[CentOS] repo for virt-manager 0.8.0 or up

[Aclhk Aclhk]

pls advise if there is any repo for i386 or 64bit.



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Re: [CentOS] Cent5 SELinux impacts on home exports when restoring from older systems are?

[Jim Perrin]

On Tue, Dec 8, 2009 at 10:34 PM, Todd Denniston
 wrote:

> I am finding http://wiki.centos.org/HowTos/SELinux and
> http://www.centos.org/docs/5/html/Deployment_Guide-en-US/ch-selinux.html of 
> mild use.

This one's also rather useful ->
http://wiki.centos.org/TipsAndTricks/SelinuxBooleans




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[CentOS] Compile a kernel

[gilberto nunes]

Hi buddies

I attempt to compile a kernel on CentOS 5.3.
The kernel version is 2.6.31.6.

All make procedure is running ok.
I can generate initrd image with no problem too.
But, when I try booting this kernel, I get Kernel panic:

Setting up other filesystems.
Setting up new root fs
setuproot: moving /dev failed: No such file or directory
no fstab.sys, mounting internal defaults
setuproot: error mounting /proc: No such file or directory
setuproot: error mounting /sys: No such file or directory
Switching to new root and running init.
unmounting old /dev
unmounting old /proc
unmounting old /sys
switchroot: mount failed: No such file or directory
[1.732772] init used greatest stack depth: 5168 bytes left
[1.733029] Kernel panic - not syncing: Attempted to kill init!
[1.733291] Pid: 1, comm: init Not tainted 2.6.31.6 #2


I don't know what is going on here!!

Thanks if somebody will be able to help me!




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*TI*
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*Telefone: +55 (47) 3441-6004*
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Re: [CentOS] Compile a kernel

[Eero Volotinen]

Quoting gilberto nunes :

> Hi buddies
>
> I attempt to compile a kernel on CentOS 5.3.
> The kernel version is 2.6.31.6.
>
> All make procedure is running ok.
> I can generate initrd image with no problem too.
> But, when I try booting this kernel, I get Kernel panic:
>
> Setting up other filesystems.
> Setting up new root fs
> setuproot: moving /dev failed: No such file or directory
> no fstab.sys, mounting internal defaults
> setuproot: error mounting /proc: No such file or directory
> setuproot: error mounting /sys: No such file or directory
> Switching to new root and running init.
> unmounting old /dev
> unmounting old /proc
> unmounting old /sys
> switchroot: mount failed: No such file or directory
> [1.732772] init used greatest stack depth: 5168 bytes left
> [1.733029] Kernel panic - not syncing: Attempted to kill init!
> [1.733291] Pid: 1, comm: init Not tainted 2.6.31.6 #2
>
>
> I don't know what is going on here!!
>

Something critical is missing from kernel? Proc fs support?

Can you paste your .config to mailinglist or pastebin.ca ..
--
Eero,
RHCE

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[CentOS] XFS and LVM2 (possibly in the scenario of snapshots)

[Timo Schoeler]

Hi list,

during the last days there was a discussion going on about the stability 
of XFS; though I myself used XFS heavily and didn't run into issues yet, 
I'd like to ask something *before* we create our next generation data 
storage backend...

Les Mikesell wrote in [0] about issues in the combination of XFS and LVM 
-- however, it was being discussed in context of using 32bit kernels.

What I specifically need is to run XFS (or something similar, I am *not* 
forced to use XFS, but it was my preference for some years now, and I 
didn't have any issues with it yet) on top of LVM to be able to create 
snapshots. We're talking about several file systems of a size at about 
4TiByte each.

On another place [1] I read that there were issues with that.

Can anyone shed some light on this? Would be very appreciated.

Regards,

Timo

[0] -- http://lists.centos.org/pipermail/centos/2009-December/086850.html

[1] -- http://www.paragon-cs.com/wordpress/?p=67
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Re: [CentOS] Compile a kernel

[gilberto nunes]

hello

The was compile RAM disk and filesystem support and proc filesystem 
suporte too...

Perhaps I need upgrade SysVinit?

Thanks



Eero Volotinen escreveu:
> Quoting gilberto nunes :
>
>> Hi buddies
>>
>> I attempt to compile a kernel on CentOS 5.3.
>> The kernel version is 2.6.31.6.
>>
>> All make procedure is running ok.
>> I can generate initrd image with no problem too.
>> But, when I try booting this kernel, I get Kernel panic:
>>
>> Setting up other filesystems.
>> Setting up new root fs
>> setuproot: moving /dev failed: No such file or directory
>> no fstab.sys, mounting internal defaults
>> setuproot: error mounting /proc: No such file or directory
>> setuproot: error mounting /sys: No such file or directory
>> Switching to new root and running init.
>> unmounting old /dev
>> unmounting old /proc
>> unmounting old /sys
>> switchroot: mount failed: No such file or directory
>> [1.732772] init used greatest stack depth: 5168 bytes left
>> [1.733029] Kernel panic - not syncing: Attempted to kill init!
>> [1.733291] Pid: 1, comm: init Not tainted 2.6.31.6 #2
>>
>>
>> I don't know what is going on here!!
>>
>
> Something critical is missing from kernel? Proc fs support?
>
> Can you paste your .config to mailinglist or pastebin.ca ..
> -- 
> Eero,
> RHCE
>

-- 
*Gilberto Nunes Ferreira*
*TI*
*Selbetti Gestão de Documentos*
*Telefone: +55 (47) 3441-6004*
*Celular: +55 (47) 8861-6672*



/"Bendita a nação cujo Deus é o SENHOR!"/
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Re: [CentOS] Compile a kernel

[Eero Volotinen]

On 12/9/09 3:33 PM, gilberto nunes wrote:
> hello
>
> The was compile RAM disk and filesystem support and proc filesystem
> suporte too...
>
> Perhaps I need upgrade SysVinit?

Well, I think that something (important) is missing from kernel.

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Re: [CentOS] Compile a kernel

[Akemi Yagi]

On Wed, Dec 9, 2009 at 4:50 AM, gilberto nunes
 wrote:
> Hi buddies
>
> I attempt to compile a kernel on CentOS 5.3.
> The kernel version is 2.6.31.6.
>
> All make procedure is running ok.
> I can generate initrd image with no problem too.
> But, when I try booting this kernel, I get Kernel panic:

I believe this CentOS forum thread will help:

http://www.centos.org/modules/newbb/viewtopic.php?topic_id=23627&forum=37

See the instructions provided by Alan Bartlett.  If you are still
stuck, I suggest you post to the forums.

Akemi
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Re: [CentOS] XFS and LVM2 (possibly in the scenario of snapshots)

[Ross Walker]

On Dec 9, 2009, at 8:05 AM, Timo Schoeler  
 wrote:

> Hi list,
>
> during the last days there was a discussion going on about the  
> stability
> of XFS; though I myself used XFS heavily and didn't run into issues  
> yet,
> I'd like to ask something *before* we create our next generation data
> storage backend...
>
> Les Mikesell wrote in [0] about issues in the combination of XFS and  
> LVM
> -- however, it was being discussed in context of using 32bit kernels.
>
> What I specifically need is to run XFS (or something similar, I am  
> *not*
> forced to use XFS, but it was my preference for some years now, and I
> didn't have any issues with it yet) on top of LVM to be able to create
> snapshots. We're talking about several file systems of a size at about
> 4TiByte each.
>
> On another place [1] I read that there were issues with that.
>
> Can anyone shed some light on this? Would be very appreciated.

There is no problem if it is done on x86_64 with it's 8k stack frames,  
but on i386 with it's 4k stack frames you could run into a stack  
overflow when doing it on top of stackable block devices (md raid,  
lvm, drbd, etc).

Also since the current LVM on CentOS doesn't support barriers (next  
release I believe) journalling isn't safe on LVM unless you are using  
a storage controller with BBU write-back cache.

I have heard anyways that the current implementation of barriers isn't  
very performant and doesn't take into consideration controllers with  
BBU cache, so most people will end up mounting with nobarriers which  
just means they are in the same boat as they are now. Better make sure  
your machine is bullet proof as a power outage or a kernel panic can  
spell disaster for XFS (or any other file system really).

It is better to invest in a good hardware RAID controller until the  
whole barriers stuff is ironed out. It should really perform better  
then it does.

-Ross

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Re: [CentOS] XFS and LVM2 (possibly in the scenario of snapshots)

[Timo Schoeler]

thus Ross Walker spake:
> On Dec 9, 2009, at 8:05 AM, Timo Schoeler  
>  wrote:
> 
>> Hi list,
>>
>> during the last days there was a discussion going on about the  
>> stability
>> of XFS; though I myself used XFS heavily and didn't run into issues  
>> yet,
>> I'd like to ask something *before* we create our next generation data
>> storage backend...
>>
>> Les Mikesell wrote in [0] about issues in the combination of XFS and  
>> LVM
>> -- however, it was being discussed in context of using 32bit kernels.
>>
>> What I specifically need is to run XFS (or something similar, I am  
>> *not*
>> forced to use XFS, but it was my preference for some years now, and I
>> didn't have any issues with it yet) on top of LVM to be able to create
>> snapshots. We're talking about several file systems of a size at about
>> 4TiByte each.
>>
>> On another place [1] I read that there were issues with that.
>>
>> Can anyone shed some light on this? Would be very appreciated.
> 
> There is no problem if it is done on x86_64 with it's 8k stack frames,  
> but on i386 with it's 4k stack frames you could run into a stack  
> overflow when doing it on top of stackable block devices (md raid,  
> lvm, drbd, etc).
> 
> Also since the current LVM on CentOS doesn't support barriers (next  
> release I believe) journalling isn't safe on LVM unless you are using  
> a storage controller with BBU write-back cache.
> 
> I have heard anyways that the current implementation of barriers isn't  
> very performant and doesn't take into consideration controllers with  
> BBU cache, so most people will end up mounting with nobarriers which  
> just means they are in the same boat as they are now. Better make sure  
> your machine is bullet proof as a power outage or a kernel panic can  
> spell disaster for XFS (or any other file system really).
> 
> It is better to invest in a good hardware RAID controller until the  
> whole barriers stuff is ironed out. It should really perform better  
> then it does.

Thanks for your detailed explanation, that really clears things up; 
however, I was intending to build a software RAID10 as we had really not 
so good experiences on hw RAID controllers int the past (for all kinds 
of phenomena).

Would barriering here still be a problem then?

Timo

> -Ross

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Re: [CentOS] VirtualBox and CentOS

[Lars Hecking]

> I tried everything in that post as well, and nothing worked for me. 
> Finally I found the process I laid out and it worked.
> 
> The link to it is here which is an old ticket:
> 
> 
 
 I've tested it and it works! Presumably, it might have worked in some of
 my previous attempts, but I only now figured out that I need to manually
 attach the device via device menu or USB icon. Not exactly plug and play,
 but workable.

 The mount command itself is sufficient here, no need to stop vboxdrv (or
 vboxnet, which doesn't exist), or chmod g+rw /dev/vboxdrv.

 Thanks, Max!


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Re: [CentOS] VirtualBox and CentOS

[Max Hetrick]

Lars Hecking wrote:
>  I've tested it and it works! Presumably, it might have worked in some of
>  my previous attempts, but I only now figured out that I need to manually
>  attach the device via device menu or USB icon. Not exactly plug and play,
>  but workable.
> 
>  The mount command itself is sufficient here, no need to stop vboxdrv (or
>  vboxnet, which doesn't exist), or chmod g+rw /dev/vboxdrv.

Oh, ok, cool. Yeah, I didn't try it without restarting vboxdrv so that's 
nice to know too!

Thanks,
Max
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[CentOS] CentOS-announce Digest, Vol 58, Issue 2

[centos-announce-request]

Send CentOS-announce mailing list submissions to
centos-annou...@centos.org

To subscribe or unsubscribe via the World Wide Web, visit
http://lists.centos.org/mailman/listinfo/centos-announce
or, via email, send a message with subject or body 'help' to
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You can reach the person managing the list at
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When replying, please edit your Subject line so it is more specific
than "Re: Contents of CentOS-announce digest..."


Today's Topics:

   1. CESA-2009:1651 Moderate CentOS 3 i386 ntp -   security update
  (Tru Huynh)
   2. CESA-2009:1651 Moderate CentOS 3 x86_64 ntp - security update
  (Tru Huynh)
   3. CESA-2009:1646 Moderate CentOS 3 i386 libtool -   security
  update (Tru Huynh)
   4. CESA-2009:1646 Moderate CentOS 3 x86_64 libtool - security
  update (Tru Huynh)
   5. CESA-2009:1648 Moderate CentOS 4 i386 ntp -   security update
  (Tru Huynh)
   6. CESA-2009:1648 Moderate CentOS 4 x86_64 ntp - security update
  (Tru Huynh)
   7. CESA-2009:1646 Moderate CentOS 4 i386 libtool -   security
  update (Tru Huynh)
   8. CESA-2009:1646 Moderate CentOS 4 x86_64 libtool - security
  update (Tru Huynh)


--

Message: 1
Date: Tue, 8 Dec 2009 23:18:02 +0100
From: Tru Huynh 
Subject: [CentOS-announce] CESA-2009:1651 Moderate CentOS 3 i386 ntp -
security update
To: centos-annou...@centos.org
Message-ID: <20091208221802.ga2...@sillage.bis.pasteur.fr>
Content-Type: text/plain; charset="us-ascii"

CentOS Errata and Security Advisory CESA-2009:1651

ntp security update for CentOS 3 i386:
https://rhn.redhat.com/errata/RHSA-2009-1651.html

The following updated file has been uploaded and is currently syncing to
the mirrors:

i386:
updates/i386/RPMS/ntp-4.1.2-6.el3.i386.rpm

source:
updates/SRPMS/ntp-4.1.2-6.el3.src.rpm

You may update your CentOS-3 i386 installations by running the command:

yum update ntp

Tru
-- 
Tru Huynh (mirrors, CentOS-3 i386/x86_64 Package Maintenance)
http://pgp.mit.edu:11371/pks/lookup?op=get&search=0xBEFA581B
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--

Message: 2
Date: Tue, 8 Dec 2009 23:18:20 +0100
From: Tru Huynh 
Subject: [CentOS-announce] CESA-2009:1651 Moderate CentOS 3 x86_64 ntp
-   security update
To: centos-annou...@centos.org
Message-ID: <20091208221820.gb2...@sillage.bis.pasteur.fr>
Content-Type: text/plain; charset="us-ascii"

CentOS Errata and Security Advisory CESA-2009:1651

ntp security update for CentOS 3 x86_64:
https://rhn.redhat.com/errata/RHSA-2009-1651.html

The following updated file has been uploaded and is currently syncing to
the mirrors:

x86_64:
updates/x86_64/RPMS/ntp-4.1.2-6.el3.x86_64.rpm

source:
updates/SRPMS/ntp-4.1.2-6.el3.src.rpm

You may update your CentOS-3 x86_64 installations by running the command:

yum update ntp

Tru
-- 
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http://pgp.mit.edu:11371/pks/lookup?op=get&search=0xBEFA581B
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--

Message: 3
Date: Tue, 8 Dec 2009 23:18:58 +0100
From: Tru Huynh 
Subject: [CentOS-announce] CESA-2009:1646 Moderate CentOS 3 i386
libtool -   security update
To: centos-annou...@centos.org
Message-ID: <20091208221858.gc2...@sillage.bis.pasteur.fr>
Content-Type: text/plain; charset="us-ascii"

CentOS Errata and Security Advisory CESA-2009:1646

libtool security update for CentOS 3 i386:
https://rhn.redhat.com/errata/RHSA-2009-1646.html

The following updated file has been uploaded and is currently syncing to
the mirrors:

i386:
updates/i386/RPMS/libtool-1.4.3-7.i386.rpm
updates/i386/RPMS/libtool-libs-1.4.3-7.i386.rpm

source:
updates/SRPMS/libtool-1.4.3-7.src.rpm

You may update your CentOS-3 i386 installations by running the command:

yum update libtool\*

Tru
-- 
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http://pgp.mit.edu:11371/pks/lookup?op=get&search=0xBEFA581B
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--

Message: 4
Date: Tue, 8 Dec 2009 23:19:42 +0100
From: Tru Huynh 
Subject: [CentOS-announce] CESA-2009:1646 M

Re: [CentOS] Is ext4 safe for a production server?

[Miguel Di Ciurcio Filho]

Miguel Medalha wrote:
> I am about to install a new server running CentOS 5.4. The server will 
> contain pretty critical data that we can't afford to corrupt.
> 

Just for the record, Theodore Ts'o marked ext4 as stable and ready for 
general usage more than one year ago [1]. On 25 December 2008 kernel 
2.6.28 was released with ext4 considered ready for production. So, ext4 
is not _that_ new anymore. One year latter that Fedora 12 and Ubuntu 
9.10 began using ext4 as default.

I believe for 5.5 or even on 5.6, ext4 will not be a tech preview 
anymore. Considering that RH has extended the support so much, and how 
ext3 is so limited with the current and future disk's capacities (fsck 
on a 1TB volume is not funny). The current ext4 module is close to the 
one on 2.6.29 plus lots of fixes [2]

[1] 
http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=03010a3350301baac2154fa66de925ae2981b7e3
[2] rpm -q --changelog kernel|grep ext4
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[CentOS] Anyone using fedora as guest/vm on Centos

[Linux student]

Hi folks,

I just want to know if someone have any experience with fedora installed
as guest/VM on Centos.

thanks.


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Re: [CentOS] Anyone using fedora as guest/vm on Centos

[Ray Van Dolson]

On Wed, Dec 09, 2009 at 10:44:15PM +0500, Linux student wrote:
> Hi folks,
> 
> I just want to know if someone have any experience with fedora installed
> as guest/VM on Centos.
> 
> thanks.

I've installed Fedora as a Xen guest (domU) on RHEL 5.4 before.  There
were a few oddities getting things installed but it worked fine once up
and running.

Ray
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Re: [CentOS] Anyone using fedora as guest/vm on Centos

[Neil Aggarwal]

> I just want to know if someone have any experience with 
> fedora installed
> as guest/VM on Centos.

Take a look at this page:
http://www.linux-kvm.org/page/Guest_Support_Status
for KVM support for specific guests.

I hope this helps,
Neil

--
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No overage charges, 7 day free trial, Google Checkout accepted

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Re: [CentOS] Anyone using fedora as guest/vm on Centos

[Linux student]

Neil Aggarwal on 2009-12-09 22:55 PM +0500, wrote :
>> I just want to know if someone have any experience with 
>> fedora installed
>> as guest/VM on Centos.
>> 
>
> Take a look at this page:
> http://www.linux-kvm.org/page/Guest_Support_Status
> for KVM support for specific guests.
>
> I hope this helps,
>   Neil
>   
Thanks.
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Re: [CentOS] Anyone using fedora as guest/vm on Centos

[Linux student]

Ray Van Dolson on 2009-12-09 22:52 PM +0500, wrote :
> On Wed, Dec 09, 2009 at 10:44:15PM +0500, Linux student wrote:
>   
>> Hi folks,
>>
>> I just want to know if someone have any experience with fedora installed
>> as guest/VM on Centos.
>>
>> thanks.
>> 
>
> I've installed Fedora as a Xen guest (domU) on RHEL 5.4 before.  There
> were a few oddities getting things installed but it worked fine once up
> and running.
>
> Ray
>   



Thanks Ray , i am planning to use KVM this time.
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Re: [CentOS] Is ext4 safe for a production server?

[Thomas Harold]

On 12/9/2009 12:23 PM, Miguel Di Ciurcio Filho wrote:
> Miguel Medalha wrote:
>> I am about to install a new server running CentOS 5.4. The server will
>> contain pretty critical data that we can't afford to corrupt.
>>
>
> Just for the record, Theodore Ts'o marked ext4 as stable and ready for
> general usage more than one year ago [1]. On 25 December 2008 kernel
> 2.6.28 was released with ext4 considered ready for production. So, ext4
> is not _that_ new anymore. One year latter that Fedora 12 and Ubuntu
> 9.10 began using ext4 as default.
>
> I believe for 5.5 or even on 5.6, ext4 will not be a tech preview
> anymore. Considering that RH has extended the support so much, and how
> ext3 is so limited with the current and future disk's capacities (fsck
> on a 1TB volume is not funny). The current ext4 module is close to the
> one on 2.6.29 plus lots of fixes [2]
>
> [1]
> http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=03010a3350301baac2154fa66de925ae2981b7e3
> [2] rpm -q --changelog kernel|grep ext4

My leaning is that 5.4 would be a bit too soon for production data, 
unless you have a very specific need and very good backups.  But it's 
darned close to ready.

Waiting until 5.5 or 5.6 (or 6.0) or at least waiting until next spring 
sounds like a reasonable middle ground.  That gives the Ubuntu and FC 
hordes time to beat on it in less controlled settings.
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[CentOS] Kerio Mail Server - anyone?

[Alan McKay]

Hey guys,

I'm trying to install the latest Kerio and it seems to want an older
version of libstdc++ which I cannot find anywhere in RPM land

(sorry, but I just know gmail is going to mangle this on its way out )


[r...@localhost ~]# rpm --install
/home/amckay/kerio-kms-6.7.3-7892.linux.i386.rpm
error: Failed dependencies:
libstdc++.so.5 is needed by kerio-kms-6.7.3-7892.linux.i386
libstdc++.so.5(CXXABI_1.2) is needed by kerio-kms-6.7.3-7892.linux.i386
libstdc++.so.5(GLIBCPP_3.2) is needed by kerio-kms-6.7.3-7892.linux.i386
libstdc++.so.5(GLIBCPP_3.2.2) is needed by 
kerio-kms-6.7.3-7892.linux.i386

[r...@localhost ~]# yum --enablerepo=* search libstdc++
Loaded plugins: fastestmirror, priorities
Loading mirror speeds from cached hostfile
 * addons: centos.mirror.iweb.ca
 * base: centos.mirror.iweb.ca
 * centosplus: centos.mirror.iweb.ca
 * epel: serverbeach1.fedoraproject.org
 * epel-debuginfo: mirror.ipnode.info
 * epel-source: serverbeach1.fedoraproject.org
 * epel-testing: serverbeach1.fedoraproject.org
 * epel-testing-debuginfo: mirror.ipnode.info
 * epel-testing-source: serverbeach1.fedoraproject.org
 * extras: centos.mirror.iweb.ca
 * updates: centos.mirror.iweb.ca
addons
  |  951 B 00:00
base
  | 2.1 kB 00:00
centosplus
  | 1.9 kB 00:00
centosplus/primary_db
  |  98 kB 00:00
dag
  | 1.1 kB 00:00
epel
  | 3.4 kB 00:00
epel-debuginfo
  | 2.6 kB 00:00
epel-debuginfo/primary_db
  | 366 kB 00:00
epel-source
  | 2.8 kB 00:00
epel-source/primary_db
  | 693 kB 00:00
epel-testing
  | 3.4 kB 00:00
epel-testing/primary_db
  | 239 kB 00:00
epel-testing-debuginfo
  | 2.6 kB 00:00
epel-testing-debuginfo/primary_db
  |  28 kB 00:00
epel-testing-source
  | 2.8 kB 00:00
epel-testing-source/primary_db
  |  64 kB 00:00
extras
  | 1.1 kB 00:00
pgdg84
  | 1.2 kB 00:00
pgdg84/primary
  |  38 kB 00:00
http://192.168.0.9/ks/postgres/8.4.1/rhel-5-x86_64/repodata/primary.xml.gz:
[Errno -3] Error performing checksum
Trying other mirror.
updates
  | 1.9 kB 00:00
3381 packages excluded due to repository priority protections
 Matched:
libstdc++ 
compat-libstdc++-296.i386 : Compatibility 2.96-RH standard C++ libraries
compat-libstdc++-33.i386 : Compatibility standard C++ libraries
compat-libstdc++-33.x86_64 : Compatibility standard C++ libraries
libstdc++.i386 : GNU Standard C++ Library
libstdc++.x86_64 : GNU Standard C++ Library
libstdc++-devel.i386 : Header files and libraries for C++ development
libstdc++-devel.x86_64 : Header files and libraries for C++ development
libstdc++44-devel.i386 : Header files and libraries for C++ development
libstdc++44-devel.x86_64 : Header files and libraries for C++ development
[r...@localhost ~]# yum -y install compat-libstdc++ libstdc++-devel
Loaded plugins: fastestmirror, priorities
Loading mirror speeds from cached hostfile
 * addons: centos.mirror.iweb.ca
 * base: centos.mirror.iweb.ca
 * epel: mirror.ipnode.info
 * extras: centos.mirror.iweb.ca
 * updates: centos.mirror.iweb.ca
3332 packages excluded due to repository priority protections
Setting up Install Process
No package compat-libstdc++ available.
Package libstdc++-devel-4.1.2-46.el5_4.1.x86_64 already installed and
latest version
Resolving Dependencies
--> Running transaction check
---> Package libstdc++-devel.i386 0:4.1.2-46.el5_4.1 set to be updated
--> Finished Dependency Resolution

Dependencies Resolved


 Package  Arch  Version
  RepositorySize

Installing:
 libstdc++-devel  i386
4.1.2-46.el5_4.1 updates  2.8 M

Transaction Summary

Install  1 Package(s)
Update   0 Package(s)
Remove   0 Package(s)

Total download size: 2.8 M
Downloading Packages:
libstdc++-devel-4.1.2-46.el5_4.1.i386.rpm
  | 2.8 MB 00:03
Running rpm_check_debug
Ru

Re: [CentOS] Kerio Mail Server - anyone?

[Alan Hodgson]

On Wednesday 09 December 2009, Alan McKay  wrote:
> Complete!
> [r...@localhost ~]# rpm --install
> /home/amckay/kerio-kms-6.7.3-7892.linux.i386.rpm
> error: Failed dependencies:
>   libstdc++.so.5 is needed by kerio-kms-6.7.3-7892.linux.i386
>   libstdc++.so.5(CXXABI_1.2) is needed by kerio-kms-6.7.3-7892.linux.i386
>   libstdc++.so.5(GLIBCPP_3.2) is needed by kerio-kms-6.7.3-7892.linux.i386
>   libstdc++.so.5(GLIBCPP_3.2.2) is needed by
> kerio-kms-6.7.3-7892.linux.i386 [r...@localhost ~]# rpm -qa | grep -i
> libstdc
> libstdc++-4.1.2-46.el5_4.1
> libstdc++-4.1.2-46.el5_4.1
> libstdc++-devel-4.1.2-46.el5_4.1
> libstdc++-devel-4.1.2-46.el5_4.1
> [r...@localhost ~]#

The compat-libstdc++-33 package in base appears to supply this library.

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Re: [CentOS] Kerio Mail Server - anyone?

[Chris Spike]

Hey Alan,

On 12/09/2009 07:56 PM, Alan McKay wrote:
> [r...@localhost ~]# rpm --install
> /home/amckay/kerio-kms-6.7.3-7892.linux.i386.rpm
> error: Failed dependencies:
>   libstdc++.so.5 is needed by kerio-kms-6.7.3-7892.linux.i386
>   libstdc++.so.5(CXXABI_1.2) is needed by kerio-kms-6.7.3-7892.linux.i386
>   libstdc++.so.5(GLIBCPP_3.2) is needed by kerio-kms-6.7.3-7892.linux.i386
>   libstdc++.so.5(GLIBCPP_3.2.2) is needed by 
> kerio-kms-6.7.3-7892.linux.i386

Why don't you let yum handle this?

# yum whatprovides libstdc++.so.5
[..]
compat-libstdc++-33-3.2.3-61.i386 : Compatibility standard C++ libraries
Repo: base
Matched from:
Other   : libstdc++.so.5

so a quick 'yum install kerio-kms-6.7.3-7892.linux.i386.rpm' should do 
the trick.

hth, Chris
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Re: [CentOS] Compile a kernel

[gilberto nunes]

Hi Akemi

I follow this how to step y step, but I get the same result!

Do you have other idea!?!?

Thanks

Akemi Yagi escreveu:

  On Wed, Dec 9, 2009 at 4:50 AM, gilberto nunes
 wrote:
  
  
Hi buddies

I attempt to compile a kernel on CentOS 5.3.
The kernel version is 2.6.31.6.

All make procedure is running ok.
I can generate initrd image with no problem too.
But, when I try booting this kernel, I get Kernel panic:

  
  
I believe this CentOS forum thread will help:

http://www.centos.org/modules/newbb/viewtopic.php?topic_id=23627&forum=37

See the instructions provided by Alan Bartlett.  If you are still
stuck, I suggest you post to the forums.

Akemi
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-- 



  

  
  

  

Gilberto Nunes Ferreira
TI
Selbetti Gestão de Documentos
Telefone: +55 (47) 3441-6004
Celular: +55 (47) 8861-6672



"Bendita a nação cujo Deus é o SENHOR!"
99 <><


  

  
  

  




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Re: [CentOS] Kerio Mail Server - anyone?

[Alan McKay]

On Wed, Dec 9, 2009 at 2:15 PM, Chris Spike  wrote:
> # yum whatprovides libstdc++.so.5

, hey, I didn't know that feature!   great, thanks!


-- 
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Re: [CentOS] Kerio Mail Server - anyone?

[Alan McKay]

Bingo!

[r...@localhost ~]# rpm --install
/home/amckay/kerio-kms-6.7.3-7892.linux.i386.rpm

Thank you for installing Kerio MailServer 6.7.3!

Please consult LINUX-README file for essential
instructions on how to operate KMS in Linux
operating environment.

To view the README file, type

less /opt/kerio/mailserver/doc/LINUX-README




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Re: [CentOS] Compile a kernel

[Eero Volotinen]

On 12/9/09 9:30 PM, gilberto nunes wrote:
> Hi Akemi
>
> I follow this how to step y step, but I get the same result!
>
> Do you have other idea!?!?

post your kernel configuration .config (-file) to net, without it we 
cannot help you..

--
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Re: [CentOS] Compile a kernel

[gilberto nunes]

here we go:

http://mail.selbetti.com.br/config

Thanks

gilberto nunes escreveu:

  
Hi Akemi
  
I follow this how to step y step, but I get the same result!
  
Do you have other idea!?!?
  
Thanks
  
Akemi Yagi escreveu:
  
On Wed, Dec 9, 2009 at 4:50 AM, gilberto nunes
 wrote:
  

  Hi buddies

I attempt to compile a kernel on CentOS 5.3.
The kernel version is 2.6.31.6.

All make procedure is running ok.
I can generate initrd image with no problem too.
But, when I try booting this kernel, I get Kernel panic:



I believe this CentOS forum thread will help:

http://www.centos.org/modules/newbb/viewtopic.php?topic_id=23627&forum=37

See the instructions provided by Alan Bartlett.  If you are still
stuck, I suggest you post to the forums.

Akemi
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  -- 
  
  
  

  


  

   Gilberto Nunes Ferreira
  TI
  Selbetti Gestão de Documentos
  Telefone: +55 (47) 3441-6004
  Celular: +55 (47) 8861-6672
  
  
  
  "Bendita a nação cujo Deus é o SENHOR!"
  99 <><
  
  

  


  

  
  
  

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-- 



  

  
  

  

Gilberto Nunes Ferreira
TI
Selbetti Gestão de Documentos
Telefone: +55 (47) 3441-6004
Celular: +55 (47) 8861-6672



"Bendita a nação cujo Deus é o SENHOR!"
99 <><


  

  
  

  




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Re: [CentOS] VirtualBox and CentOS

[JS]

> -Original Message-
> From: centos-boun...@centos.org [mailto:centos-boun...@centos.org] On
> Behalf Of Lars Hecking
> Sent: Tuesday, December 08, 2009 7:24 AM
> To: centos@centos.org
> Subject: [CentOS] VirtualBox and CentOS
> 
> 
>  I recently doownloaded and installed the latest RHEL5 rpm from the
> VirtualBox
>  web site. While it generally works very well, I have been unable to get
> USB
>  access to work on the guest.
> 
>  This seems to be a very common problem. Many references to it turn up in
> a
>  web search, but I have not found a solution that works on CentOS 5. I got
> no
>  response on the vbox-users mailing list either. Can anyone here help?
> 
>  Among the things I tried were various /sys and /proc/bus/usb related
> fstab
>  and rc.sysinit changes. Drew a total blank on this one ...
---
Give this a try but I would advise not using on a production machine.

# For VirtualBox
# none   /sys/bus/usb/drivers   usbfs   devgid=501,devmode=664   0   0

Also make sure the User is in the VBox Users Group.

John

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[CentOS] nagios 3 packages?

[Florin Andrei]

So, my favorite RPM repository (EPEL) only has the ancient nagios-2.12 
or so.

What's the repo you use for Nagios 3?

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http://florin.myip.org/
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Re: [CentOS] XFS and LVM2 (possibly in the scenario of snapshots)

[Ross Walker]

On Dec 9, 2009, at 10:39 AM, Timo Schoeler  
 wrote:

> thus Ross Walker spake:
>> On Dec 9, 2009, at 8:05 AM, Timo Schoeler
>>  wrote:
>>
>>> Hi list,
>>>
>>> during the last days there was a discussion going on about the
>>> stability
>>> of XFS; though I myself used XFS heavily and didn't run into issues
>>> yet,
>>> I'd like to ask something *before* we create our next generation  
>>> data
>>> storage backend...
>>>
>>> Les Mikesell wrote in [0] about issues in the combination of XFS and
>>> LVM
>>> -- however, it was being discussed in context of using 32bit  
>>> kernels.
>>>
>>> What I specifically need is to run XFS (or something similar, I am
>>> *not*
>>> forced to use XFS, but it was my preference for some years now,  
>>> and I
>>> didn't have any issues with it yet) on top of LVM to be able to  
>>> create
>>> snapshots. We're talking about several file systems of a size at  
>>> about
>>> 4TiByte each.
>>>
>>> On another place [1] I read that there were issues with that.
>>>
>>> Can anyone shed some light on this? Would be very appreciated.
>>
>> There is no problem if it is done on x86_64 with it's 8k stack  
>> frames,
>> but on i386 with it's 4k stack frames you could run into a stack
>> overflow when doing it on top of stackable block devices (md raid,
>> lvm, drbd, etc).
>>
>> Also since the current LVM on CentOS doesn't support barriers (next
>> release I believe) journalling isn't safe on LVM unless you are using
>> a storage controller with BBU write-back cache.
>>
>> I have heard anyways that the current implementation of barriers  
>> isn't
>> very performant and doesn't take into consideration controllers with
>> BBU cache, so most people will end up mounting with nobarriers which
>> just means they are in the same boat as they are now. Better make  
>> sure
>> your machine is bullet proof as a power outage or a kernel panic can
>> spell disaster for XFS (or any other file system really).
>>
>> It is better to invest in a good hardware RAID controller until the
>> whole barriers stuff is ironed out. It should really perform better
>> then it does.
>
> Thanks for your detailed explanation, that really clears things up;
> however, I was intending to build a software RAID10 as we had really  
> not
> so good experiences on hw RAID controllers int the past (for all kinds
> of phenomena).
>
> Would barriering here still be a problem then?

So long as LVM isn't involved it will use barriers, but I can tell you  
you will be less then impressed by the performance.

Go for hardware RAID with BBU write-cache, go for a good hardware RAID  
solution, look to spend $350-$700 get one that supports SAS and SATA.  
I like the LSI MegaRAID cards with 512MB of battery backed cache.

Some cards allow you to run in JBOD mode with battery backed write- 
back cache enabled, so if you really want software RAID you can run it  
and still have fast, safe performance (though you spread the cache a  
little thin across that many logical units).

-Ross

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Re: [CentOS] how to find last updates for Centos 5.3?

[Brian Mathis]

On Mon, Dec 7, 2009 at 6:25 PM, Karanbir Singh  wrote:
> On 07/12/09 23:19, Brian Mathis wrote:
>> Not true, and it's the thing that's most irritating about this policy.
>>   The RPMs are still there, just not the sqlite repodata files that yum
>> needs.  So if you got to a mirror, you can see all of the files, but
>> yum doesn't work.
>
> well, Brian - you seem to be looking in the wrong place, also you are
> mistaken about requirements for sqlite data. So, here is where it stands:
>
> 5.3 has not been moved to vault.c.o as yet, due to disk space issues, we
> should have that resolved in the next few weeks. Once its moved, it will
> exist there for as long as we are able to keep it ( we still have all of
> 2.1 / 3.* / 4.* and 5.* so far )
>
> all metadata for 5.3 is still available in the right place. eg:
> http://mirror.centos.org/centos/5.3/updates/i386/repodata/
> http://mirror.centos.org/centos/5.3/os/i386/repodata/
>
> Every release ever done by CentOS stays public, and we make every effort
> to keep atleast the binary and source files available ( so this
> best-effort-warranty does not extend to debuginfo pkgs ).
>
> hth
>
> - KB


Yes, you are right and I was mistaken.  I had performed a server
install the other day and yum was having issues getting updates
because of missing sqlite files.  Apparently this was related to
something else, as I performed another install today that was able to
apply 5.3 updates just fine.

However, the situation does highlight one of the other irritating
aspects of the discussion, which is that whenever the topic of holding
back a system to an older release comes up, it results in a pigpile of
snarky comments about how wrong I am to want to hold back, as if
everyone else knows how to manage my environment better than I do.

I'm not saying that's what happened here, but that approach quickly
discourages any discussion along those lines, and any resolution of
the underlying problem is missed.

The problem highlighted by the OP, and the issue with VMware Server
are both very good examples why one might want to hold back updates.
In an enterprise environment, it's perfectly reasonable to want to
apply updates to the current version but not upgrade to the next, and
reducing the hostility towards this sort of discussion would go a long
way in fostering community relationships.
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Re: [CentOS] nagios 3 packages?

[nate]

Florin Andrei wrote:
> So, my favorite RPM repository (EPEL) only has the ancient nagios-2.12
> or so.
>
> What's the repo you use for Nagios 3?

About a year ago I yanked the SRPMs from an OpenSUSE site and
built them for CentOS 4.x/5.x (32/64-bit).

Not sure if there is a ready made repo for nagios 3 for centos
at this point, be surprised if there wasn't since it's pretty old
now.

# rpm -qa | grep -i nagios
nagios-plugins-1.4.9-1.el5
nagios-3.0.2-1.el5
nagios-nrpe-2.5.2-1.el5
nagios-plugins-setuid-1.4.9-1.el5
nagios-www-3.0.2-1.el5
nagios-plugins-nrpe-2.5.2-1.el5
nagios-devel-3.0.2-1.el5

Been using it across a half dozen nagios servers monitoring probably
8000 services on 500 hosts for quite a while now.

nate


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Re: [CentOS] nagios 3 packages?

[Mathew S. McCarrell]

On Wed, Dec 9, 2009 at 6:58 PM, nate  wrote:

> Florin Andrei wrote:
> > So, my favorite RPM repository (EPEL) only has the ancient nagios-2.12
> > or so.
> >
> > What's the repo you use for Nagios 3?
>
> About a year ago I yanked the SRPMs from an OpenSUSE site and
> built them for CentOS 4.x/5.x (32/64-bit).
>
> Not sure if there is a ready made repo for nagios 3 for centos
> at this point, be surprised if there wasn't since it's pretty old
> now.
>
> # rpm -qa | grep -i nagios
> nagios-plugins-1.4.9-1.el5
> nagios-3.0.2-1.el5
> nagios-nrpe-2.5.2-1.el5
> nagios-plugins-setuid-1.4.9-1.el5
> nagios-www-3.0.2-1.el5
> nagios-plugins-nrpe-2.5.2-1.el5
> nagios-devel-3.0.2-1.el5
>
> Been using it across a half dozen nagios servers monitoring probably
> 8000 services on 500 hosts for quite a while now.
>
> nate
>
>
>
RPMForge has the latest stable Nagios release and I've had no issues with
it... well other than the DST bug that 3.2.0 currently has.

Matt

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Clarkson University '10

mccar...@gmail.com
mccar...@clarkson.edu
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Re: [CentOS] nagios 3 packages?

[Florin Andrei]

On 12/9/2009 3:51 PM, Florin Andrei wrote:
> So, my favorite RPM repository (EPEL) only has the ancient nagios-2.12
> or so.
>
> What's the repo you use for Nagios 3?

I asked too soon. "rpmbuild -tb" works pretty well on the source tarball. :)

-- 
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[CentOS] Linux router with CentOS

[Alvaro Schneider Guevara]

Hello everybody.

I'm wondering here if is it possible to setup a CentOS machine as a router
for two Internet connections in a LAN. This _router_ would work as the
gateway for the workstations using DHCPD. The purpose of this is to optimize
the broadband "joining" both connections, and given the case, do not lose
the Internet access.

¿is this possible? ¿too much complicated?

Searching the Net i found something simliar:
http://linux-ip.net/html/adv-multi-internet.html but, I would like to read a
second opinion.

Thank you very much. Cheers.
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Re: [CentOS] Linux router with CentOS

[Rainer Duffner]

Am 10.12.2009 um 01:39 schrieb Alvaro Schneider Guevara:


Hello everybody.

I'm wondering here if is it possible to setup a CentOS machine as a  
router for two Internet connections in a LAN. This _router_ would  
work as the gateway for the workstations using DHCPD. The purpose of  
this is to optimize the broadband "joining" both connections, and  
given the case, do not lose the Internet access.


¿is this possible? ¿too much complicated?

Searching the Net i found something simliar: http://linux-ip.net/html/adv-multi-internet.html 
 but, I would like to read a second opinion.


Thank you very much. Cheers.

_



Use pfSense (www.pfsense.org) for that.
It's based on FreeBSD, but you don't really need care about the OS -  
it comes with a web-gui that can configure everything (fail-over, WAN- 
loadbalancing/failover).


Unless you want to spend a lot of time and never get it right 100%...



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Re: [CentOS] Linux router with CentOS

[Alan McKay]

just download one of the firewall distros that have the built in

pfSense (FreeBSD) or IPCop (Linux) are the first 2 to mind.
ClarkConnect is another good one though it may have limited
functionality without paying, I don't know for sure.   But we paid for
it at work and it works really well for doing that.


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Re: [CentOS] Linux router with CentOS

[Gabriel Rosca]

you can take a look at SYSWAN SW24 10/100Mbps Dual WAN Load Balancer 


Gabe

-Original Message-
From: centos-boun...@centos.org [mailto:centos-boun...@centos.org] On Behalf
Of Alan McKay
Sent: Wednesday, December 09, 2009 8:03 PM
To: CentOS mailing list
Subject: Re: [CentOS] Linux router with CentOS

just download one of the firewall distros that have the built in

pfSense (FreeBSD) or IPCop (Linux) are the first 2 to mind.
ClarkConnect is another good one though it may have limited
functionality without paying, I don't know for sure.   But we paid for
it at work and it works really well for doing that.


-- 
"Don't eat anything you've ever seen advertised on TV"
 - Michael Pollan, author of "In Defense of Food"
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Re: [CentOS] Linux router with CentOS

[Ian Blackwell]

Alan McKay wrote:
> just download one of the firewall distros that have the built in
>
> pfSense (FreeBSD) or IPCop (Linux) are the first 2 to mind.
> ClarkConnect is another good one though it may have limited
> functionality without paying, I don't know for sure.   But we paid for
> it at work and it works really well for doing that.
>
>
>   
IPCop, if I recall correctly, doesn't load balance or fail-over -
pfsense does.

Ian


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[CentOS] Is lsb 3.2+ detrimental to CentOS 5.4?

[MHR]

I found out today that Google Chrome is now available for Linux.
However, and this is a big but:

$ sudo rpm -ivh google-chrome-beta_current_x86_64.rpm
Password:
warning: google-chrome-beta_current_x86_64.rpm: Header V3 DSA
signature: NOKEY, key ID 7fac5991
error: Failed dependencies:
lsb >= 3.2 is needed by google-chrome-beta-4.0.249.30-33928.x86_64
xdg-utils is needed by google-chrome-beta-4.0.249.30-33928.x86_64
$ yum list | grep -i lsb
redhat-lsb.i3863.1-12.3.EL.el5.centos  installed
redhat-lsb.x86_64  3.1-12.3.EL.el5.centos  installed

I'm not that familiar with lsb, but from what I can find, it does not
seem like it would be a good idea to install a more recent version of
lsb than the official release, or am I way off base here?

I can get xdg-utils easily enough, but it doesn't seem relevant if I
can't use the newer lsb.

So, is it possible to use lsb 3.2+ on CentOS 5.4 without breaking
anything?  Is there anything else I'd need to do, other than convert
to Fedora (not going to happen)?

Thanks.

mhr
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[CentOS] find latest version of rpms from a mirror

[john blair]

I want to write a script to find the latest version of rpm of a given package 
available from a mirror for eg: 
http://mirror.centos.org/centos/5/os/x86_64/CentOS/
Is there any existing script that does this? Or can someone give me a general 
idea on how to go about this?


  
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Re: [CentOS] find latest version of rpms from a mirror

[John R Pierce]

john blair wrote:
> I want to write a script to find the latest version of rpm of a given package 
> available from a mirror for eg: 
> http://mirror.centos.org/centos/5/os/x86_64/CentOS/
> Is there any existing script that does this? Or can someone give me a general 
> idea on how to go about this?
>   

yum list packagename


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Re: [CentOS] XFS and LVM2 (possibly in the scenario of snapshots)

[Timo Schoeler]

thus Ross Walker spake:
> On Dec 9, 2009, at 10:39 AM, Timo Schoeler  
>  wrote:
> 
>> thus Ross Walker spake:
>>> On Dec 9, 2009, at 8:05 AM, Timo Schoeler
>>>  wrote:
>>>
 Hi list,

 during the last days there was a discussion going on about the
 stability
 of XFS; though I myself used XFS heavily and didn't run into issues
 yet,
 I'd like to ask something *before* we create our next generation  
 data
 storage backend...

 Les Mikesell wrote in [0] about issues in the combination of XFS and
 LVM
 -- however, it was being discussed in context of using 32bit  
 kernels.

 What I specifically need is to run XFS (or something similar, I am
 *not*
 forced to use XFS, but it was my preference for some years now,  
 and I
 didn't have any issues with it yet) on top of LVM to be able to  
 create
 snapshots. We're talking about several file systems of a size at  
 about
 4TiByte each.

 On another place [1] I read that there were issues with that.

 Can anyone shed some light on this? Would be very appreciated.
>>> There is no problem if it is done on x86_64 with it's 8k stack  
>>> frames,
>>> but on i386 with it's 4k stack frames you could run into a stack
>>> overflow when doing it on top of stackable block devices (md raid,
>>> lvm, drbd, etc).
>>>
>>> Also since the current LVM on CentOS doesn't support barriers (next
>>> release I believe) journalling isn't safe on LVM unless you are using
>>> a storage controller with BBU write-back cache.
>>>
>>> I have heard anyways that the current implementation of barriers  
>>> isn't
>>> very performant and doesn't take into consideration controllers with
>>> BBU cache, so most people will end up mounting with nobarriers which
>>> just means they are in the same boat as they are now. Better make  
>>> sure
>>> your machine is bullet proof as a power outage or a kernel panic can
>>> spell disaster for XFS (or any other file system really).
>>>
>>> It is better to invest in a good hardware RAID controller until the
>>> whole barriers stuff is ironed out. It should really perform better
>>> then it does.
>> Thanks for your detailed explanation, that really clears things up;
>> however, I was intending to build a software RAID10 as we had really  
>> not
>> so good experiences on hw RAID controllers int the past (for all kinds
>> of phenomena).
>>
>> Would barriering here still be a problem then?
> 
> So long as LVM isn't involved it will use barriers, but I can tell you  
> you will be less then impressed by the performance.
> 
> Go for hardware RAID with BBU write-cache, go for a good hardware RAID  
> solution, look to spend $350-$700 get one that supports SAS and SATA.  
> I like the LSI MegaRAID cards with 512MB of battery backed cache.
> 
> Some cards allow you to run in JBOD mode with battery backed write- 
> back cache enabled, so if you really want software RAID you can run it  
> and still have fast, safe performance (though you spread the cache a  
> little thin across that many logical units).

Thanks for your eMail, Ross. So, reading all the stuff here I'm really 
concerned about moving all our data to such a system. The reason we're 
moving is mainly, but not only the longisch fsck UFS (FreeBSD) needs 
after a crash. XFS seemed to me to fit perfectly as I never had issues 
with fsck here. However, this discussion seems to change my mindset. So, 
what would be an alternative (if possible not using hardware RAID 
controllers, as already mentioned)? ext3 is not, here we have long fsck 
runs, too. Even ext4 seems not too good in this area...

> -Ross

Timo
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Re: [CentOS] nagios 3 packages?

[Christoph Maser]

Am Donnerstag, den 10.12.2009, 00:51 +0100 schrieb Florin Andrei:
> So, my favorite RPM repository (EPEL) only has the ancient nagios-2.12
> or so.
>
> What's the repo you use for Nagios 3?
>


The Rpmforge Repo, see
http://wiki.centos.org/AdditionalResources/Repositories/RPMForge.  We
provide nagios3 since October 2008. We also ship icinga wich ist a
nagios fork porject.

Chris


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Re: [CentOS] find latest version of rpms from a mirror

[john blair]

I should have mentioned that I am looking for a solution that I can even run 
from my debian box (i.e no yum)

--- On Thu, 12/10/09, john blair  wrote:

> From: john blair 
> Subject: [CentOS] find latest version of rpms from a mirror
> To: centos@centos.org
> Date: Thursday, December 10, 2009, 12:20 PM
> I want to write a script to find the
> latest version of rpm of a given package available from a
> mirror for eg: http://mirror.centos.org/centos/5/os/x86_64/CentOS/
> Is there any existing script that does this? Or can someone
> give me a general idea on how to go about this?
> 
> 
>       
> ___
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> 


  
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Re: [CentOS] XFS and LVM2 (possibly in the scenario of snapshots)

[Christopher Chan]

> Thanks for your eMail, Ross. So, reading all the stuff here I'm really 
> concerned about moving all our data to such a system. The reason we're 
> moving is mainly, but not only the longisch fsck UFS (FreeBSD) needs 
> after a crash. XFS seemed to me to fit perfectly as I never had issues 
> with fsck here. However, this discussion seems to change my mindset. So, 
> what would be an alternative (if possible not using hardware RAID 
> controllers, as already mentioned)? ext3 is not, here we have long fsck 
> runs, too. Even ext4 seems not too good in this area...

I thought 3ware would have been good. Their cards have been praised for 
quite some time...have things changed? What about Adaptec?
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Re: [CentOS] XFS and LVM2 (possibly in the scenario of snapshots)

[Timo Schoeler]

thus Christopher Chan spake:
>> Thanks for your eMail, Ross. So, reading all the stuff here I'm really 
>> concerned about moving all our data to such a system. The reason we're 
>> moving is mainly, but not only the longisch fsck UFS (FreeBSD) needs 
>> after a crash. XFS seemed to me to fit perfectly as I never had issues 
>> with fsck here. However, this discussion seems to change my mindset. So, 
>> what would be an alternative (if possible not using hardware RAID 
>> controllers, as already mentioned)? ext3 is not, here we have long fsck 
>> runs, too. Even ext4 seems not too good in this area...
> 
> I thought 3ware would have been good. Their cards have been praised for 
> quite some time...have things changed? What about Adaptec?

Well, for me the recommended LSI is okay as it's my favorite vendor, 
too. I used to abandon Adaptec quite a while ago and my optinion was 
confirmed when the OpenBSD vs. Adaptec discussion came up. However, the 
question on the hardware RAID's vendor is totally independent from the 
file system discussion.

I re-read XFS's FAQ on this issues, seems to me that we have to set up 
two machines in the lab, one purely software RAID driven, and one with a 
JBOD configured hardware RAID controller, and then benchmark and stress 
testing the setup.

Timo
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Re: [CentOS] XFS and LVM2 (possibly in the scenario of snapshots)

[Christopher Chan]

Timo Schoeler wrote:
> thus Christopher Chan spake:
>>> Thanks for your eMail, Ross. So, reading all the stuff here I'm really 
>>> concerned about moving all our data to such a system. The reason we're 
>>> moving is mainly, but not only the longisch fsck UFS (FreeBSD) needs 
>>> after a crash. XFS seemed to me to fit perfectly as I never had issues 
>>> with fsck here. However, this discussion seems to change my mindset. So, 
>>> what would be an alternative (if possible not using hardware RAID 
>>> controllers, as already mentioned)? ext3 is not, here we have long fsck 
>>> runs, too. Even ext4 seems not too good in this area...
>> I thought 3ware would have been good. Their cards have been praised for 
>> quite some time...have things changed? What about Adaptec?
> 
> Well, for me the recommended LSI is okay as it's my favorite vendor, 
> too. I used to abandon Adaptec quite a while ago and my optinion was 
> confirmed when the OpenBSD vs. Adaptec discussion came up. However, the 
> question on the hardware RAID's vendor is totally independent from the 
> file system discussion.

Oh yeah it is. If you use hardware raid, you do not need barriers and 
can afford to turn it off for better performance or use LVM for that matter.

> 
> I re-read XFS's FAQ on this issues, seems to me that we have to set up 
> two machines in the lab, one purely software RAID driven, and one with a 
> JBOD configured hardware RAID controller, and then benchmark and stress 
> testing the setup.

JBOD? You plan to use software raid with that? Why?!
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