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【问题解决】GParted ext4分区显示红色感叹号,Journal superblock magic number invalid 错误

2021/8/21 14:24:58 浏览:

问题:

  • GParted ext4分区显示红色感叹号,Journal superblock magic number invalid 错误。
  • 在分区上右键执行 检查 修复无效。
  • sudo mount /dev/sdb2 /mnt/ 无法挂载成功
    在这里插入图片描述
    在这里插入图片描述

错误信息:

在这里插入图片描述

<i>Filesystem volume name:   <none>
Last mounted on:          <not available>
Filesystem UUID:          b11756c8-36d0-4612-89b1-a33f016ba277
Filesystem magic number:  0xEF53
Filesystem revision #:    1 (dynamic)
Filesystem features:      has_journal ext_attr resize_inode dir_index filetype extent 64bit flex_bg sparse_super large_file huge_file uninit_bg dir_nlink extra_isize
Filesystem flags:         signed_directory_hash 
Default mount options:    user_xattr acl
Filesystem state:         clean
Errors behavior:          Continue
Filesystem OS type:       Linux
Inode count:              483328
Block count:              1933056
Reserved block count:     96652
Free blocks:              1877835
Free inodes:              483317
First block:              0
Block size:               4096
Fragment size:            4096
Group descriptor size:    64
Reserved GDT blocks:      943
Blocks per group:         32768
Fragments per group:      32768
Inodes per group:         8192
Inode blocks per group:   512
Flex block group size:    16
Filesystem created:       Sat Aug 21 11:45:27 2021
Last mount time:          n/a
Last write time:          Sat Aug 21 11:49:37 2021
Mount count:              0
Maximum mount count:      -1
Last checked:             Sat Aug 21 11:49:37 2021
Check interval:           0 (<none>)
Lifetime writes:          196 MB
Reserved blocks uid:      0 (user root)
First inode:              11
Inode size:	          256
Required extra isize:     32
Desired extra isize:      32
Journal inode:            8
Default directory hash:   half_md4
Directory Hash Seed:      1d83fb2f-1b69-4d3b-8524-1a52667eeca0
Journal backup:           inode blocks</i>

<i>dumpe2fs 1.44.1 (24-Mar-2018)
Journal superblock magic number invalid!</i>

<i>无法读取此文件系统上的内容!
因为此操作可能不可用。
原因可能是缺少某个软件包。
支持 ext4 文件系统需要下列软件包:e2fsprogs v1.41+。</i>

原因:

新的操作系统上使用系统自带的 mkfs.ext4 对文件系统进行了格式化,默认会使用一些新的的特性,这些新的特性在旧的系统上是无法使用的,即在旧的内核上不支持。

这个是不支持 has_journal 特性。


解决:

# 查看文件系统特性
sudo tune2fs -l /dev/sdb2

# 去除has_journal特性
sudo tune2fs -O ^has_journal /dev/sdb2

# 再次查看文件系统特性 has_journal是否删除
sudo tune2fs -l /dev/sdb2

注:如果要添加has_journal特性,指令是sudo tune2fs -O has_journal /dev/sdb2,这里不要使用。


执行日志:

步骤一:

pjw@pjw-virtual-machine:~$ sudo tune2fs -l /dev/sdb2
[sudo] pjw 的密码: 
tune2fs 1.44.1 (24-Mar-2018)
Filesystem volume name:   <none>
Last mounted on:          <not available>
Filesystem UUID:          b11756c8-36d0-4612-89b1-a33f016ba277
Filesystem magic number:  0xEF53
Filesystem revision #:    1 (dynamic)
Filesystem features:      has_journal ext_attr resize_inode dir_index filetype extent 64bit flex_bg sparse_super large_file huge_file uninit_bg dir_nlink extra_isize
Filesystem flags:         signed_directory_hash 
Default mount options:    user_xattr acl
Filesystem state:         clean
Errors behavior:          Continue
Filesystem OS type:       Linux
Inode count:              483328
Block count:              1933056
Reserved block count:     96652
Free blocks:              1877835
Free inodes:              483317
First block:              0
Block size:               4096
Fragment size:            4096
Group descriptor size:    64
Reserved GDT blocks:      943
Blocks per group:         32768
Fragments per group:      32768
Inodes per group:         8192
Inode blocks per group:   512
Flex block group size:    16
Filesystem created:       Sat Aug 21 11:45:27 2021
Last mount time:          n/a
Last write time:          Sat Aug 21 13:39:27 2021
Mount count:              0
Maximum mount count:      -1
Last checked:             Sat Aug 21 13:39:27 2021
Check interval:           0 (<none>)
Lifetime writes:          324 MB
Reserved blocks uid:      0 (user root)
Reserved blocks gid:      0 (group root)
First inode:              11
Inode size:	          256
Required extra isize:     32
Desired extra isize:      32
Journal inode:            8
Default directory hash:   half_md4
Directory Hash Seed:      1d83fb2f-1b69-4d3b-8524-1a52667eeca0
Journal backup:           inode blocks

步骤二:

pjw@pjw-virtual-machine:~$ sudo tune2fs -O ^has_journal /dev/sdb2
tune2fs 1.44.1 (24-Mar-2018)

步骤三:

pjw@pjw-virtual-machine:~$ sudo tune2fs -l /dev/sdb2

tune2fs 1.44.1 (24-Mar-2018)
Filesystem volume name:   <none>
Last mounted on:          <not available>
Filesystem UUID:          b11756c8-36d0-4612-89b1-a33f016ba277
Filesystem magic number:  0xEF53
Filesystem revision #:    1 (dynamic)
Filesystem features:      ext_attr resize_inode dir_index filetype extent 64bit flex_bg sparse_super large_file huge_file uninit_bg dir_nlink extra_isize
Filesystem flags:         signed_directory_hash 
Default mount options:    user_xattr acl
Filesystem state:         clean
Errors behavior:          Continue
Filesystem OS type:       Linux
Inode count:              483328
Block count:              1933056
Reserved block count:     96652
Free blocks:              1894219
Free inodes:              483317
First block:              0
Block size:               4096
Fragment size:            4096
Group descriptor size:    64
Reserved GDT blocks:      943
Blocks per group:         32768
Fragments per group:      32768
Inodes per group:         8192
Inode blocks per group:   512
Flex block group size:    16
Filesystem created:       Sat Aug 21 11:45:27 2021
Last mount time:          n/a
Last write time:          Sat Aug 21 13:42:45 2021
Mount count:              0
Maximum mount count:      -1
Last checked:             Sat Aug 21 13:39:27 2021
Check interval:           0 (<none>)
Lifetime writes:          388 MB
Reserved blocks uid:      0 (user root)
Reserved blocks gid:      0 (group root)
First inode:              11
Inode size:	          256
Required extra isize:     32
Desired extra isize:      32
Default directory hash:   half_md4
Directory Hash Seed:      1d83fb2f-1b69-4d3b-8524-1a52667eeca0
Journal backup:           inode blocks

处理结果:

处理后刷新一下设备,如图:
在这里插入图片描述
在这里插入图片描述
然后执行 sudo mount /dev/sdb2 /mnt/ 挂载成功:
在这里插入图片描述

其他问题与参考
【问题解决】报错:EXT4-fs (mmcblk0p2): couldn‘t mount RDWR because of unsupported optional features (400)
linux操作系统故障处理-ext4文件系统超级块损坏修复
解决 EXT4 使用无法挂载

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