Thanks for the reply.
pvscan of the borked internal drive yeilds this (note the distinct lack of a volume group!):
lvscan and vgscan both give "No Volume groups found". Can't run lvdisplay either, because I've got no vgname to put in. If I try 'ubuntu' (what it should be', it just says it can't find that group.
PV /dev/dm-6 lvm2 [59.20 GiB]
Total: 1 [59.20 GiB] / in use: 0 [0 ] / in no VG: 1 [59.20 GiB]
ON the other hand, pvscan of the working backup yeilds this:
PV /dev/dm-6 VG ubuntu lvm2 [59.20 GiB / 0 free]
Total: 1 [59.20 GiB] / in use: 1 [59.20 GiB] / in no VG: 0 [0 ]
ACTIVE '/dev/ubuntu/root' [55.28 GiB] inherit
ACTIVE '/dev/ubuntu/swap_1' [3.92 GiB] inherit
"lvdisplay /dev/ubuntu/root" gives
Found volume group "ubuntu" using metadata type lvm2
The backup boots if I put it in my laptop and start it up, and also mounts fine when plugged into my desktop, and is recognized in disk utility as an LVM device.
--- Logical volume ---
LV Name /dev/ubuntu/root
VG Name ubuntu
LV UUID vVIhVO-aUa8-XgSc-zd57-e0Bl-X9Sd-eqJoaQ
LV Write Access read/write
LV Status available
# open 0
LV Size 55.28 GiB
Current LE 14151
Read ahead sectors auto
- currently set to 256
Block device 252:7
The borked internal drops to initramfs if I try to boot off it, and any attempt to mount it on the desktop system results in an 'Not a mountable file system' error.
Originally Posted by steeldriver