原先是用着的时候突然变成只读的了，重启之后可以读取，现在重启也不行了：
mount(2) system call failed: Structure needs cleaning.

[root@g7 ~]# fsck.ext4 /dev/sdb1
e2fsck 1.45.6 (20-Mar-2020)
/dev/sdb1: recovering journal
fsck.ext4: unable to set superblock flags on /dev/sdb1


/dev/sdb1: ********** WARNING: Filesystem still has errors **********


命令fsck.ext4 -b 32768 /dev/sdb1：
...
Free inodes count wrong for group #20224 (4096, counted=4089).
Fix? yes

Directories count wrong for group #20224 (0, counted=1).
Fix? yes

Free inodes count wrong for group #47696 (4096, counted=3233).
Fix? yes

Directories count wrong for group #47696 (0, counted=2).
Fix? yes

Free inodes count wrong (244191221, counted=244019209).
Fix? yes

Padding at end of inode bitmap is not set. Fix? yes

Error writing file system info: Input/output error

/dev/sdb1: ***** FILE SYSTEM WAS MODIFIED *****
--
修改:naiTian FROM 123.127.64.*
FROM 123.127.64.*