Switch from ULN and update kernel using RHN
One of the test servers is running oracle linux, the /etc/enterprise-release is showing "Enterprise Linux Enterprise Linux AS release 4 (October Update 7)". What are the procedures to switch it to use RHN (I have some update entitlements to spare)? One main task is to upgrade current kernel version "2.6.9-78.0.17.0.1.ELxenU" (which is from oracle) to RHN's corresponding kernel version "2.6.9-78.0.22.0.1" or higher?
There are some posts out there discussing switching from RH Linux to Oracle's. The reverse may be similar but I'd like to get some definitive advises, and where to get the rpm(s) if needed (such as up2date) from RH corresponding to the server version discussed here.
Responses
Hello,
I apologize that no response has been given on this thread until now.
Unfortunately there is no method supported by Red Hat for configuring a non-Red Hat Enterprise Linux system to use RHN. The only way we recommend doing so is to back up any configuration and data and reinstall the system using RHEL installation media, then register it to RHN.
Let us know if this is something that we can assist you with.
Regards,
John Ruemker, RHCA
Red Hat Software Maintenance Engineer
Online User Groups Moderator
That is not a valid suggestion.
Thats sort of like suggesting you buy a new car to change the tires.
This should be a simple matter of something like yum upgrade redhat-release-server-6.
Thats all I had to do to convert it to ULN.
On RHEL-6 you can use "yum distro-sync full" ... and that will then get you as close as possible to where you'd be if you reinstalled.
On RHEL-5 you could install a non-distro version of yum that is newer, and use distro-sync (there are unofficial repos. with the RHEL-6 version of yum rebuilt for RHEL-5).
But on RHEL-4 there is little you can do, automatically.
John is correct about it to be the only supported method.
Yours may work, but as soon as it is going wrong Jonathan would open a support case, sosreport will show OEL rpm's and Red Hat support will start with tell him the same.
So why waist time on a method that is not supported.
Secondly why argue with a Red Hat employee.
Kind regards,
Jan Gerrit Kootstra
Late to the party, but I ran into this problem today. A genuine RHEL 7 system suddenly thought it was supposed to be on ULN and would no longer take updates from my Satellite.
I was able to get it back to RH by mounting the RHEL installation ISO and reinstalling (via rpm -Uvh --force) the rhn-setup, rhn-client-tools, and rhn-check packages and then re-registering with my Satellite Server.
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