update-grub handles vg names with dashes incorrectly

[Ilkka Laukkanen]

Binary package hint: grub2

When update-grub is probing for bootable partitions from logical volumes, it creates incorrect menu entries if the volume group names have dashes in them. Apparently the parameter format for the "set root='(vg-lv)'" should be exactly the same as the device node name in /dev/mapper, or /dev/mapper/vg-lv in the above case. However, for a volume group called "vg-0" having a logical volume "root", the dash gets sorta-escaped so that the mapper node path is /dev/mapper/vg--0-root; update-grub still puts '(vg-0-root)' as the root parameter however. This causes the menu entries to become unbootable, and if the grub configuration itself resides on such an lvm volume, the whole system becomes unbootable.

[Launchpad Janitor (janitor)]

Status changed to 'Confirmed' because the bug affects multiple users.

[Marcus Tomlinson (marcustomlinson)]

This release of Ubuntu is no longer receiving maintenance updates. If this is still an issue on a maintained version of Ubuntu please let us know.

[Launchpad Janitor (janitor)]

[Expired for grub2 (Ubuntu) because there has been no activity for 60 days.]