我全新安装了 Ubuntu 16.04。/dev/md1包含一个 ext4 文件系统，安装在/：
/dev/md1 on / type ext4 (rw,relatime,data=ordered)
现在我想将自动文件系统检查间隔设置为一个月，但我收到一个奇怪的错误，我找不到任何有用的信息：
> tune2fs -i 1m /dev/md1
tune2fs 1.42.13 (17-May-2015)
tune2fs: Filesystem has unsupported read-only feature(s) while trying to open /dev/md1
Couldn't find valid filesystem superblock.
重启没有用。在另一台运行 Ubuntu 12.04 的机器上，同样的命令运行良好。
有人知道出了什么问题吗？
tune2fs -l /dev/md1顺便说一下，该命令运行正常。以下是其输出：
tune2fs 1.42.13 (17-May-2015)
Filesystem volume name: <none>
Last mounted on: /
Filesystem UUID: 38366a40-bbe1-476b-acfe-d271be6335eb
Filesystem magic number: 0xEF53
Filesystem revision #: 1 (dynamic)
Filesystem features: has_journal ext_attr resize_inode dir_index filetype needs_recovery extent 64bit flex_bg sparse_super large_file huge_file dir_nlink extra_isize metadata_csum
Filesystem flags: signed_directory_hash
Default mount options: user_xattr acl
Filesystem state: clean
Errors behavior: Continue
Filesystem OS type: Linux
Inode count: 8380416
Block count: 33521664
Reserved block count: 1676083
Free blocks: 32419430
Free inodes: 8312762
First block: 0
Block size: 4096
Fragment size: 4096
Group descriptor size: 64
Reserved GDT blocks: 1024
Blocks per group: 32768
Fragments per group: 32768
Inodes per group: 8192
Inode blocks per group: 512
Flex block group size: 16
Filesystem created: Thu May 31 10:01:27 2018
Last mount time: Thu May 31 10:49:41 2018
Last write time: Thu May 31 10:15:14 2018
Mount count: 7
Maximum mount count: -1
Last checked: Thu May 31 10:01:27 2018
Check interval: 0 (<none>)
Lifetime writes: 5782 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
First orphan inode: 4325378
Default directory hash: half_md4
Directory Hash Seed: 9d55d989-2c2b-4ad8-a29e-53c8798ec68e
Journal backup: inode blocks
Checksum: 0x3d9f8d23
答案1
问题是我的版本tune2fs太旧了。我从这里，那么它就起作用了。