To be a better coder
分类: LINUX
2018-05-29 15:37:03
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分类: 系统硬件问题综合 |
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badblocks -sv /dev/sdb
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[root@ad4 ~]# fsck -t ext4 /dev/sdb
fsck from util-linux-ng 2.17.2
e2fsck 1.41.12 (17-May-2010)
fsck.ext4: Superblock invalid, trying backup blocks...
fsck.ext4: Bad magic number in super-block while trying to open /dev/sdb
The superblock could not be read or does not describe a correct ext2
filesystem. If the device is valid and it really contains an ext2
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
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[root@ad4 ~]# mke2fs -n /dev/sdb
mke2fs 1.41.12 (17-May-2010)
/dev/sdb is entire device, not just one partition!
Proceed anyway? (y,n) y
Filesystem label=
OS type: Linux
Block size=4096 (log=2)
Fragment size=4096 (log=2)
Stride=1 blocks, Stripe width=0 blocks
122093568 inodes, 488364854 blocks
24418242 blocks (5.00%) reserved for the super user
First data block=0
Maximum filesystem blocks=4294967296
14904 block groups
32768 blocks per group, 32768 fragments per group
8192 inodes per group
Superblock backups stored on blocks:
32768, 98304, 163840, 229376, 294912, 819200, 884736, 1605632, 2654208,
4096000, 7962624, 11239424, 20480000, 23887872, 71663616, 78675968,
102400000, 214990848
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e2fsck -b 214990848 -y /dev/sdb
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