umount -f 有效但目标正忙（而且 GParted 无法成功检查它）

Question

尝试umount -f /dev/sda7按照这里所说的去做sudo e2fsck -C0 -p -f -v /dev/sda7基于的评论我之前的问题我收到此错误：

root@ubuntu:~# umount -f  /dev/sda7
umount: /dev/sda7: not mounted.
root@ubuntu:~# sudo e2fsck -C0 -p -f -v /dev/sda7
/dev/sda7 is in use.
e2fsck: Cannot continue, aborting.


root@ubuntu:~# dmsetup ls
No devices found

也无法通过 GParted 成功检查，如下所示：

还基于这个帖子我没有得到任何输出！：

如果可能的话，让我们定位/识别繁忙的进程，终止该进程，然后卸载 samba 共享以最大限度地减少损害。

lsof | grep '<mountpoint of /dev/sda1>' (or whatever the mounted device is)

pkill target_process (kills busy proc. by name | kill PID | killall target_process)

umount /dev/sda1 (or whatever the mounted device is)

lsof: WARNING: can't stat() fuse.gvfsd-fuse file system /run/user/999/gvfs
      Output information may be incomplete.
root@ubuntu:~# lsof | grep /dev/sda7
lsof: WARNING: can't stat() fuse.gvfsd-fuse file system /run/user/999/gvfs
      Output information may be incomplete.

也无法/dev/sda7通过 GParted 格式化：

谢谢。