From: Greg Byrd (gbyrd_at_yahoo.com)
Date: Fri Dec 07 2007 - 19:00:53 CET
Date: Fri, 7 Dec 2007 10:00:53 -0800 (PST) From: Greg Byrd <gbyrd@yahoo.com> Message-ID: <198217.84704.qm@web39612.mail.mud.yahoo.com> Subject: RE: [suse-sles-e] kernel update advice on SLES
Earlier this year I asked about Novell's approach to kernel updates (install versus upgrade in place), and the engineer and I agreed this is less than optimal but he said this was resolved with SLES 10. We run SLES 9 on a mainframe, which makes Novell's kernel upgrade a bigger issue (no CD for booting to a live CD and installing a good kernel).
We've found some other issues with Novell's SLES 9 that upon opening support tickets, we were told that it was resolved in SLES 10 and we needed to upgrade from SLES 9 to 10 in order to resolve the issue (ie they refused to resolve the issue). One issue is where our LDAP server is offline for weekly maintenance (NSCD exhausts open file limit), which requires hard booting all SLES 9 servers that use LDAP and this LDAP server. The resolution we've put in place, is to use cron and turn off NSCD during the weekly LDAP maintenance.
Greg
-----Original Message-----
From: Gaël Lams [mailto:lamsgael@gmail.com]
Sent: Friday, September 21, 2007 4:08 AM
To: suse-sles-e@suse.com
Subject: [suse-sles-e] kernel update advice on SLES
Hi all,
We recently set-up SLES 9 SP3 servers with the Oracle Applicationas ERP on top of it.
We setup a local you servers and will next week perform the updates. I saw several kernel updates and know that normally with yast what is performed is an rpm -U instead of an rpm-i (at least it was like this on the Professional/Opensuse version).
This means that when you reboot you only have one entry in the boot loader and in case of problem, it can be a mess to recover. I know that you could download the kernel rpms, install it (not update) and this way, in case of the problem, you just have to reboot back to the previous kernel to have a working system.
Is there a recommended way? It is safe to have it done automatically though yast?
The fact is that SP3 was released on Jan 2006 and there a really a lot of patches to be installed: using yast would be "easier" but would it be safe for kernel updates?
Kind regards,
Gaël
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