Hi all,
Does anyone know of a mechanism that will allow me to have a kernel automatically reboot on panic?
When remote upgrading a kernel, the most common problems have to do with either initrd creation or some other form of not finding the root partition. Once the root partition is mounted, it is very rare to have any problems after that point.
Now, LILO has this wonderful mechanism, where you can have a certain kernel for your next boot, and a different kernel for all subsequent reboots. This is great as you can do two commands before the crucial reboot:
lilo -D failsafe
lilo -R newkernel
and the new kernel will boot once, and the failsafe kernel will boot the rest of the times. This still leaves one problem - how do you recover if the new kernel did not start properly? Today, I have to call the co-location ISP, convince them that the machine is indeed down, and ask them to reboot it. I then try to fix the problem, and reboot again, which may cause the machine to hang again, and so on and so forth.
What I'm looking for is a kernel command option (I can put it in lilo.conf) that tells it "if you panic, just reboot". This will save me the phone call in the middle, and yeild much more robust behaviour.
Anyone know of such an option?
Shachar
-- Shachar Shemesh Lingnu Open Source Consulting http://www.lingnu.com/
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