CentOS kickstart – force kernel version

centoskickstartredhat

I'd like to kickstart some servers using a specific kernel version (slightly downrev) but can't figure out the correct syntax in the kickstart file. I've tried specifying this in the "%packages" section with both a minus-prefixed kernel package (to remove it) and an unprefixed entry but I get a multilib error message.

From kickstart file:

%packages --nobase
-kernel-2.6.32-504.23.4.el6.x86_64
kernel-2.6.32-504.16.2.el6.x86_64
...other packages...

Error message:

Protected multilib versions:
kernel-2.6.32-504.23.4.el6.x86_64 != kernel-2.6.32-504.16.2.el6.x86_64

Thanks!

Best Answer

As suggested by Petter, downgrading the kernel in the %post section works:

%post
rpm -ivh --oldpackage http://my.repo.server/centos/6.6/updates/x86_64/Packages/kernel-2.6.32-504.16.2.el6.x86_64.rpm
rpm -ivh --oldpackage http://my.repo.server/centos/6.6/updates/x86_64/Packages/kernel-firmware-2.6.32-504.16.2.el6.x86_64.rpm

Thanks!

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