System and Network configuration • Re: apt and grub-install

So they should not interfere. But you reported the opposite. So what is really happening?

The problem is the bios secure boot
in the ESP there are both debian and ubuntu, both OS's grub created theyr menu
but when I start with the ubuntu grub menu and select debian there is a shim signature error
and I can't boot debian
the same but in opposite way, happens if I start with debian grub menu

If I understand your previous posts correctly, you asked how to boot Debian from the Ubuntu boot loader. This may be possible using the "Other OS" probing support in Ubuntu's grub configuration. You should update Ubuntu's grub (in Ubuntu) every time you update Debian's kernel. Of course, this isn't practical (if you use Debian as your main OS).

I use as primary OS ubuntu
If ubuntu update-grub can probe all debian kernel versions even if debian grub is not installed, then
I could uninstall grub on Debian, but I can't because I need it to start debian due to bios security boot error

I could be wrong but, I remember to have upgraded a kernel in a live linux and for some reason grub-install failed
but the 'apt upgrade' process continued anyway

Statistics: Posted by klatls — 2024-12-02 18:33

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