손상된 하드 드라이브 LVM을 마운트할 수 없어 복사해야 했습니다.

Centos가 설치된 하드 드라이브가 있고 Fedora 라이브 USB를 사용하여 파일을 가져오고 싶습니다. 이에 대한 몇 가지 유용한 게시물을 찾았습니다. 처음으로 /mnt에 마운트하고 fstab 파일을 변경했을 때 다시 마운트하고 싶었지만 마운트할 수 없었고 오류가 반환되었습니다. 위에는 내가 한 모든 단계를 썼습니다.

[root@localhost ~]# lvdisplay 
--- Logical volume ---
LV Path                /dev/vg_dstkpi/lv_root
LV Name                lv_root
VG Name                vg_dstkpi
LV UUID                Sq7sV4-zQsX-0CH3-9HU2-ZTES-A6nI-hvNtfY
LV Write Access        read/write
LV Creation host, time dstkpi.dst.uz, 2016-05-14 18:35:10 -0400
LV Status              available
# open                 0
LV Size                50.00 GiB
Current LE             12800
Segments               1
Allocation             inherit
Read ahead sectors     auto
- currently set to     256
Block device           253:0

--- Logical volume ---
LV Path                /dev/vg_dstkpi/lv_home
LV Name                lv_home
VG Name                vg_dstkpi
LV UUID                5wA6g6-VfJW-g6dW-SZ7P-ncwj-at1h-c098Du
LV Write Access        read/write
LV Creation host, time dstkpi.dst.uz, 2016-05-14 18:35:30 -0400
LV Status              available
# open                 0
LV Size                94.71 GiB
Current LE             24247
Segments               1
Allocation             inherit
Read ahead sectors     auto
- currently set to     256
Block device           253:1

--- Logical volume ---
LV Path                /dev/vg_dstkpi/lv_swap
LV Name                lv_swap
VG Name                vg_dstkpi
LV UUID                aUbOVe-gbEn-LfKH-EQOu-etPN-FyOd-bCuxb3
LV Write Access        read/write
LV Creation host, time dstkpi.dst.uz, 2016-05-14 18:36:11 -0400
LV Status              available
# open                 2
LV Size                3.84 GiB
Current LE             984
Segments               1
Allocation             inherit
Read ahead sectors     auto
- currently set to     256
Block device           253:2

나중에 다음과 같이 설치하고 싶습니다.

[root@localhost ~]# mount /dev/vg_dstkpi/lv_root /mnt/rescue/
mount: wrong fs type, bad option, bad superblock on /dev/mapper/vg_dstkpi-lv_root,
   missing codepage or helper program, or other error

   In some cases useful info is found in syslog - try
   dmesg | tail or so.

로그 파일을 열었습니다.

[root@localhost ~]# dmesg | tail
[ 2116.827233] ata3.00: configured for UDMA/133
[ 2116.827249] sd 2:0:0:0: [sda] tag#0 FAILED Result: hostbyte=DID_OK driverbyte=DRIVER_SENSE
[ 2116.827252] sd 2:0:0:0: [sda] tag#0 Sense Key : Medium Error [current] 
[ 2116.827255] sd 2:0:0:0: [sda] tag#0 Add. Sense: Unrecovered read error - auto reallocate failed
[ 2116.827258] sd 2:0:0:0: [sda] tag#0 CDB: Read(10) 28 00 00 0f b0 08 00 00 08 00
[ 2116.827260] blk_update_request: I/O error, dev sda, sector 1028104
[ 2116.827278] EXT4-fs (dm-0): can't read group descriptor 0
[ 2116.827298] ata3: EH complete
[ 2116.833657] EXT4-fs (dm-0): couldn't mount as ext3 due to feature incompatibilities
[ 2116.833954] EXT4-fs (dm-0): couldn't mount as ext2 due to feature incompatibilities

나는 또한 다음을 시도했습니다.

[root@localhost ~]# e2fsck -y /dev/vg_dstkpi/lv_root 
e2fsck 1.43.1 (08-Jun-2016)
e2fsck: Attempt to read block from filesystem resulted in short read while trying to open /dev/vg_dstkpi/lv_root
Could this be a zero-length partition?