topic Re: Regarding downgrade package in Operating System - Linux

Regarding downgrade package

Minoru Asano — Sun, 20 May 2007 22:02:15 GMT

Hello,

A customer would like to downgrade kernel package to old one.

[ENVIRONMENT]
RHEL AS 4 update4

[SITUATION]
He has some trouble, so he has a plan to downgrade kernel package
and related package.

[QUESTION]
- Could you tell me how to downgrade kernel package ?
Is there any special method to downgrade kernel package ?
He has a plan to delete kernel package by using rpm -e command, and install old package simply.

To make sure, I attach the package list which is already installed, and downgrade list.

Thank you for advice.
Best Regards.
/Minoru

Re: Regarding downgrade package

Stuart Browne — Sun, 20 May 2007 22:52:36 GMT

Don't remove the running kernel's package. This will cause you grief.

Install the older package, modify '/boot/grub/grub.conf' and change the 'devault=' line to point to the appropriate kernel instance (0-counted from the top).

Reboot.

Re: Regarding downgrade package

dirk dierickx — Tue, 22 May 2007 01:10:14 GMT

well, afaik, by default the older kernels do not get deleted, so they are still there. you can check which are installed by simply doing 'ls /boot'.

then when rebooting the machine grub will allow you to pick one of the previous kernels as well.

Re: Regarding downgrade package

Stuart Browne — Tue, 22 May 2007 01:16:52 GMT

This is true.

rpm -q kernel{,-smp}

will also show you all kernel & SMP kernel's currently installed..