vgchange -a y
# Mount the root filesystem on /mnt/root. If it's a physical
-# device then we want to mount (eg) /dev/mapper/snap_sda1.
-# If it's a LVM device (which it probably won't be for Linux because
-# Linux doesn't support it) then we can just mount the LVM
-# partition.
+# device then we want to mount (eg) /dev/mapper/snap_sda2.
+# If it's a LVM device then we can just mount the LVM partition.
log mount $root_filesystem as /mnt/root