One-time Reboot Into Alternate Kernel?
Apologies if this should be well-known, but I couldn’t find anything!
Situation: a system in a remote location, with no KVM, IPMI or iLO, and therefore no console access, only ssh. Multiple kernels listed in grub.conf.
Is there a way to reboot temporarily into one of the other kernels listed in grub.conf, without changing the default= line, so that a subsequent reboot will default back to the original kernel?
The problem I have is that having changed the default= line to select a kernel that doesn’t boot properly, I need to have someone visit the console in order manually to select the working kernel again. I would like to avoid that situation if possible.
Thanks, Tony
2 thoughts on - One-time Reboot Into Alternate Kernel?
In article <20141215113303.E0AE4A00424@mail.CentOS.org>, Rushton Martin wrote:
Excellent – just what I was looking for. Thanks!
Tony
Use “grub2-reboot”. There’s no man page, but –help will display usage.