I found why it happens. The problem is how os-prober resolves UUID- mounted partitions. It uses `readlink -f`. And it works in most cases, but on my system it works like that:
$ readlink -f /dev/disk/by-uuid/b7c815db-eefe-4e08-8d62-0c68531fa8ca /dev/dm-7 So UUID resolved to /dev/dm-7 instead of isw_dahhdhgec_ASUS_OS7, so os- prober didn't test if this partition is actually mounted as '/'. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1462687 Title: update-grub creates duplicate ubuntu entries To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/grub/+bug/1462687/+subscriptions -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
