Finding ecrypt-recover-private mountpoint

Question

After heavily struggling on mounting my ecrypted hdd, I now want to securely unmount the recovered hdd. I did it as proposed in this question.

It was mounted by using

$user> cd /media/$user/exthdd/home/.ecryptfs/$user/
$user> sudo ecryptfs-recover-private .Private

The drive was then mounted under /tmp/$hash/ in readonly mode. Now I want to unmount the drive but

$user> sudo ecryptfs-umount-private ./Private
fopen: No such file or directory
Cannot chdir into mountpoint.

How does it work? I can't find any helpful informations on that in the manual nor online.

Thank you very much for your help

Answer 1

I tried with sudo umount.ecryptfs /tmp/ecryptfs.xyz and it works.

You might have the following message :
Could not unlink the key(s) from your keying. Please use 'keyctl unlink' if you wish to remove the key(s). Proceeding with umount.

You can do sudo keyctl clear @u to clear the keys.