kernel downgrade in SLES : Quick view

Author : Dhanabal S

Kernel Downgrade procedure for SLES

1.Take all necessary root filesystem backup.

2.Check for installed kernel using the command "rpm –qa|grep –i kernel"

# rpm -qa|grep -i kernel

kernel-default-2.6.32.54-0.3.1

linux-kernel-headers-2.6.32-1.4.13

kernel-default-base-2.6.32.54-0.3.1

kernel-default-devel-2.6.32.54-0.3.1

kernel-source-2.6.32.54-0.3.1

3.Downgrade the all the kernel related rpm’s except nfs kernel

Command to downgrade is

rpm -Uhv --oldpackage --nodeps

eg:  rpm –Uhv kernel-source-2.6.32.23-0.3.1.x86_64.rpm --oldpackage

where is the kernel package you wish to install.

4.Reboot the sever and boot into your downgraded kernel.