[bug #66797] sudo update-grub not work correct. Not finds all distribution installed on the same SSD

Matej <[email protected]> Sat, 15 Feb 2025 13:37:08 -0500 (EST)

Newsgroups	gmane.comp.boot-loaders.grub.bugs
Message-ID	<[email protected]>

Follow-up Comment #1, bug #66797 (group grub):

One from developer of Debian found source of this bug. Source if BTRFS
subvolumes 

Please find in google what is BTRFS subvolumes 
https://www.google.com/search?client=ubuntu-sn&channel=fs&q=btrfs+subvolume

Main of Ubuntu based distribution use subvolumes. Only Ubuntu Desktop not use
subvolumes. Only Ubuntu Desktop finds os-prober correct.
It is very valuable information for developers, how to repair this bug. 
More information on screenshots on this link
https://imgur.com/a/tJ0MDzU

Other my tests:
I installed more distributions on the same SSD on ext4 on the same PC. All
work correct. On every last installed distribution are automatically displayed
previous installed distributions in GRUB. On BTRFS no.
Source of issue are BTRFS subvolumes.


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