mount.ecryptfs fails with error "[-22] Invalid argument"

Asked by Milan Bouchet-Valat

Binary package hint: ecryptfs-utils

This occurs when I try mounting manually my Private dir, maybe because the passphrase is wrong:
$ keyctl clear @u
$ mount.ecryptfs ~/.Private/ /mnt/
Unable to find a list of options to parse, defaulting to interactive mount
Passphrase: [XXXX]
Error attempting to evaluate mount options: [-22] Invalid argument

That's a problem I've discovered when trying to recover my broken Private directory. It may come from a bad usage of the tool, but still I don't think this kind of mount errors should happen. That really doesn't help finding out what's really wrong!

ProblemType: Bug
Architecture: i386
Date: Wed Dec 9 11:10:42 2009
DistroRelease: Ubuntu 9.10
Package: ecryptfs-utils 81-0ubuntu3
 PATH=(custom, user)
SourcePackage: ecryptfs-utils
Uname: Linux 2.6.32-020632rc8-generic i686

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Milan Bouchet-Valat (nalimilan) said :
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Dustin Kirkland  (kirkland) said :

Please use ecryptfs-mount-private. It's a helper with a friendlier interface.

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Milan Bouchet-Valat (nalimilan) said :

The whole point is, the tool should print a meaningful error when passphrase is wrong or something fails while mounting. Even if it's an advanced tool, it shouldn't report meaningless errors.

BTW, this is really a bug report, not a question. I'm perfectly fine personally with this issue, just that I think it will mislead users in the future. You could have closed it as Won't Fix if you really think that's not worth the pain.

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