I don't know if this is related to the problem, but I see that Jammy's
os-prober doesn't see Ubuntu installs after version 24.04.
Below is the call to os-prober on Jammy and Plucky on the same PC.
The partitions with Ubuntu 24.10 and 25.04 and the one with Debian trixie/sid
are ignored by os-prober 1.79ubuntu2
corrado@corrado-b2-jammy:~$ apt policy os-prober
os-prober:
Installed: 1.79ubuntu2
Candidate: 1.79ubuntu2
Version table:
*** 1.79ubuntu2 500
500 http://archive.ubuntu.com/ubuntu jammy/main amd64 Packages
100 /var/lib/dpkg/status
corrado@corrado-b2-jammy:~$ sudo os-prober
[sudo] password for corrado:
/dev/nvme0n1p4:Ubuntu 24.04.1 LTS (24.04):Ubuntu:linux
/dev/sda5:Ubuntu 24.04.1 LTS (24.04):Ubuntu1:linux
corrado@corrado-b2-jammy:~$
corrado@corrado-n6-pp-1217:~$ apt policy os-prober
os-prober:
Installed: 1.83ubuntu1
Candidate: 1.83ubuntu1
Version table:
*** 1.83ubuntu1 500
500 http://archive.ubuntu.com/ubuntu plucky/main amd64 Packages
100 /var/lib/dpkg/status
corrado@corrado-n6-pp-1217:~$ sudo os-prober
/dev/nvme0n1p2:Ubuntu Plucky Puffin (development branch) (25.04):Ubuntu:linux
/dev/nvme0n1p3:Ubuntu Plucky Puffin (development branch) (25.04):Ubuntu1:linux
/dev/nvme0n1p4:Ubuntu 24.04.1 LTS (24.04):Ubuntu2:linux
/dev/nvme0n1p5:Ubuntu Plucky Puffin (development branch) (25.04):Ubuntu3:linux
/dev/nvme0n1p7:Ubuntu 24.10 (24.10):Ubuntu4:linux
/dev/nvme0n1p8:Ubuntu Plucky Puffin (development branch) (25.04):Ubuntu5:linux
/dev/nvme0n1p9:Ubuntu Plucky Puffin (development branch) (25.04):Ubuntu6:linux
/dev/sda4:Debian GNU/Linux trixie/sid:Debian:linux
/dev/sda5:Ubuntu 24.04.1 LTS (24.04):Ubuntu7:linux
/dev/sdb2:Ubuntu 22.04.5 LTS (22.04):Ubuntu8:linux
corrado@corrado-n6-pp-1217:~$
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https://bugs.launchpad.net/bugs/2086843
Title:
Grub creates spurious entries in the menu
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