I am trying to mount a previous Ubuntu 20.04 boot drive (250GB M.2 NVMe SSD in a USB-C adapter) to a Ubuntu 20.04 machine at /mnt/foo.
However, when I try to mount the drive by doing
$ sudo mount /dev/sda3 /mnt/foo
we get the error
mount: /mnt/foo: unknown filesystem type 'LVM2_member'.
What is the correct way to mount the drive?
fdisk -l Output:
$ sudo fdisk -l
Disk /dev/loop0: 29.9 MiB, 31334400 bytes, 61200 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disk /dev/loop1: 54.98 MiB, 57626624 bytes, 112552 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disk /dev/loop2: 71.28 MiB, 74735616 bytes, 145968 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disk /dev/nvme0n1: 1.88 TiB, 2048408248320 bytes, 4000797360 sectors
Disk model: Sabrent
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disklabel type: gpt
Disk identifier: 4F5505BA-4DC5-4E54-BADB-6CA15134B2FE
Device Start End Sectors Size Type
/dev/nvme0n1p1 2048 1050623 1048576 512M EFI System
/dev/nvme0n1p2 1050624 3147775 2097152 1G Linux filesystem
/dev/nvme0n1p3 3147776 4000794623 3997646848 1.9T Linux filesystem
Disk /dev/mapper/ubuntu--vg-ubuntu--lv: 100 GiB, 107374182400 bytes, 209715200 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disk /dev/sda: 232.91 GiB, 250059350016 bytes, 488397168 sectors
Disk model:
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disklabel type: gpt
Disk identifier: 4EB53D3C-C99A-4591-A7DF-12CF5846048B
Device Start End Sectors Size Type
/dev/sda1 2048 1050623 1048576 512M EFI System
/dev/sda2 1050624 3147775 2097152 1G Linux filesystem
/dev/sda3 3147776 488394751 485246976 231.4G Linux filesystem
lvmdiskscan Output:
$ sudo lvmdiskscan
/dev/nvme0n1 [ 1.86 TiB]
/dev/loop0 [ 29.88 MiB]
/dev/nvme0n1p1 [ 512.00 MiB]
/dev/loop1 [ <54.96 MiB]
/dev/sda1 [ 512.00 MiB]
/dev/nvme0n1p2 [ 1.00 GiB]
/dev/loop2 [ 71.27 MiB]
/dev/sda2 [ 1.00 GiB]
/dev/nvme0n1p3 [ 1.86 TiB] LVM physical volume
/dev/sda3 [ 231.38 GiB] LVM physical volume
0 disks
8 partitions
0 LVM physical volume whole disks
2 LVM physical volumes
vgs Output:
VG #PV #LV #SN Attr VSize VFree
ubuntu-vg 1 1 0 wz--n- 1.86t 0
ubuntu-vg-old 1 1 0 wz--n- 231.38g 0
vgdisplay Output:
$ sudo vgdisplay
--- Volume group ---
VG Name ubuntu-vg-old
System ID
Format lvm2
Metadata Areas 1
Metadata Sequence No 4
VG Access read/write
VG Status resizable
MAX LV 0
Cur LV 1
Open LV 0
Max PV 0
Cur PV 1
Act PV 1
VG Size 231.38 GiB
PE Size 4.00 MiB
Total PE 59234
Alloc PE / Size 59234 / 231.38 GiB
Free PE / Size 0 / 0
VG UUID MUXzXK-TeF2-I723-SjZ5-I8is-s0WJ-DncRZ1
--- Volume group ---
VG Name ubuntu-vg
System ID
Format lvm2
Metadata Areas 1
Metadata Sequence No 6
VG Access read/write
VG Status resizable
MAX LV 0
Cur LV 1
Open LV 1
Max PV 0
Cur PV 1
Act PV 1
VG Size 1.86 TiB
PE Size 4.00 MiB
Total PE 487993
Alloc PE / Size 487993 / 1.86 TiB
Free PE / Size 0 / 0
VG UUID l0V9Sg-oVzo-M3bs-dC7A-WVr9-pZig-CX6a9D
After trying random commands, the following worked:
sudo vgrename <UID-of-old-VG> ubuntu-vg-old
sudo vgchange -a y
sudo mount /dev/mapper/ubuntu--vg--old-ubuntu--lv /mnt/foo
