[Bug 2073751] Re: 50mounted-tests prevents os-prober to work with ThinLVM

[Guillaume]

It indeed also leaves the systems mounted rw on /var/lib/os-prober/mount
: (sys2 is the alternate volume group and system)

# lsof /dev/sys2/rootfs
COMMAND     PID USER   FD   TYPE DEVICE   SIZE/OFF NODE NAME
grub-moun 65856 root    3r   BLK 252,26 0t37912576 1107 /dev/sys2/../dm-26

# ps -ef |grep grub
root       65856       1  0 13:05 ?        00:00:00 grub-mount /dev/mapper/sys2-rootfs /var/lib/os-prober/mount

-- 
You received this bug notification because you are a member of Ubuntu
Foundations Bugs, which is subscribed to os-prober in Ubuntu.
https://bugs.launchpad.net/bugs/2073751

Title:
  50mounted-tests prevents os-prober to work with ThinLVM

Status in os-prober package in Ubuntu:
  New

Bug description:
  No os-prober entries are added to grub.cfg for alternates systems on
  ThinLVM, because of an issue with /usr/lib/linux-boot-
  probes/50mounted-tests.

  Updating line 55 from :
      type="$(grub-probe -d "$partition" -t fs)"
  to
      type="$(grub-probe -d "$partition" -t fs || echo bad)"
  fixes the issue.

  Credit is due to mikeaa on bug #1987679.

  Tested on Ubuntu 24.04.

To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/os-prober/+bug/2073751/+subscriptions