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-   -   upgrade RHEL 4.3 to RHEL 4.8 to fix CIFS bug - best practice? (http://www.linuxquestions.org/questions/linux-enterprise-47/upgrade-rhel-4-3-to-rhel-4-8-to-fix-cifs-bug-best-practice-797413/)

jaredk51 03-23-2010 06:37 PM

upgrade RHEL 4.3 to RHEL 4.8 to fix CIFS bug - best practice?
 
I need to upgrade 113 servers, not necessarily all at once, running RHEL 4.3 to RHEL 4.8 in order to resolve kernel errors like these:

Mar 23 14:21:59 <hostname> kernel: CIFS VFS: No response buffer
Mar 23 14:21:59 <hostname> kernel: CIFS VFS: Send error in read = -11
Mar 23 14:22:00 <hostname> kernel: CIFS VFS: Send error in read = -9
Mar 22 22:00:07 <hostname> kernel: CIFS VFS: Send error in FindClose = -11

I've read this is fixed in RHEL4.8 and my RHEL4.8 boxes are not experiencing the error.
So I'm curious what people think is the best practice to upgrade RHEL4.3 to RHEL4.8.

I can mount the 4.8 DVD ISO virtually thru ILO and upgrade that way. Time consuming but I have the time... no hurry on this non-crit kernel error.
Or.. WOuld it be easier/better to create a YUM repo with the 4.8 ISO DVD and use YUM to upgrade? Any thoughts on this process would be greatly appreciated.

Thanks in advance

Jk

FragInHell 03-23-2010 07:48 PM

If your running RHEL do you have update subscriptions, then all you need to is
up2date -u to update each one

jaredk51 03-24-2010 02:59 AM

forgot 1 major detail
 
These hosts do not have internet connection.

FragInHell 03-24-2010 05:35 PM

Seeing as you have so many servers to upgrade I would consider setting up some sort of proxy so you can do it via the up2date method.
yum is not support on RHEL4 (although you can install it I think).
Also I'm assuming there is a number of production systems too, have you contacted Red Hat maybe they have a recommended solution to this problem.

chrism01 03-24-2010 08:55 PM

For that many servers, might be worth looking at RH Satellite server; gives total ctrl over repos/rebuilds; no internet reqd. Not sure it if handles RHEL 4.x; it does RHEL 5.x.
You should phone RH and ask.

FragInHell 03-24-2010 08:57 PM

we use satellite, its great and will manage 4.x and 5.x as well. However its a paid for product and then you have to buy additional management entitlements per servers, so its a faily costly system to setup. But yes its very good and gives you total control.
You could also look at spacewalk which is the open source free version.

insamniac 04-19-2010 05:35 AM

I'm currently working on a similar problem. I don't have nearly as many servers to update, but they aren't connected directly to the internet. I just installed yum (needed like 4 dependencies) and createrepo using the rpm command. You can get them from http://dag.wieers.com/rpm/packages/. Then i used createrepo to make the repository, and edited yum.conf to point to the directory where the repo was created. I believe the line is baseurl=file:///path/to/dir whee dir contains the 'repodata' folder that was created by createrepo. Then all you have to do is run 'yum update'.

edit: I did this to upgrade from 4.3 to 4.8 and didn't get any problems. I updated all the packages and then ran 'yum install kernel' after, and modified grub.conf to point to it (yum won't do this automatically). Everything seems to have gone fine..


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