Discussion on:

Auto-reboot Linux after a kernel panic

I don't think a reboot can help you out there, LOL?

sysctl -w kernel.panic_on_oops=1

this will call panic when there is an oops
so...auto-reboot

thanks, good post.

Very useful. However, I can't get kernel.sysrq to work properly. I can sync files and I can shutdown but the "b" option, reboot. Doesn't work. My laptop sits there as though no keys were pressed.

For this to reboot an un-attended system, what about entering password?

Can the need for password on auto-reboot be circumvented in a secure way?

Password on what? The bootloader?

If you're running an unattended system and you have
password protected booting, you'd best be really sure on
how you implement that. Grub, and lilo too I think, can
prompt for a password if you want to change from the
defaults (i.e. change which entry to boot, which
commands are given to the kernel, etc.).

If you require a password to just plain old boot on
unattended system, you have more problems than just
auto-reboots. How much fun would it be for someone
who obtained elevated privileges on your system to issue
a reboot command, or a forgetful admin? You'd be stuck
at a boot prompt waiting for a password.

Talk about a successful DoS.

so .. is there some way to enable this in the kernel config somewhere if my kernel locks up while booting after installing a new one (on a remote, rented server)

nice and helpfull