Comment 13 for bug 455709

I am having the same problem, and then suddenly after a gazillian tries, it works. It's not about the keys or encrpytion. The problem is that the "mount" command is trying to mount to an existing directory, but it fails saying "no such file or directory".

mount(2) system call failed: No such file or directory.

Btw, my ecryptfs_sig= is always forced to something I don't give.
example
I add the option -o ecryptfs_sig=blablablalba it always outputs ecryptfs_sig=27471f2ec87cf83f in my case. The fnek sig "listens" to my input or options.

Same with:
/sbin/mount.ecryptfs_private extramount: No such file or directory

This has been working for 3 years btw, I updated to 17.10 and this started happening.
All of a sudden after many tries, it mounts correctly.