Re: Tripple boot Debian 12, Debian 13, openSUSE EFI
Richmond composed on 2025-09-17 18:14 (UTC+0100):
> Why did this all go so wrong? Why would
> Debian 13 boot without displaying Grub, even though it had a timeout of
> 5 seconds?
Grub's upstream default changed to disabling os-prober, so 13's Grub doesn't look
for anything else, and since the new installation had only one kernel to offer,
there was no reason to assume other than the sole known kernel to boot. Change
/etc/default/grub to enable os-prober, and following next update of grub.cfg, you
should find 12, 13 and openSUSE in your 13 Grub menu.
--
Evolution as taught in public schools is, like religion,
based on faith, not based on science.
Team OS/2 ** Reg. Linux User #211409 ** a11y rocks!
Felix Miata
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