Am 10.01.2022 21:33, schrieb tbier@posteo.de:
On 10.01.2022 21:28, Erich Eckner wrote:
Maybe it would work to update the grub.cfg from crux?
I was going to say the same thing there.
With the setup I have now (grub chainloading lilo) I just run lilo on Crux and reboot directly into Crux again. So I do not need to boot Ubuntu meanwhile for updating the boot loader.
Maybe grub allows for having include files (I have not checked), then you could have two include files: one for crux and one for ubuntu - and just update the one of the currently-running system.
That should certainly work as well with grub.
Thanks for pointing me in the right direction. I have now appended these lines to /etc/grub.d/40_custom (on Ubuntu) which will be assembled to grub.cfg: menuentry "Crux Linux (no LILO)" { set root=(hd0,3) linux /boot/vmlinuz ro root=/dev/sda3 init=/sbin/init initrd /boot/early-ucode.cpio } Like this I can boot Crux from the Ubuntu grub as long as I name the kernel file always the same. It evens boots much faster than with Lilo in between :-) Lilo took several seconds to load the kernel into RAM whereas with grub it nearly starts to boot the kernel immediately. Best regards Markus Heinz