我有一个 2TB HDD，其 LVM /dev/ubuntu-vg/ubuntu-lv 无法安装。
mike@bambam:~> sudo mount /dev/ubuntu-vg/root ./mnt/mnt1
mount: /home/mike/mnt/mnt1: can't read superblock on /dev/mapper/ubuntu--vg-root.
进一步研究一下
mike@bambam:~> sudo mke2fs -n /dev/ubuntu-vg/root
mke2fs 1.46.4 (18-Aug-2021)
Creating filesystem with 240228352 4k blocks and 60063744 inodes
Filesystem UUID: 7b1f64a6-4204-4de7-806b-3d21468a8e41
Superblock backups stored on blocks:
32768, 98304, 163840, 229376, 294912, 819200, 884736, 1605632, 2654208,
4096000, 7962624, 11239424, 20480000, 23887872, 71663616, 78675968,
102400000, 214990848
mike@bambam:~> sudo dumpe2fs /dev/ubuntu-vg/root | grep -i superblock
dumpe2fs 1.46.4 (18-Aug-2021)
dumpe2fs: Input/output error while trying to open /dev/ubuntu-vg/root
Couldn't find valid filesystem superblock.
我确实考虑过在分区本身上使用 mke2fs 但放弃了
mike@bambam:~> sudo mke2fs -n /dev/sdg3
mke2fs 1.46.4 (18-Aug-2021)
/dev/sdg3 contains a LVM2_member file system
Proceed anyway? (y,N) n
其他帖子中要求的其他信息
mike@bambam:~> sudo pvscan
PV /dev/sdg3 VG ubuntu-vg lvm2 [1.82 TiB / 1.62 TiB free]
Total: 1 [1.82 TiB] / in use: 1 [1.82 TiB] / in no VG: 0 [0 ]
mike@bambam:~> sudo lvscan
ACTIVE '/dev/ubuntu-vg/ubuntu-lv' [200.00 GiB] inherit
mike@bambam:~> sudo lvs
LV VG Attr LSize Pool Origin Data% Meta% Move Log Cpy%Sync Convert
ubuntu-lv ubuntu-vg -wi-a----- 200.00g
mike@bambam:~> sudo fsck -y /dev/ubuntu-vg/ubuntu-lv
fsck from util-linux 2.37.2
e2fsck 1.46.4 (18-Aug-2021)
fsck.ext2: Input/output error while trying to open /dev/mapper/ubuntu--vg-ubuntu--lv
The superblock could not be read or does not describe a valid ext2/ext3/ext4
filesystem. If the device is valid and it really contains an ext2/ext3/ext4
filesystem (and not swap or ufs or something else), then the superblock
is corrupt, and you might try running e2fsck with an alternate superblock:
e2fsck -b 8193 <device>
or
e2fsck -b 32768 <device>
mike@bambam:~> sudo fdisk -l /dev/sdg
[sudo] password for root:
Disk /dev/sdg: 1.82 TiB, 2000398934016 bytes, 3907029168 sectors
Disk model: USB 3.0
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 4096 bytes
I/O size (minimum/optimal): 4096 bytes / 4096 bytes
Disklabel type: gpt
Disk identifier: EECFD2EC-89E8-4417-AE09-0AEA8F1A13E9
Device Start End Sectors Size Type
/dev/sdg1 2048 4095 2048 1M BIOS boot
/dev/sdg2 4096 2101247 2097152 1G Linux filesystem
/dev/sdg3 2101248 3907026943 3904925696 1.8T Linux filesystem