Multi-Boot btrfs grub not updating

[TwoFistedJustice]

I have my system set to multi boot different flavors with btrfs. It works pretty well, normally.

I just installed Kubuntu 24.04 to @ and @home, leaving all my other distros intact. My primary booting OS is Kubuntu 22.04

Ku24 did not show up on the boot menu. So I mounted the @ subvolume from inside Ku22 and dug around with Krusader to see what was going on.

Kubuntu 24.04 is missing both:

• boot/grub/grub.cfg file
• boot/efi/ directory where the EFI boot.cfg resides on 22.04

It DOES have /etc/default/grub

I ran

sudo grub-mkconfig

and

sudo update-grub

but there was no change.

How do I update grub to add Kubuntu 24.04 to grub?

[Snowhog]

Grub has OS Prober disabled by default.

See https://askubuntu.com/questions/1475...able-os-prober