Attention
This is the documentation of the last development version. For most users, the documentation of the latest supported release is more appropriate.
How to mount LVM images
You want to read your LVM image (e.g., there is a problem where you can’t start any VMs except dom0).
1: make the image available for qubesdb. From dom0 terminal:
# Example: /dev/qubes_dom0/vm-debian-9-tmp-root
[user@dom0]$ dev=$(basename $(readlink /dev/YOUR_LVM_VG/YOUR_LVM_IMAGE))
[user@dom0]$ qubesdb-write /qubes-block-devices/$dev/desc "YOUR_LVM_IMAGE"
2: Create a new disposable VM
[user@dom0]$ qvm-run -v --dispvm=YOUR_DVM_TEMPLATE --service qubes.StartApp+xterm &
3: Attach the device to your newly created disp VM
From the GUI, or from the command line:
[user@dom0]$ qvm-block attach NEWLY_CREATED_DISPVM dom0:$dev
4: Mount the partition you want to, and do what you want with it
[user@dispXXXX]$ mount /dev/xvdiX /mnt/
5: Umount and kill the VM
[user@dispXXXX]$ umount /mnt/
6: Remove the image from qubesdb
[user@dom0]$ qubesdb-rm /qubes-block-devices/$dev/
References
Please consult this issue’s comment.