes, sounds good, very good. Last question: How heavy is the performance impact of such a setup ? seriously lvm sounds nice. But it isn't. It easily breaks. You want a save setup? Go raid5 or raid6. As a bonus - you can get more space if you need it by just adding another disk. And you are not depending on some complex stuff to get it working. My experience is lvm itself is quite robust and very low impact on performance. More reliable than linux software raid at least (well the raid 0 that I was using: ) - never had a problem I could trace to lvm. The only thing thats affected lvm for me were hardware errors (disk died). My experience was with raid 0, while the higher raid redundancy will shift the reliability figures back the other way. Its really down to space and management or losing space to redundancy. Yes its an extra layer on top of the raw hardware (but so is raid really) so its the flexibility thats important. BillK
[gentoo-user] gentoo-wiki.com
Hallo, Someone knows what's up with gentoo-wiki.com? I get a Connection to 207.98.216.138 Failed and downforeveryoneorjustme.com reports It's not just you! http://gentoo-wiki.com looks down from here. Regards, -- Dan Johansson, http://www.dmj.nu *** This message is printed on 100% recycled electrons! ***
Re: [gentoo-user] gentoo-wiki.com
On Fri, Apr 2, 2010 at 8:24 AM, Dan Johansson dan.johans...@dmj.nu wrote: Hallo, Someone knows what's up with gentoo-wiki.com? I get a Connection to 207.98.216.138 Failed and downforeveryoneorjustme.com reports It's not just you! http://gentoo-wiki.com looks down from here. Looks like his other website (gentoo-portage.com) is also down. He hasn't posted anything about it on his Twitter account. http://twitter.com/mikevalstar
Re: [gentoo-user] gentoo-wiki.com
On Fri, Apr 02, 2010 at 09:34:12AM -0500, Paul Hartman wrote: On Fri, Apr 2, 2010 at 8:24 AM, Dan Johansson dan.johans...@dmj.nu wrote: Hallo, Someone knows what's up with gentoo-wiki.com? I get a Connection to 207.98.216.138 Failed and downforeveryoneorjustme.com reports It's not just you! http://gentoo-wiki.com looks down from here. Looks like his other website (gentoo-portage.com) is also down. He hasn't posted anything about it on his Twitter account. http://twitter.com/mikevalstar The machine doesn't even respond to ping… pts/1:erdun...@alice:/home/erdunand % ping gentoo-wiki.com [16:39] PING gentoo-wiki.com (207.98.216.138) 56(84) bytes of data. ^C --- gentoo-wiki.com ping statistics --- 12 packets transmitted, 0 received, 100% packet loss, time 11000ms I didn't know about downforeveryoneorjustme.com It gives me the same answer though. Do you know how they test if the computer is up ? -- Éric Valérian DUNAND erdunand[at]gmail[dot]com
Re: [gentoo-user] OT:Choosing a filesystem
On Freitag 02 April 2010, William Kenworthy wrote: My experience was with raid 0, while the higher raid redundancy will shift the reliability figures back the other way. wrong. Raid0 is meant for 0 redudancy and reduced reliability for more performance. Before you start talking about Raid and redundandy you should read about raid levels and what they mean first.
[gentoo-user] language
Hi all, Yesterday I gave a presentation with OOo-3.2 Impress with my laptop (xfce4, thunar). I used a video projector Dell, which worked fine. However, this made my language change from french to english in many of my packages. Right click on desktop and the showed window is in english; the same with a click on the icons on it. (their name is also in english) The menu bars are sometimes in french (thunar,firefox, thunderbird, OOo, skype) sometimes not (gimp, vlc, gedit, etc.) I don't know what happened, and in spite of serching in many directions , I could not find a solution. How could I resolve this problem? Many thanks for a help Roger
Re: [gentoo-user] Duplicate identical Hard Disk
On Fri, Apr 2, 2010 at 5:02 AM, Dan Cowsill danthe...@gmail.com wrote: On Thu, Apr 1, 2010 at 10:09 PM, Mark Knecht markkne...@gmail.com wrote: With only 2 disks I personally think you're on the right path. With 3 disks I'm personally planning on RAID1 using 3 copies. ... My comment about RAID was that I am learning the hard (alas expensive) way that not all disks can actually do RAID, at least not Linux software RAID, and really be usable. From what I understand of software RAID in linux, it works on block devices, not disks. This means if some endeavoring soul was brave enough to RAID even partitions on a device, it would work as normal. Perhaps you mean that not all properly functioning disks can do RAID? What sort of trouble are you running into? I've successfully deployed both RAID1 and RAID5 on my home media server for quite some time now. While the initial time investment in reading documentation was considerable, since that time I've had no cause for trouble. I keep smartmontools looking at the array member disks and regularly read through monthly smart reports of my drives. Also, if you have three disks, why not go for RAID5? It is much quicker and I believe you'll end up with more space. It is a bit of a pain to get mdadm to convert your RAID1 to a RAID5, but it is doable. DC Good questions: 1) Yes, you can RAID partitions of drives. That's what I'm doing. You can look at the Gentoo RAID/LVM Install guide to see an example of using RAID0 and RAID1 on a single drive. http://www.gentoo.org/doc/en/gentoo-x86+raid+lvm2-quickinstall.xml 2) I'm certainly not suggesting RAID doesn't work. It's just not working for me, either due to new motherboard hardware or due to the drives themselves. I'm currently betting it's the drives. The background info, without getting too deeply into it, is that if the drive supports SMART and SMART is enabled, then when doing RAID you need guaranteed Time Limited Error Recovery (TLER) to ensure (I think) that SMART works doesn't get in the way of the drive responding in the appropriate amount of time or else the drive will fall out of the RAID array. Turns out the WD (according to different mailing list and forums I've been looking at) has removed TLER on almost all of their Green drive and some/many/most of the Blue and Black series. They are supporting this in the RE drives though of which I've obtained two. They are smaller and more expensive, but built for RAID, so I'm going to try them out next. http://en.wikipedia.org/wiki/Time-Limited_Error_Recovery 3) As I understand the subject you are correct about size and speed, but a 3-disk RAID5 array can stand 1 disk failing whereas a 3-disk RAID1 array can stand 2 disks failing. For this app (MythTV and seldom used backup server) I don't need speed and size isn't a huge issue so I chose 3-disk RAID1. (Note that the HTPC case I'm using supports up to 3 drives only.) Because multiple drives purchased at the same time generally come from the same production lot there's an additional danger that if one drive fails then one more (or all) could fail at the same time so I'm protecting myself against that. Again, this is very specific to my current needs which is really to back up another machine which will be RAID0 as it needs more disk I/O speed to support 12 processor cores. As always, I'm certainly interested in info and ideas on this subject, most especially now when I'm buying and building. Cheers, Mark
Re: [gentoo-user] gentoo-wiki.com
On Friday 02 April 2010 16.50:56 erdun...@gmail.com wrote: On Fri, Apr 02, 2010 at 09:34:12AM -0500, Paul Hartman wrote: On Fri, Apr 2, 2010 at 8:24 AM, Dan Johansson dan.johans...@dmj.nu wrote: Hallo, Someone knows what's up with gentoo-wiki.com? I get a Connection to 207.98.216.138 Failed and downforeveryoneorjustme.com reports It's not just you! http://gentoo-wiki.com looks down from here. Looks like his other website (gentoo-portage.com) is also down. He hasn't posted anything about it on his Twitter account. http://twitter.com/mikevalstar The machine doesn't even respond to ping… pts/1:erdun...@alice:/home/erdunand % ping gentoo-wiki.com [16:39] PING gentoo-wiki.com (207.98.216.138) 56(84) bytes of data. ^C --- gentoo-wiki.com ping statistics --- 12 packets transmitted, 0 received, 100% packet loss, time 11000ms I didn't know about downforeveryoneorjustme.com It gives me the same answer though. Do you know how they test if the computer is up ? No, I have no idea on how they do it. -- Dan Johansson, http://www.dmj.nu *** This message is printed on 100% recycled electrons! ***
Re: [gentoo-user] Can't get a DVD to burn.
Neil Bothwick wrote: On Thu, 01 Apr 2010 16:12:30 -0500, Dale wrote: Then again, when I put a CD/DVD in, it doesn't mount it automatically anymore. I think that is a KDE4 thing. I may not have turned something on. I just haven't looked into it yet. That's a settings thing, turned off by default System Settings Advanced Removable Devices It is mounting it now. I can see it when I type in mount. I figured it was turned off somewhere. Now to get me a little icon on the desktop so I can open it. lol I removed KDE3 last night. I'm sort of getting used to KDE4 now. Just a few little quirks here and there. I fell asleep last night so I will try the backup thing as soon as I can. Dale :-) :-)
Re: [gentoo-user] OT:Choosing a filesystem
Neil Bothwick wrote: On Thu, 1 Apr 2010 21:09:30 +0200, meino.cra...@gmx.de wrote: Then: I often transer videos from my DVB-T-receiver/recorder to my harddisk to cut out the advertising and to transcode the videos to somethings better than ts (transport streams), These tend to be bigger, often in the GB range, so I'd use a separate filesystem for them with XFS, which handles large files better in my experience. He mentioned in one of the first few posts that he regularly has hard shutdowns. I took that as pulling the plug. The last bit of experience I had with XFS, it does not like that sort of thing to happen. Each time I had a hard shutdown, I had to reinstall the OS. Has XFS changed so that power loss is not s problem or should he not use this after all? Would hate for the OP to use XFS if it has not improved in that area. Dale :-) :-)
Re: [gentoo-user] OT:Choosing a filesystem
On Friday 02 April 2010 16:28:43 Dale wrote: Neil Bothwick wrote: On Thu, 1 Apr 2010 21:09:30 +0200, meino.cra...@gmx.de wrote: Then: I often transer videos from my DVB-T-receiver/recorder to my harddisk to cut out the advertising and to transcode the videos to somethings better than ts (transport streams), These tend to be bigger, often in the GB range, so I'd use a separate filesystem for them with XFS, which handles large files better in my experience. He mentioned in one of the first few posts that he regularly has hard shutdowns. I took that as pulling the plug. The last bit of experience I had with XFS, it does not like that sort of thing to happen. Each time I had a hard shutdown, I had to reinstall the OS. Has XFS changed so that power loss is not s problem or should he not use this after all? Would hate for the OP to use XFS if it has not improved in that area. XFS was ropey in its early days. I had to re-install a partition once too (on a laptop!). It is much more stable now (have not had a problem in the last 4+ years). reiserfs is absolutely bullet proof here, with hundreds of crashes on a machine that had bad memory (like twice or three times a day I would have to pull the plug, for months on end until I isolated the error on a memory module). reiser4 seems to be on a class of its own in terms of performance. Perhaps not as forgiving on hard crashes as the reiserfs? Not sure. It's early days yet on this machine, but I have only praises for it so far. I just hope they incorporate it in the kernel so that I don't have to manually patch it every time. This is just my 2c's - so YMMV. -- Regards, Mick signature.asc Description: This is a digitally signed message part.
Re: [gentoo-user] Re: Duplicate identical Hard Disk
On 04/02/10 09:42, Neil Bothwick wrote: On Thu, 01 Apr 2010 19:47:09 -0700, walt wrote: However, if you want to leave both cables connected and change your BIOS to boot from 'sdb', you will need to edit some of the files on 'sdb', Check your BIOS first, some allow you to disable individual SATA ports, so you can disconnect the drive without pulling cables. -- Neil Bothwick Good suggestion, but I'm not sure my motherboard BIOS supports it. I have GA-MA790GP-DS4H motherboard, reading from the manual: it has OnChip SATA Type (SATA2_0 ~ SATA2_3 connectors) Mode: Native IDE RAID AHCI - Advanced Host Controller to enable advanced Serial ATA features such as Native Command Queuing and hot plug. Is it the one AHCI? I've never used it. I'm more interested in configuring it as an auxiliary drive sdb to serve as a bootable backup. The box will be installed in a remote location and I'll have an ssh access to it. The box is running in a medical clinic and I'm mostly concern that after the emerge if something happens, I want the user to be able to boot grub from second drive, and it will be sdb (hd1); but during normal operation, when running from sda I want to backup some application files to it so sdb stays current. -- Joseph
Re: [gentoo-user] OT:Choosing a filesystem
On Thu, Apr 1, 2010 at 10:09 PM, meino.cra...@gmx.de wrote: [ ... snip ... ] So I have a lot of docs (specs of microcontrollers, howtos, programm and source code docs...etc) on my disk. This one part. I've seen that nobody mentioned JFS yet... :) In some benchmarks the best FS for most tasks is either XFS and JFS, but it seems that JFS has less CPU and memory usage. So for small and medium files I would say it's best. (I think it was on Tom's Hardware site?) I'll also describe my history on the issue: initially I've only used ReiserFS until something (not the hard drive) just snapped and I've almost lost all my data. At that moment I've migrated to Ext3. But Ext3 has the problem of needing constant (usually once a moth) checking (I know this is optional or tunable but it seems it is recommended) which for large file systems takes incredibly long (60GB HDD takes about 2 or 3 minutes... So imagine what would to to 1TB...) So I got angry again and moved to JFS... And I'm using JFS for about two years without major incidents... (Only once I've lost the contents of a configuration file due to a power interruption but this is because of the editor.) So as a conclusion for this task I would recommend JFS (I also have 200GB of documentation which covers about 100 thousand files I guess.) Also see at the end for my notes on journaled file systems. Then: I often transer videos from my DVB-T-receiver/recorder to my harddisk to cut out the advertising and to transcode the videos to somethings better than ts (transport streams), This is another part. Although JFS could handle this, maybe a file system specially designed for this would do best: Ext4 with it's extent feature. (But be aware that by just using a file system is not enough... The software also has to be specially crafted if you want high performance. Just see the `fallocate` and `fadvise` system calls.) Then I plan to have two roots this time: One to experiment with and one good and stable-version which is used/updated/... strictly as recommended. Filesizes and usage do vary here...take a look at your own roots ;))) :) This sounds like my setup: 160GB HDD from my laptop has the following layout: * GPT partition table (not MBR) -- this gives me more partitions without needing the extended partition feature of MBR; * 2 boot partitions of 512MB (maybe 1GB would have been better) -- one for current usage (Grub 0.97 with GPT patches) and one for experimentation; these are Ext2 for safety and compatibility; * 3 root partitions of 4GB (I should have made them 8GB) -- one for the current operating system, and two for future upgrades / experimentation; currently JFS and maybe also so in the future; * 1 swap of 8GB (encrypted with random password with the help of dm-crypt); * rest of the HDD as one big partition with LVM; (large extents 256MB); * from the LVM I have partitions for personal data (/home) and other things -- everything is JFS; Then I want something encrypted, either as a partition or as a files (carrying a encrypted fs), which I can copy to dvd and will be able to mount this dvd and use it without to have to copy the whole dvd first to harddisk before using it... Currently I am using encfs...(outdated?). What can I do use instead? This is for personal things like letters, photos, texts ... etc. Files vary from some kb up to about 2GByte (guessed). Most of them smaller than 200MByte As someone noted maybe EncryptFS (in kernel one) would be better... (It's an install option in Ubuntu so I would say it's mature enough.) But for this encrypted purpose I would use dm-crypt with `aes-xts-essiv:sha256` encryption. (In the past I've used LoopAES but I had some minor issues with kernel building as it's not in the vanilla kernel...) Last thing: I have a lot iof copies of code from svn repositories because I like to have the bleeding edge of some projects (do you know the new Blender 2.50??? :O) I also have a lot of repositories on JFS and everything works nice. This implies a lot of compile work. This will be the only case where files are created as often as read. For temporary folders while compiling I would recommend to instruct your build scripts to build inside /tmp where you have tmpfs mounted... It's blazingly fast... And some notes about journaled file systems: they journal meta-data (that is file creation, deletion, rename, etc), not data (that is the contents)... (Of course there are a few (Ext3 maybe?) file systems that have the option to also journal data...) What does this mean: well when you edit a file and save it and then cut the power, the file still exists (the meta-data), but the contents could (and usually is) wrong: either no content (like I've encountered once with JFS), either mixed content (old and new)... So the fineprint here is: no journaled file system is safe... They are all safe if you
Re: [gentoo-user] Can't get a DVD to burn.
On 4/1/2010 4:38 PM, Paul Hartman wrote: On Thu, Apr 1, 2010 at 10:02 AM, Joerg Schilling joerg.schill...@fokus.fraunhofer.de wrote: Your media was either accepted after several tries by the drive for unknown reasons and is now usable in general again or you are observing a problem caused by hald. Note that hald does not care about the CD/DVD/BD Writing process and interrupts it. This is why hald may cause any strange result. Would a HAL preprobe FDI like this prevent it from interfering with burning? ?xml version=1.0 encoding=UTF-8? deviceinfo version=0.2 device match key=storage.drive_type string=cdrom merge key=info.ignore type=booltrue/merge /match /device /deviceinfo Bad enough you mentioned HAL in a conversation with Dale. Now there's XML involved. This thread is officially never going to end. --Mike
Re: [gentoo-user] OT:Choosing a filesystem
On Thu, Apr 1, 2010 at 10:47 AM, meino.cra...@gmx.de wrote: Hi, I googled down some - often fairly outdated - texts about the best filesystem fpr a Linux box. Other texts focussed on uses, which do not aplly to me: Fileservers, webservers, database machines etc. Wnat I want is a fast and stable (!) filesystem for a desktop PC with one 1TByte harddisk. Since using Gentoo and a lot of sources I do compile very often bigger things (blender-2.50 for example). Another thing: Due to my experimenting it is possible that I have to reboot hard, which means, the filesystem will be unmounted not cleanly (dirty do to say...;) The choosen filesystem should be good in recovering such thing. I am currently using a vanilla 2.6.32.10 kernel. The question, what remains is: What choose should I make? I thank you very much in advance for any help! Best regards, mcc This doesn't address why you would choose one over another but it was a recent view of Reiser4 vs a couple of others. http://www.phoronix.com/scan.php?page=articleitem=reiser4_benchmarksnum=1 I'm way behind. I haven't even tried ext4 yet! Good luck, Mark
Re: [gentoo-user] OT:Choosing a filesystem
Mick wrote: On Friday 02 April 2010 16:28:43 Dale wrote: Neil Bothwick wrote: On Thu, 1 Apr 2010 21:09:30 +0200, meino.cra...@gmx.de wrote: Then: I often transer videos from my DVB-T-receiver/recorder to my harddisk to cut out the advertising and to transcode the videos to somethings better than ts (transport streams), These tend to be bigger, often in the GB range, so I'd use a separate filesystem for them with XFS, which handles large files better in my experience. He mentioned in one of the first few posts that he regularly has hard shutdowns. I took that as pulling the plug. The last bit of experience I had with XFS, it does not like that sort of thing to happen. Each time I had a hard shutdown, I had to reinstall the OS. Has XFS changed so that power loss is not s problem or should he not use this after all? Would hate for the OP to use XFS if it has not improved in that area. XFS was ropey in its early days. I had to re-install a partition once too (on a laptop!). It is much more stable now (have not had a problem in the last 4+ years). reiserfs is absolutely bullet proof here, with hundreds of crashes on a machine that had bad memory (like twice or three times a day I would have to pull the plug, for months on end until I isolated the error on a memory module). reiser4 seems to be on a class of its own in terms of performance. Perhaps not as forgiving on hard crashes as the reiserfs? Not sure. It's early days yet on this machine, but I have only praises for it so far. I just hope they incorporate it in the kernel so that I don't have to manually patch it every time. This is just my 2c's - so YMMV. I haven't used XFS in several years. I was hoping that it had improved. I just wanted to make sure that it had improved and that it would be safe considering the OP has hard shutdowns. I wouldn't want the OP to use it if he would lose data the first time he had a hard shutdown. That would pretty much suck. I agree on reiserfs tho. I use it a lot here as well. It works very well for me. Dale :-) :-)
Re: [gentoo-user] Can't get a DVD to burn.
Neil Bothwick wrote: On Thu, 01 Apr 2010 16:12:30 -0500, Dale wrote: Then again, when I put a CD/DVD in, it doesn't mount it automatically anymore. I think that is a KDE4 thing. I may not have turned something on. I just haven't looked into it yet. That's a settings thing, turned off by default System Settings Advanced Removable Devices I spoke to soon. It worked once tho. I can mount it manually tho. Maybe I already mounted it manually and forgot? I already had a DVD in there. I'm getting to old. lol Am I supposed to have anything in fstab for KDE4 and the DVD? I don't have currently and didn't for KDE3 either. I read somewhere that KDE4 did this differently tho. Dale :-) :-)
Re: [gentoo-user] Duplicate identical Hard Disk
On 04/02/10 07:59, Mark Knecht wrote: Good questions: 1) Yes, you can RAID partitions of drives. That's what I'm doing. You can look at the Gentoo RAID/LVM Install guide to see an example of using RAID0 and RAID1 on a single drive. http://www.gentoo.org/doc/en/gentoo-x86+raid+lvm2-quickinstall.xml 2) I'm certainly not suggesting RAID doesn't work. It's just not working for me, either due to new motherboard hardware or due to the drives themselves. I'm currently betting it's the drives. The background info, without getting too deeply into it, is that if the drive supports SMART and SMART is enabled, then when doing RAID you need guaranteed Time Limited Error Recovery (TLER) to ensure (I think) that SMART works doesn't get in the way of the drive responding in the appropriate amount of time or else the drive will fall out of the RAID array. Turns out the WD (according to different mailing list and forums I've been looking at) has removed TLER on almost all of their Green drive and some/many/most of the Blue and Black series. They are supporting this in the RE drives though of which I've obtained two. They are smaller and more expensive, but built for RAID, so I'm going to try them out next. http://en.wikipedia.org/wiki/Time-Limited_Error_Recovery 3) As I understand the subject you are correct about size and speed, but a 3-disk RAID5 array can stand 1 disk failing whereas a 3-disk RAID1 array can stand 2 disks failing. For this app (MythTV and seldom used backup server) I don't need speed and size isn't a huge issue so I chose 3-disk RAID1. (Note that the HTPC case I'm using supports up to 3 drives only.) Because multiple drives purchased at the same time generally come from the same production lot there's an additional danger that if one drive fails then one more (or all) could fail at the same time so I'm protecting myself against that. Again, this is very specific to my current needs which is really to back up another machine which will be RAID0 as it needs more disk I/O speed to support 12 processor cores. As always, I'm certainly interested in info and ideas on this subject, most especially now when I'm buying and building. Cheers, Mark I'm not even sure if any RAID is a solution for me. My situation is a follow, I've configured Gentoo box for a medical clinic and I'll administer it reportedly via ssh. One server running Windows XP in VirtualBox and some other Linux programs. Server is a quad core ADM and has two identical SATA drives about 600GB There is another smaller box (Intel ATOM CPU) running Gentoo, this box runs Asterisk and VirtualBox as well, it is a server backup. If something happens to mains Server, user just presses Scroll Lock twice (KVM), logs in into smaller and runs the main program from there. So I have a backup in place. I just want to utilize the second drive of the main server. I'm mostly concerns about the problems with emerge, not the hard drive failure (I've plenty of backups). So, I think the best option for me is to just mirror the first HD and modify it to use it a sdb. I'm just making steps I need to do: 1.) Boot from external CD dd if=/dev/sda of=/dev/sdb 2.) modify (add to) grub.conf on sda #title boot sda current title=1st HD sda Kernel Current root (hd0,0) kernel /boot/kernel-current root=/dev/sda3 #title boot sdb current title=2nd HD sdb Kernel Current root (hd1,0) kernel /boot/kernel-current root=/dev/sdb3 3.) Modify fstab Walt has mentioned to use rdev but reading man pages it is only i386, and all my boxes running amd64 (x86_64). What else did I miss. -- Joseph
[gentoo-user] Re: Duplicate identical Hard Disk
On 04/02/2010 07:59 AM, Mark Knecht wrote: 1) Yes, you can RAID partitions of drives. That's what I'm doing. You can look at the Gentoo RAID/LVM Install guide to see an example of using RAID0 and RAID1 on a single drive. http://www.gentoo.org/doc/en/gentoo-x86+raid+lvm2-quickinstall.xml Very useful post, thanks. I'm just nitpicking here about the use of RAID0 on a single physical drive, which doesn't seem useful IIUC. RAID0 alternates stripes between two physical drives so that one disk can be reading/writing while the other disk's heads are seeking, no? If that is the case, then single-disk RAID0 will just be thrashing the heads back and forth between stripes on different partitions, making more work for itself than necessary. If I'm wrong about this, someone please correct me.
[gentoo-user] Re: Duplicate identical Hard Disk
On 04/02/2010 08:46 AM, Joseph wrote: On 04/02/10 09:42, Neil Bothwick wrote: On Thu, 01 Apr 2010 19:47:09 -0700, walt wrote: However, if you want to leave both cables connected and change your BIOS to boot from 'sdb', you will need to edit some of the files on 'sdb', Check your BIOS first, some allow you to disable individual SATA ports, so you can disconnect the drive without pulling cables. -- Neil Bothwick Good suggestion, but I'm not sure my motherboard BIOS supports it. I have GA-MA790GP-DS4H motherboard, reading from the manual: it has OnChip SATA Type (SATA2_0 ~ SATA2_3 connectors) Mode: Native IDE RAID AHCI - Advanced Host Controller to enable advanced Serial ATA features such as Native Command Queuing and hot plug. Is it the one AHCI? I've never used it. I'm more interested in configuring it as an auxiliary drive sdb to serve as a bootable backup. The box will be installed in a remote location and I'll have an ssh access to it. The box is running in a medical clinic and I'm mostly concern that after the emerge if something happens, I want the user to be able to boot grub from second drive, and it will be sdb (hd1); but during normal operation, when running from sda I want to backup some application files to it so sdb stays current. Ah, well, having only remote access rules out unplugging cables or changing BIOS settings unless there is someone at the site who can do those things. Seems like you would be better off to set up grub on sda so it can boot from sda by default, but also so a remote user can just choose sdb from grub's menu. That assumes that sda is physically intact enough to load grub from sda. You seem to be more worried about software screwups than hardware failure. But you will need to edit the handful of config files on sdb so all the right filesystems will mount correctly.
[gentoo-user] Re: language
On 04/02/2010 07:58 AM, Roger Cahn wrote: Hi all, Yesterday I gave a presentation with OOo-3.2 Impress with my laptop (xfce4, thunar). I used a video projector Dell, which worked fine. However, this made my language change from french to english in many of my packages. Right click on desktop and the showed window is in english; the same with a click on the icons on it. (their name is also in english) The menu bars are sometimes in french (thunar,firefox, thunderbird, OOo, skype) sometimes not (gimp, vlc, gedit, etc.) Hi Roger, Just to clarify, are you saying the language problem was caused by using the video projector, or by running the OO file on your laptop, or ...? Are you saying that the language problems are permanent, or just during your presentation?
Re: [gentoo-user] Re: language
Hi Roger, Hi Walt, Thank you for your answer. Just to clarify, are you saying the language problem was caused by using the video projector, or by running the OO file on your laptop, or ...? By using the video projector. It was the first time I used this one. I never had this problem with another one. Are you saying that the language problems are permanent, or just during your presentation? They are permanent :-( Roger
Re: [gentoo-user] Re: Duplicate identical Hard Disk
On Fri, Apr 2, 2010 at 9:37 AM, walt w41...@gmail.com wrote: On 04/02/2010 07:59 AM, Mark Knecht wrote: 1) Yes, you can RAID partitions of drives. That's what I'm doing. You can look at the Gentoo RAID/LVM Install guide to see an example of using RAID0 and RAID1 on a single drive. http://www.gentoo.org/doc/en/gentoo-x86+raid+lvm2-quickinstall.xml Very useful post, thanks. I'm just nitpicking here about the use of RAID0 on a single physical drive, which doesn't seem useful IIUC. RAID0 alternates stripes between two physical drives so that one disk can be reading/writing while the other disk's heads are seeking, no? If that is the case, then single-disk RAID0 will just be thrashing the heads back and forth between stripes on different partitions, making more work for itself than necessary. If I'm wrong about this, someone please correct me. No, you are correct, RAID0 on a single drive makes no sense. If I suggested that then I apologize for the confusion. I was only saying that you can do RAID on one partition but do non-RAID on another. For instance, /boot is non-RAID and then other partitions are RAID. I may be wrong but I think that's only possible with software RAID. Not sure you could do this behind a hardware RAID controller. sda1 = /boot - non-RAID sda2, sdb2, sdc2 = swap, but not RAID. The kernel binds them. sda3, sdb3, sdc3 = RAID /home or something like that. In case even that's not clear, I don't think mdadm supports a RAID array of any type with all the partitions on a single drive. For instance: mdadm --create /dev/md1 --level=1 --raid-devices=3 /dev/sda1 /dev/sda2 /dev/sda3 doesn't make any sense to me even if it is supported. Hope that helps clear things up. ;-) - Mark
Re: [gentoo-user] Re: Duplicate identical Hard Disk
On 04/02/10 09:47, walt wrote: On 04/02/2010 08:46 AM, Joseph wrote: On 04/02/10 09:42, Neil Bothwick wrote: On Thu, 01 Apr 2010 19:47:09 -0700, walt wrote: However, if you want to leave both cables connected and change your BIOS to boot from 'sdb', you will need to edit some of the files on 'sdb', Check your BIOS first, some allow you to disable individual SATA ports, so you can disconnect the drive without pulling cables. -- Neil Bothwick Good suggestion, but I'm not sure my motherboard BIOS supports it. I have GA-MA790GP-DS4H motherboard, reading from the manual: it has OnChip SATA Type (SATA2_0 ~ SATA2_3 connectors) Mode: Native IDE RAID AHCI - Advanced Host Controller to enable advanced Serial ATA features such as Native Command Queuing and hot plug. Is it the one AHCI? I've never used it. I'm more interested in configuring it as an auxiliary drive sdb to serve as a bootable backup. The box will be installed in a remote location and I'll have an ssh access to it. The box is running in a medical clinic and I'm mostly concern that after the emerge if something happens, I want the user to be able to boot grub from second drive, and it will be sdb (hd1); but during normal operation, when running from sda I want to backup some application files to it so sdb stays current. Ah, well, having only remote access rules out unplugging cables or changing BIOS settings unless there is someone at the site who can do those things. Seems like you would be better off to set up grub on sda so it can boot from sda by default, but also so a remote user can just choose sdb from grub's menu. That assumes that sda is physically intact enough to load grub from sda. You seem to be more worried about software screwups than hardware failure. But you will need to edit the handful of config files on sdb so all the right filesystems will mount correctly. As I've mentioned earlier I have enough backups on another system, so I'm not much worry about hardware failure. From my years of experience with Gentoo, I'm more worry about things working correctly after emerge :-/ I've made list what I need to do, but I'm not sure if this is all: 1.) Boot from external CD dd if=/dev/sda of=/dev/sdb 2.) modify (add to) grub.conf on sda #title boot sda current title=1st HD sda Kernel Current root (hd0,0) kernel /boot/kernel-current root=/dev/sda3 #title boot sdb current title=2nd HD sdb Kernel Current root (hd1,0) kernel /boot/kernel-current root=/dev/sdb3 3.) Modify fstab You have mentioned to use rdev but reading man pages it is only i386, and all my boxes running amd64 (x86_64). -- Joseph
Re: [gentoo-user] OT:Choosing a filesystem
On Fri, 02 Apr 2010 10:28:43 -0500, Dale wrote: Then: I often transer videos from my DVB-T-receiver/recorder to my harddisk to cut out the advertising and to transcode the videos to somethings better than ts (transport streams), These tend to be bigger, often in the GB range, so I'd use a separate filesystem for them with XFS, which handles large files better in my He mentioned in one of the first few posts that he regularly has hard shutdowns. I took that as pulling the plug. The last bit of experience I had with XFS, it does not like that sort of thing to happen. Each time I had a hard shutdown, I had to reinstall the OS. Has XFS changed so that power loss is not s problem or should he not use this after all? If the system crashes so hard that even Magic SysRq can't help, he should be fixing that first, rather than trying to find a filesystem that likes such shutdowns. Having said that XFS is much better now and I was recommending using it for video files, which are hardly life and death. -- Neil Bothwick I am ready to meet my Maker. Whether my Maker is prepared for the great ordeal of meeting me is another matter. - Sir Winston Churchill (1874-1965) signature.asc Description: PGP signature
Re: [gentoo-user] OT:Choosing a filesystem
On Fri, 2 Apr 2010 14:45:29 +0200, Volker Armin Hemmann wrote: seriously lvm sounds nice. But it isn't. It easily breaks. Do you have something to back that up? You want a save setup? Go raid5 or raid6. As a bonus - you can get more space if you need it by just adding another disk. And you are not depending on some complex stuff to get it working. LVM and RAID are completely different animals. No one suggested using it for any reasons of data security, running LVM on a RAID array gives both security and flexibility. As for being able to add space to RAID, you can't temporarily add a new volume whenever you want, you have to go out and buy another drive, then power down the computer to fit it, assuming there is room in the case for an extra drive. Remember this thread started with a question about a single large disk. -- Neil Bothwick Sacred cows make great hamburgers. signature.asc Description: PGP signature
Re: [gentoo-user] OT:Choosing a filesystem
On Freitag 02 April 2010, Neil Bothwick wrote: On Fri, 2 Apr 2010 14:45:29 +0200, Volker Armin Hemmann wrote: seriously lvm sounds nice. But it isn't. It easily breaks. Do you have something to back that up? You want a save setup? Go raid5 or raid6. As a bonus - you can get more space if you need it by just adding another disk. And you are not depending on some complex stuff to get it working. LVM and RAID are completely different animals. No one suggested using it for any reasons of data security, running LVM on a RAID array gives both security and flexibility. As for being able to add space to RAID, you can't temporarily add a new volume whenever you want, you have to go out and buy another drive, then power down the computer to fit it, assuming there is room in the case for an extra drive. no need to power down - and you can add and remove drives. Read man mdadm.
[gentoo-user] Re: OT:Choosing a filesystem
Dale wrote: Neil Bothwick wrote: On Thu, 1 Apr 2010 21:09:30 +0200, meino.cra...@gmx.de wrote: Then: I often transer videos from my DVB-T-receiver/recorder to my harddisk to cut out the advertising and to transcode the videos to somethings better than ts (transport streams), These tend to be bigger, often in the GB range, so I'd use a separate filesystem for them with XFS, which handles large files better in my experience. He mentioned in one of the first few posts that he regularly has hard shutdowns. I took that as pulling the plug. The last bit of experience I had with XFS, it does not like that sort of thing to happen. Each time I had a hard shutdown, I had to reinstall the OS. Has XFS changed so that power loss is not s problem or should he not use this after all? Would hate for the OP to use XFS if it has not improved in that area. I am using XFS now for several years and I had only once an issue with it where I hit a known bug and I could restore the integrity with its own tools. And yes, I had all over the time the necessity to hard reset my box, because new nvidia drivers typically tend to freeze it from time to time. - Jörg
Re: [gentoo-user] Can't get a DVD to burn.
On Fri, Apr 2, 2010 at 12:21 PM, Dale rdalek1...@gmail.com wrote: Neil Bothwick wrote: On Thu, 01 Apr 2010 16:12:30 -0500, Dale wrote: Then again, when I put a CD/DVD in, it doesn't mount it automatically anymore. I think that is a KDE4 thing. I may not have turned something on. I just haven't looked into it yet. That's a settings thing, turned off by default System Settings Advanced Removable Devices I spoke to soon. It worked once tho. I can mount it manually tho. Maybe I already mounted it manually and forgot? I already had a DVD in there. I'm getting to old. lol Am I supposed to have anything in fstab for KDE4 and the DVD? I don't have currently and didn't for KDE3 either. I read somewhere that KDE4 did this differently tho. Dale :-) :-) Something like this will allow a non-admin user to mount the CD/DVD /dev/cdrom/mnt/cdrom auto noauto,user0 0 -- If we can but prevent the government from wasting the labours of the people, under the pretence of taking care of them, they must become happy. - Thomas Jefferson
Re: [gentoo-user] Can't get a DVD to burn.
Bad enough you mentioned HAL in a conversation with Dale. Now there's XML involved. This thread is officially never going to end. This list really lightens up a day. LOL -- If we can but prevent the government from wasting the labours of the people, under the pretence of taking care of them, they must become happy. - Thomas Jefferson
Re: [gentoo-user] Can't get a DVD to burn.
On Fri, 02 Apr 2010 10:20:24 -0500, Dale wrote: It is mounting it now. I can see it when I type in mount. I figured it was turned off somewhere. Now to get me a little icon on the desktop so I can open it. lol Try adding the Device Notifier plasmoid to the task bar, I ind that much more convenient than desktop icons. -- Neil Bothwick I have seen things you lusers would not believe. I've seen Sun monitors on fire off the side of the multimedia lab. I've seen NTU lights glitter in the dark near the Mail Gate. All these things will be lost in time, like the root partition last week. Time to die. signature.asc Description: PGP signature
Re: [gentoo-user] Can't get a DVD to burn.
On Fri, 02 Apr 2010 11:21:04 -0500, Dale wrote: Am I supposed to have anything in fstab for KDE4 and the DVD? I don't have currently and didn't for KDE3 either. I read somewhere that KDE4 did this differently tho. No, KDE determines the mount point from the volume name. -- Neil Bothwick CPU: (n.) acronym for Central Purging Unit. A device which discards or distorts data sent to it, sometimes returning more data and sometimes merely over-heating. signature.asc Description: PGP signature
Re: [gentoo-user] OT:Choosing a filesystem
On Fri, 2 Apr 2010 20:40:54 +0200, Volker Armin Hemmann wrote: LVM and RAID are completely different animals. No one suggested using it for any reasons of data security, running LVM on a RAID array gives both security and flexibility. As for being able to add space to RAID, you can't temporarily add a new volume whenever you want, you have to go out and buy another drive, then power down the computer to fit it, assuming there is room in the case for an extra drive. no need to power down - and you can add and remove drives. Read man mdadm. Assuming your controller supports hotplugging, assuming you have a drive available to plug in, assuming you are able to physically add a drive. -- Neil Bothwick Pound for pound, the amoeba is the most vicious animal on the earth. signature.asc Description: PGP signature
Re: [gentoo-user] language
Have you tried setting LINGUAS=fr in your make.conf? On Fri, Apr 2, 2010 at 2:58 PM, Roger Cahn rc...@club-internet.fr wrote: Hi all, Yesterday I gave a presentation with OOo-3.2 Impress with my laptop (xfce4, thunar). I used a video projector Dell, which worked fine. However, this made my language change from french to english in many of my packages. Right click on desktop and the showed window is in english; the same with a click on the icons on it. (their name is also in english) The menu bars are sometimes in french (thunar,firefox, thunderbird, OOo, skype) sometimes not (gimp, vlc, gedit, etc.) I don't know what happened, and in spite of serching in many directions , I could not find a solution. How could I resolve this problem? Many thanks for a help Roger
Re: [gentoo-user] OT:Choosing a filesystem
On Freitag 02 April 2010, Neil Bothwick wrote: On Fri, 2 Apr 2010 20:40:54 +0200, Volker Armin Hemmann wrote: LVM and RAID are completely different animals. No one suggested using it for any reasons of data security, running LVM on a RAID array gives both security and flexibility. As for being able to add space to RAID, you can't temporarily add a new volume whenever you want, you have to go out and buy another drive, then power down the computer to fit it, assuming there is room in the case for an extra drive. no need to power down - and you can add and remove drives. Read man mdadm. Assuming your controller supports hotplugging, assuming you have a drive available to plug in, assuming you are able to physically add a drive. sata can hotplug. all ahci controlers can hotplug and all sata drives can hotplug. If you insist on technology straight from the stone ages that is your problem.
Re: [gentoo-user] Can't get a DVD to burn.
Neil Bothwick wrote: On Fri, 02 Apr 2010 10:20:24 -0500, Dale wrote: It is mounting it now. I can see it when I type in mount. I figured it was turned off somewhere. Now to get me a little icon on the desktop so I can open it. lol Try adding the Device Notifier plasmoid to the task bar, I ind that much more convenient than desktop icons. Oh heck yea. That is some cool stuff. I still like a icon but this works good to. I see if I can get used to this way. Thanks Dude !! Dale :-D :-D
Re: [gentoo-user] Can't get a DVD to burn.
Neil Bothwick wrote: On Fri, 02 Apr 2010 11:21:04 -0500, Dale wrote: Am I supposed to have anything in fstab for KDE4 and the DVD? I don't have currently and didn't for KDE3 either. I read somewhere that KDE4 did this differently tho. No, KDE determines the mount point from the volume name. I knew that was the KDE3 way but I didn't know what all had changed in KDE4. I actually like it that way because I usually name my DVDs and such anyway. I can usually tell from the name what is on there. I did have it commented out tho. This install is so old, I used to have to have it for it to mount. Dale :-) :-)
Re: [gentoo-user] language
Have you tried setting LINGUAS=fr in your make.conf? Yes, it is. Thank's Roger
Re: [gentoo-user] OT:Choosing a filesystem
On Fri, 2 Apr 2010 21:50:09 +0200, Volker Armin Hemmann wrote: Assuming your controller supports hotplugging, assuming you have a drive available to plug in, assuming you are able to physically add a drive. sata can hotplug. all ahci controlers can hotplug and all sata drives can hotplug. If you insist on technology straight from the stone ages that is your problem. I'd like to see you hotplug another SATA drive into this netbook, whereas I can add another volume in seconds. -- Neil Bothwick Dream as if you'll live forever. Live as if you'll die today. signature.asc Description: PGP signature
Re: [gentoo-user] OT:Choosing a filesystem
On Fri, Apr 2, 2010 at 2:50 PM, Volker Armin Hemmann volkerar...@googlemail.com wrote: On Freitag 02 April 2010, Neil Bothwick wrote: On Fri, 2 Apr 2010 20:40:54 +0200, Volker Armin Hemmann wrote: LVM and RAID are completely different animals. No one suggested using it for any reasons of data security, running LVM on a RAID array gives both security and flexibility. As for being able to add space to RAID, you can't temporarily add a new volume whenever you want, you have to go out and buy another drive, then power down the computer to fit it, assuming there is room in the case for an extra drive. no need to power down - and you can add and remove drives. Read man mdadm. Assuming your controller supports hotplugging, assuming you have a drive available to plug in, assuming you are able to physically add a drive. sata can hotplug. all ahci controlers can hotplug and all sata drives can hotplug. If you insist on technology straight from the stone ages that is your problem. Do you know if it's necessary to signal to the system (like /proc/scsi something) that I'm about to unplug the drive, and in which order the power/data need to be disconnected to prevent a problem? I'm curious in case of future need. :) Thanks.
Re: [gentoo-user] OT:Choosing a filesystem
On Fri, Apr 2, 2010 at 2:49 PM, Paul Hartman paul.hartman+gen...@gmail.com wrote: On Fri, Apr 2, 2010 at 2:50 PM, Volker Armin Hemmann volkerar...@googlemail.com wrote: On Freitag 02 April 2010, Neil Bothwick wrote: On Fri, 2 Apr 2010 20:40:54 +0200, Volker Armin Hemmann wrote: LVM and RAID are completely different animals. No one suggested using it for any reasons of data security, running LVM on a RAID array gives both security and flexibility. As for being able to add space to RAID, you can't temporarily add a new volume whenever you want, you have to go out and buy another drive, then power down the computer to fit it, assuming there is room in the case for an extra drive. no need to power down - and you can add and remove drives. Read man mdadm. Assuming your controller supports hotplugging, assuming you have a drive available to plug in, assuming you are able to physically add a drive. sata can hotplug. all ahci controlers can hotplug and all sata drives can hotplug. If you insist on technology straight from the stone ages that is your problem. Do you know if it's necessary to signal to the system (like /proc/scsi something) that I'm about to unplug the drive, and in which order the power/data need to be disconnected to prevent a problem? I'm curious in case of future need. :) Thanks. If it's part of a RAID the new one gets rebuilt. If it's not part of a RAID then I think, as per Neil's example, the computer is pretty much dead, right? However if you wanted to try it (and I'm not brave enough so don't listen to me) then you might want to do something like grep -A 1 dirty /proc/vmstat and wait until nothing is dirty. Just an idea, Mark
Re: [gentoo-user] OT:Choosing a filesystem
On Thu, Apr 1, 2010 at 1:47 PM, meino.cra...@gmx.de wrote: Hi, I googled down some - often fairly outdated - texts about the best filesystem fpr a Linux box. Other texts focussed on uses, which do not aplly to me: Fileservers, webservers, database machines etc. Wnat I want is a fast and stable (!) filesystem for a desktop PC with one 1TByte harddisk. Since using Gentoo and a lot of sources I do compile very often bigger things (blender-2.50 for example). Another thing: Due to my experimenting it is possible that I have to reboot hard, which means, the filesystem will be unmounted not cleanly (dirty do to say...;) The choosen filesystem should be good in recovering such thing. I am currently using a vanilla 2.6.32.10 kernel. The question, what remains is: What choose should I make? I have been following this thread. I decided to research to do my own comparisons of ext3, ext4, JFS and XFS. ext3 has 3 journaling levels: Journal (lowest risk) Ordered (medium risk) most Linux distributions are using this one Writeback (highest risk) XFS uses Ordered (medium risk) JFS uses Writeback (highest risk) It appears from the documentation that ext4 takes the best of ext3, XFS and JFS. My research also showed that ext2/3 is the most widely used on Linux and has the greatest community support coverage. ext4 falls into the same category as XFS and JFS in this respect. It appears that ext4, XFS or JFS or some combination of them would be the best choice. If you want to know where I got my information use Google like I did. -- If we can but prevent the government from wasting the labours of the people, under the pretence of taking care of them, they must become happy. - Thomas Jefferson
Re: [gentoo-user] Can't get a DVD to burn.
On Fri, Apr 02, 2010 at 03:27:39PM -0400, stosss wrote: Bad enough you mentioned HAL in a conversation with Dale. Now there's XML involved. This thread is officially never going to end. This list really lightens up a day. LOL -- If we can but prevent the government from wasting the labours of the people, under the pretence of taking care of them, they must become happy. - Thomas Jefferson I must admit that it really is good at providing chuckles :-) -- Zeerak Waseem pgp2ZK3s5Qqhn.pgp Description: PGP signature
Re: [gentoo-user] OT:Choosing a filesystem
On Fri, Apr 2, 2010 at 4:55 PM, Mark Knecht markkne...@gmail.com wrote: On Fri, Apr 2, 2010 at 2:49 PM, Paul Hartman paul.hartman+gen...@gmail.com wrote: On Fri, Apr 2, 2010 at 2:50 PM, Volker Armin Hemmann volkerar...@googlemail.com wrote: On Freitag 02 April 2010, Neil Bothwick wrote: On Fri, 2 Apr 2010 20:40:54 +0200, Volker Armin Hemmann wrote: LVM and RAID are completely different animals. No one suggested using it for any reasons of data security, running LVM on a RAID array gives both security and flexibility. As for being able to add space to RAID, you can't temporarily add a new volume whenever you want, you have to go out and buy another drive, then power down the computer to fit it, assuming there is room in the case for an extra drive. no need to power down - and you can add and remove drives. Read man mdadm. Assuming your controller supports hotplugging, assuming you have a drive available to plug in, assuming you are able to physically add a drive. sata can hotplug. all ahci controlers can hotplug and all sata drives can hotplug. If you insist on technology straight from the stone ages that is your problem. Do you know if it's necessary to signal to the system (like /proc/scsi something) that I'm about to unplug the drive, and in which order the power/data need to be disconnected to prevent a problem? I'm curious in case of future need. :) Thanks. If it's part of a RAID the new one gets rebuilt. If it's not part of a RAID then I think, as per Neil's example, the computer is pretty much dead, right? However if you wanted to try it (and I'm not brave enough so don't listen to me) then you might want to do something like grep -A 1 dirty /proc/vmstat and wait until nothing is dirty. Just an idea, Well, forgetting about RAID and bad drives, I should be able to unmount a normal, working SATA drive and unplug it safely, just like with a USB hard drive. I just don't know if you have to signal to SATA/AHCI that you're going to unplug (like with old hot-swappable SCSI drives), or if you need to unplug data cable before unplugging the power cable, for example.
Re: [gentoo-user] OT:Choosing a filesystem
On Fri, Apr 2, 2010 at 3:03 PM, Paul Hartman paul.hartman+gen...@gmail.com wrote: On Fri, Apr 2, 2010 at 4:55 PM, Mark Knecht markkne...@gmail.com wrote: On Fri, Apr 2, 2010 at 2:49 PM, Paul Hartman paul.hartman+gen...@gmail.com wrote: On Fri, Apr 2, 2010 at 2:50 PM, Volker Armin Hemmann volkerar...@googlemail.com wrote: On Freitag 02 April 2010, Neil Bothwick wrote: On Fri, 2 Apr 2010 20:40:54 +0200, Volker Armin Hemmann wrote: LVM and RAID are completely different animals. No one suggested using it for any reasons of data security, running LVM on a RAID array gives both security and flexibility. As for being able to add space to RAID, you can't temporarily add a new volume whenever you want, you have to go out and buy another drive, then power down the computer to fit it, assuming there is room in the case for an extra drive. no need to power down - and you can add and remove drives. Read man mdadm. Assuming your controller supports hotplugging, assuming you have a drive available to plug in, assuming you are able to physically add a drive. sata can hotplug. all ahci controlers can hotplug and all sata drives can hotplug. If you insist on technology straight from the stone ages that is your problem. Do you know if it's necessary to signal to the system (like /proc/scsi something) that I'm about to unplug the drive, and in which order the power/data need to be disconnected to prevent a problem? I'm curious in case of future need. :) Thanks. If it's part of a RAID the new one gets rebuilt. If it's not part of a RAID then I think, as per Neil's example, the computer is pretty much dead, right? However if you wanted to try it (and I'm not brave enough so don't listen to me) then you might want to do something like grep -A 1 dirty /proc/vmstat and wait until nothing is dirty. Just an idea, Well, forgetting about RAID and bad drives, I should be able to unmount a normal, working SATA drive and unplug it safely, just like with a USB hard drive. I just don't know if you have to signal to SATA/AHCI that you're going to unplug (like with old hot-swappable SCSI drives), or if you need to unplug data cable before unplugging the power cable, for example. I've never done it but according to the SATA spec yes. As with all drive umount first. Nothing I've read says it's truly safe to do it too many times. It's easy to damage or wear out the connectors or the drive. It's the #1 'end-user benefit' according to the SATA spec web pages: http://www.serialata.org/technology/why_sata.asp - Mark
[gentoo-user] Re: language
On 04/02/2010 10:13 AM, Roger Cahn wrote: Hi Roger, Hi Walt, Thank you for your answer. Just to clarify, are you saying the language problem was caused by using the video projector, or by running the OO file on your laptop, or ...? By using the video projector. It was the first time I used this one. I never had this problem with another one. Are you saying that the language problems are permanent, or just during your presentation? They are permanent :-( I propose an experiment. For example, if gedit is displaying the wrong language, then type this at a command prompt (in xterm or gterm, etc): $LC_ALL='fr' gedit
Re: [gentoo-user] OT:Choosing a filesystem
stosss sto...@gmail.com [10-04-03 05:31]: On Thu, Apr 1, 2010 at 1:47 PM, meino.cra...@gmx.de wrote: Hi, I googled down some - often fairly outdated - texts about the best filesystem fpr a Linux box. Other texts focussed on uses, which do not aplly to me: Fileservers, webservers, database machines etc. Wnat I want is a fast and stable (!) filesystem for a desktop PC with one 1TByte harddisk. Since using Gentoo and a lot of sources I do compile very often bigger things (blender-2.50 for example). Another thing: Due to my experimenting it is possible that I have to reboot hard, which means, the filesystem will be unmounted not cleanly (dirty do to say...;) The choosen filesystem should be good in recovering such thing. I am currently using a vanilla 2.6.32.10 kernel. The question, what remains is: What choose should I make? I have been following this thread. I decided to research to do my own comparisons of ext3, ext4, JFS and XFS. ext3 has 3 journaling levels: Journal (lowest risk) Ordered (medium risk) most Linux distributions are using this one Writeback (highest risk) XFS uses Ordered (medium risk) JFS uses Writeback (highest risk) It appears from the documentation that ext4 takes the best of ext3, XFS and JFS. My research also showed that ext2/3 is the most widely used on Linux and has the greatest community support coverage. ext4 falls into the same category as XFS and JFS in this respect. It appears that ext4, XFS or JFS or some combination of them would be the best choice. If you want to know where I got my information use Google like I did. -- If we can but prevent the government from wasting the labours of the people, under the pretence of taking care of them, they must become happy. - Thomas Jefferson Hi Stoss, thanks for your effort ! :) As I wrote, I did googling before starting this thread and found mostly outdated informations or informations not applying to my situation. Often it is best -- regardless what papers of 2008 or before are stateing -- to ask people for their current and uptodate experiences. Additionally your informations are all pure technical based...they are missing exactly what I was searching for: Experiences of people using different setups. And as you can see: This thread reports many of that. Best reagrds. mcc -- Please don't send me any Word- or Powerpoint-Attachments unless it's absolutely neccessary. - Send simply Text. See http://www.gnu.org/philosophy/no-word-attachments.html In a world without fences and walls nobody needs gates and windows.
