Re: [OSR-devel] Fencing

[<go...@bo...>]

On Thu, 20 Dec 2007, Mark Hlawatschek wrote:

>>>> However, mkinitrd seems to mangle and rewrite my cluster.conf and remove
>>>> all the fencing devices. Is this normal? Is there anything special I
>>>> have to do to get fencing to work? I am using fence_drac, if that makes
>>>> any difference.
>>>
>>> mkinitrd shouldn't do anything to your cluster.conf. mkinitrd will always
>>> use the cluster.conf in /etc/cluster/cluster.conf. Please make sure, that
>>> the version number of the latest cluster.conf is increased and it is
>>> deployed to all cluster nodes using a "ccs_tool update
>>> /etc/cluster/cluster.conf".
>>
>> I rebuilt the initrd, and the cluster.conf that ends up in
>> /var/comoonics/chroot/etc/cluster/cluster.conf
>> is NOT the same as the one in /etc/cluster/cluster.conf
> This can happen, if the cluster.conf in the initrd has a lower version number
> than the cluster version number. If this is the case, the active cluster.conf
> with the higher version number will be used.

So it actually checks if the one in /etc/cluster is newer than the one on 
/var/comoonics/chroot/etc/cluster?

I hadn't expected that...

>> It seems to me that cluster.conf ends up getting rebuilt and mangled by
>> mkinitrd before it is folded into the initrd.
> mkinitrd is really doing nothing to the cluster.conf.

Hmm... Looking at the cluster config, it doesn't look like the one I 
wrote, even the previous version. Does anything process it and re-create 
it?

>>> If you want to use fence_drac, you need to put all required perl stuff
>>> into the chroot environment. This can be either done by
>>> 1) adding all perl stuff into the initrd or
>>> 2) adding the perl stuff only into the chroot environment during the boot
>>> process.
>>>
>>> to do this, create a file called perl.list with the following content:
>>>
>>> -->snip
>>> perl
>>> perl-libwww-perl
>>> perl-XML-Encoding
>>> perl-URI
>>> perl-HTML-Parser
>>> perl-XML-Parser
>>> perl-libxml-perl
>>> perl-Net-Telnet
>>> perl-HTML-Tagset
>>> perl-Crypt-SSLeay
>>> #####
>>> -->snap
>>>
>>>
>>>
>>> and copy it into
>>>
>>> 1) /etc/comoonics/bootimage/rpms.initrd.d/
>>> and make a new rpm
>>
>> Not sure I follow what you mean. What rpm?
> uups... I meant the initrd

Ah, OK, that makes more sense. :-)

>>> _or_
>>> 2) /etc/comoonics/bootimage-chroot/rpms.initrd.d/
>>> and run "service bootsr start"
>>
>> Run this on the booted system? What does the bootsr service do?
>
> Yes, you can run this on the booted systems. bootsr is just doing some updates
> to the chroot environment, if not already done.

OK, thanks for that.  :-)

Gordan