[Q&A] 使用 cgroup-devices 或者 lxcfs-rw 后， debugfs 报错 #57

[neargle]

[neargle]

因为 debugfs 只支持 ext2/ext3/ext4
https://linux.die.net/man/8/debugfs

The debugfs program is an interactive file system debugger. It can be used to examine and change the state of an ext2, ext3, or ext4 file system.
device is the special file corresponding to the device containing the file system (e.g /dev/hdXX).