我从这里开始:https://help.ubuntu.com/community/FilePermissionsACLs
我看到我的磁盘上的所有挂载点都默认启用了 acl,但$ mount | grep acl
没有任何结果。
我尝试在 /etc/fstab 中明确启用 acl 并重新挂载 root,但这也不起作用。
mount
如果没有显示,acl 是否可能正在工作?我显然在文件上有 acl 条目,但我被拒绝权限。
user@host:~$ sudo tune2fs -l /dev/mapper/ubuntu--vg-ubuntu--lv
tune2fs 1.45.5 (07-Jan-2020)
Filesystem volume name: <none>
Last mounted on: /
Filesystem UUID: 6a12565d-9b50-4250-be1d-f7d9fe20461f
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: 12156928
Block count: 48627712
Reserved block count: 2431385
Free blocks: 38642088
Free inodes: 11984210
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: Mon Mar 14 19:39:19 2022
Last mount time: Thu Apr 28 12:21:11 2022
Last write time: Thu Apr 28 12:21:10 2022
Mount count: 8
Maximum mount count: -1
Last checked: Mon Mar 14 19:39:19 2022
Check interval: 0 (<none>)
Lifetime writes: 161 GB
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
答案1
是的,ACL 可以在不mount
显示的情况下工作,因为它在我的计算机上工作。我被拒绝访问的文件是损坏的符号链接。