복구 후 XFS를 마운트할 수 없습니다. 이유는 무엇입니까?

2024-5-24 • tag-icon

XFS 파일 시스템에 이상한 문제가 발생했습니다. 다음은 구체적인 시나리오입니다.

내 2TB 디스크가 XFS(I/O 오류)로 인해 손상되어 이전 디스크의 데이터를 새 디스크로 복원하기로 결정했습니다.

실행 ddrescue하고 데이터를 새 디스크에 저장하겠습니다. ddrescue204kB의 데이터를 제외하고 성공적으로 완료되었습니다. 그런 다음 새 디스크를 마운트하려고 시도했지만 성공하지 못했습니다. 아래에는 ddrescue결과와 설치 오류가 게시되어 있습니다 . 이 문제를 해결하도록 도와주세요. 나는 매우 감사하게 될 것입니다.

ddrescue결과:

# ddrescue --force -n /dev/sdc /dev/sde  
GNU ddrescue 1.16  
About to copy 2198 GB from /dev/sdc to /dev/sde  
Starting positions:  
Infile = 0 B, outfile = 0 B  
Copy Block size: 128 sectors Initial skip size: 128 sectors Sectors size: 512 Bytes  

Press Ctrl-C to interrupt  
rescued : 2198 GB, errsize : 204 kB, current rate : 1560 B/s  
Ipos : 68699 MB, errors : 15, average rate : 29103 KB/s  
Opos : 68699 MB, time since last successful read : 0 s  
Finished

디스크 드라이브

# fdisk -l  
Disk /dev/sdc: 2198.3 GB, 2198352166912 bytes 255 heads, 63 sectors/track, 267267 cylinders Units = cylinders of 16065 * 512 = 8225280 bytes

Device Boot Start End Blocks Id System

/dev/sdc1 1 267350 2147483647+ ee EFI GPT

Disk /dev/sde: 2198.3 GB, 2198352166912 bytes 255 heads, 63 sectors/track, 267267 cylinders Units = cylinders of 16065 * 512 = 8225280 bytes

Device Boot Start End Blocks Id System  
/dev/sde1 1 267350 2147483647+ ee EFI GPT

ls -l /dev/sd*

# ls -l /dev/sd*
brw-r----- 1 root disk 8,  0 Feb 28 02:00 /dev/sda  
brw-r----- 1 root disk 8,  1 Feb 28 02:00 /dev/sda1  
brw-r----- 1 root disk 8,  2 Feb 28 02:00 /dev/sda2  
brw-r----- 1 root disk 8,  3 Feb 27 18:00 /dev/sda3  
brw-r----- 1 root disk 8,  4 Feb 28 02:00 /dev/sda4  
brw-r----- 1 root disk 8,  5 Feb 28 02:00 /dev/sda5  
brw-r----- 1 root disk 8, 16 Feb 28 02:00 /dev/sdb  
brw-r----- 1 root disk 8, 17 Feb 28 02:00 /dev/sdb1  
brw-r----- 1 root disk 8, 32 Feb 28 02:00 /dev/sdc  
brw-r----- 1 root disk 8, 48 Feb 28 02:00 /dev/sdd  
brw-r----- 1 root disk 8, 49 Feb 28 02:00 /dev/sdd1  
brw-r----- 1 root disk 8, 64 Feb 28 02:00 /dev/sde

# fdisk -l 명령 내부에 /dev/dec1 및 /dev/sde1이 누락되었습니다.

별도의 인쇄

# parted -i /dev/sde print
Model: DELL PERC 5/i (scsi)  
Disk /dev/sde: 2198GB  
Sector size (logical/physical): 512B/512B  
Partition Table: msdos  

Number  Start   End     Size    Type     File system  Flags  
 1      32.3kB  2198GB  2198GB  primary  xfs                 

Information: Don't forget to update /etc/fstab, if necessary.

마운트를 시도 중

# mount -t xfs /dev/sde /mnt/mail3
mount: wrong fs type, bad option, bad superblock on /dev/sde,
       missing codepage or other error
       In some cases useful info is found in syslog - try  
       dmesg | tail  or so

dmesg, /var/log/messages 및 파일 출력

# dmesg | tail  
XFS: bad magic number  
XFS: SB validate failed  

# tail -f /var/log/messages  
Feb 28 04:09:29 mail kernel: XFS: bad magic number  
Feb 28 04:09:29 mail kernel: XFS: SB validate failed  

# file -s /dev/sde  
/dev/sde: x86 boot sector; partition 1: ID=0xee, starthead 0, startsector 1, 4294967295 sectors, extended partition table (last)\011

도와주세요. 정말 감사하겠습니다.

hfsplus로 마운트해 보세요

# mount -t hfsplus /dev/sde1 /mnt/mail3  
mount: special device /dev/sde1 does not exist

# mount -t hfsplus /dev/sde /mnt/mail3  
mount: wrong fs type, bad option, bad superblock on /dev/sde,  
missing codepage or other error  
In some cases useful info is found in syslog  
- try dmesg | tail  or so

# dmesg | tail  
hfs: unable to find HFS+ superblock

# tail -f /var/log/messages  
Feb 28 02:40:26 mail kernel: hfs: unable to find HFS+ superblock

# fdisk -l 명령 내부에 /dev/dec1 및 /dev/sde1이 누락되었습니다.

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