Re: [gentoo-user] How to set up drive with many Linux distros?

[eric <eriic1@cox.net>]

On 2/26/24 04:57, gentoo-user@krasauskas.dev wrote:
> You could also write a script that keeps all the distros up to date
> from within whichever one you're currently booted by mounting
> subvolumes to /mnt or wherever, chrooting in and running the update.

To avoid grub not being able to point to a newly updated kernel on one 
of the OS's installed, I use a "custom.cfg" file in all my /boot/grub/ 
directories for each OS where the "linix" and "initrd" point to the 
symbolic links of the kernel and init files which point to the newly 
updated files on most major distributions like ubuntu, arch, suse, and 
debian. The name of the symbolic links stay the same over upgrades. It 
works great when using UUID to identify the partition that has root and 
I can always boot into any of the OS's installed no matter which one 
hijacked the MBR.


https://forums.linuxmint.com/viewtopic.php?t=315584