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python bad magic number_Linux resize2fs: Bad magic number in super-block错误的解决方法

萧光华
2023-12-01

Linux resize2fs: Bad magic number in super-block错误的解决方法

原创 Linux操作系统 作者:chenfeng 时间:2017-04-06 10:35:18  13377  0

[root@backup binlog]# vgdisplay

--- Volume group ---

VG Name               centos

System ID

Format                lvm2

Metadata Areas        2

Metadata Sequence No  8

VG Access             read/write

VG Status             resizable

MAX LV                0

Cur LV                3

Open LV               3

Max PV                0

Cur PV                2

Act PV                2

VG Size               2.73 TiB

PE Size               4.00 MiB

Total PE              715273

Alloc PE / Size       712822 / 2.72 TiB

Free  PE / Size       2451 / 9.57 GiB

VG UUID               6rIzMZ-cqff-oWy6-0EvS-YENe-37U9-65SunU

[root@backup binlog]# lvextend -L +4G /dev/mapper/centos-home

Size of logical volume centos/home changed from 2.66 TiB (697542 extents) to 2.66 TiB (698566 extents).

Logical volume home successfully resized.

执行resize2fs报错:

[root@backup binlog]# resize2fs /dev/mapper/centos-home

resize2fs 1.42.9 (28-Dec-2013)

resize2fs: Bad magic number in super-block 当尝试打开 /dev/mapper/centos-home 时

找不到有效的文件系统超级块.

确认文件系统是xfs:

[root@backup binlog]# cat /etc/fstab | grep centos-home

/dev/mapper/centos-home /home                   xfs     defaults        0 0

xfs用以下命令来扩磁盘空间:

[root@backup binlog]# xfs_growfs /dev/mapper/centos-home

meta-data=/dev/mapper/centos-home isize=256    agcount=6, agsize=118277632 blks

=                       sectsz=4096  attr=2, projid32bit=1

=                       crc=0        finobt=0

data     =                       bsize=4096   blocks=709040128, imaxpct=5

=                       sunit=0      swidth=0 blks

naming   =version 2              bsize=4096   ascii-ci=0 ftype=0

log      =internal               bsize=4096   blocks=231011, version=2

=                       sectsz=4096  sunit=1 blks, lazy-count=1

realtime =none                   extsz=4096   blocks=0, rtextents=0

data blocks changed from 709040128 to 715331584

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