Take the 2-minute tour ×
Super User is a question and answer site for computer enthusiasts and power users. It's 100% free, no registration required.

I have a remote machine with Ubuntu 12.04 and the following kernel versions installed:

:/lib/modules# ls
2.6.39.4  3.0.0-21-generic  3.2.0-25-generic  3.2.0-25-generic-pae  3.2.0-27-generic  3.2.0-27-generic-pae

I need to boot into version 2.6. Can I do it remotely?

share|improve this question

1 Answer 1

up vote 1 down vote accepted

Could prove risky if something goes wrong but basically just change your grub (check /boot/grub/grub.cfg) to include also that kernel version in the menu and put it as the default kernel (change the set default="0" to point to your 2.6 entry). And do a reboot and hope it comes back!

You could explore the "boot once" grub option to do just one boot in 2.6.x. Look here. But you may still need somebody to power cycle the PC if something goes very bad and the kernel gets stuck. But at least you may come back easily without the need of a rescue tool.

share|improve this answer

Your Answer

 
discard

By posting your answer, you agree to the privacy policy and terms of service.

Not the answer you're looking for? Browse other questions tagged or ask your own question.