Description of problem: eg: $ sudo guestfish --ro -i -d F13x64 Welcome to guestfish, the libguestfs filesystem interactive shell for editing virtual machine filesystems. Type: 'help' for a list of commands 'man' to read the manual 'quit' to quit the shell Operating system: Fedora release 13 (Goddard) /dev/mapper/vg_f13x64-lv_root mounted on / /dev/vda1 mounted on /boot Note /dev/mapper/vg_f13x64-lv_root should be /dev/vg_f13x64/lv_root. Version-Release number of selected component (if applicable): libguestfs 1.5.20 How reproducible: Always when the inspected guest has LVs and /etc/fstab of the guest contains a reference to /dev/mapper/...
><fs> cat /etc/fstab # # /etc/fstab # Created by anaconda on Thu Sep 16 18:13:22 2010 # # Accessible filesystems, by reference, are maintained under '/dev/disk' # See man pages fstab(5), findfs(8), mount(8) and/or blkid(8) for more info # /dev/mapper/vg_f13x64-lv_root / ext4 defaults 1 1 UUID=59336587-da50-4b87-ad47-577a0fd95498 /boot ext4 defaults 1 2 /dev/mapper/vg_f13x64-lv_swap swap swap defaults 0 0 tmpfs /dev/shm tmpfs defaults 0 0 devpts /dev/pts devpts gid=5,mode=620 0 0 sysfs /sys sysfs defaults 0 0 proc /proc proc defaults 0 0
Patch posted upstream: https://www.redhat.com/archives/libguestfs/2010-October/msg00063.html