[CentOS] kmod-drbd-smp (2.6.9-55.0.2.EL) has unknown symbols (kmod-drbd not).

Martin Hamant mh at accelance.fr
Tue Jul 31 12:16:54 UTC 2007

Le Tue, 31 Jul 2007 05:17:08 -0500
Johnny Hughes <johnny at centos.org> écrivait:

> Martin Hamant wrote:
> > Hi !
> > 
> > Not very blocking because the smp module loads perfectly.
> > <snip>
> OK ... there was a problem with some of the drbd modules (all except
> the smp ones).  This problem is now fixed and the changes are syncing
> to the mirrors.
> The new version is: kmod-drbd-0.7.24-2.<kernel-version>.
> The old (broken) ones have been removed.

Yes ! Thank you :)

> > (PS: I think something really needs to be done with the --exclude /
> > plus issue)
> OK ... For the drbd-kmod*.plus kernels, they are now in the CentOSPlus
> directory / Repository.  If you are using CentOSPlus kernel, you need
> to also get your module for DRBD (or XFS) from there too.
> If you are using the Base Kernel (non-Plus one) then you would get
> your DRBD Modules (or XFS modules) from extras.
> This should prevent the exclude requirement to get non-Plus kernel
> modules.
> SO ... if you need a module for the base kernel, it is in extras ...
> if you need a module for the centosplus kernel, it is in centosplus.

Sounds great.

The last problem is if "plus" and "extras" repos are both activated: it
occurs for centosbase/centosplus kernels the same way as for
kmod-drbd... because last version is determined by the text pattern :(

The centosplus repo should be activated with care...

About updating drbd modules, what is the current behavior when you issue
a "yum update" ? Is the new kmod-drbd is install automatically (like
kernels are) ? With the precedent package you'll had to install the new
one manually if you didn't want to get stuck with a new fresh default
kernel without any drbd support ^^

I'm asking this because it becomes complicated between servers which
have drbd modules installed, and others. "yum update" on a drbd-ready
machine should not be rebooted after an kernel upgrade as long as the
corresponding kmod has not been released (ie: editing grub.conf to
change default entry for a while in case of a unexpected reboot).

I don't know how it's possible to improve this, maybe a yum plugin
which could detect any drbd modules and if it's matches with
any installed kernels... what do you think ?

Thanks to you :)

Martin Hamant

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