"mount -t ecryptfs" OK "ecryptfs-mount-private" Fails

[AlexGenaud]

After changing and re-wrapping my login password I am unable to ecryptfs-mount-private, while I am able to mount -t ecryptfs...

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Steps to recreate
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$ ecryptfs-wrap-passphrase .ecryptfs/wrapped-passphrase
Passphrase to wrap: [mountKey]
Wrapping passphrase: [loginPass]

$ ecryptfs-mount-private
Enter your login passphrase: [loginPass]
Inserted auth tok with sig [136d0b...] into the user session keyring
keyctl_search: Required key not available
Perhaps try the interactive 'ecryptfs-mount-private'

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What does work
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$ sudo mount -t ecryptfs .Private/ Private/ -o ecryptfs_cipher=aes,\
   ecryptfs_key_bytes=16,ecryptfs_passthrough=n,\
   ecryptfs_enable_filename_crypto=y,no_sig_cache
[sudo] password for me: [loginPass]
Passphrase: [mountKey]
Filename Encryption Key (FNEK) Signature [136d0b...]:
Attempting to mount with the following options:
  ecryptfs_unlink_sigs
  ecryptfs_fnek_sig=136d0b...
  ecryptfs_key_bytes=16
  ecryptfs_cipher=aes
  ecryptfs_sig=136d0b...
Mounted eCryptfs

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Failed rescue attempt
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$ mv .Private bak.Private
$ mv .ecryptfs bak.ecryptfs
$ rm -rf Private
$ ecryptfs-setup-private
Enter your login passphrase: [loginPass]
Enter your mount passphrase [leave blank to generate one]: [mountKey]
Enter your mount passphrase (again): [mountKey]
...Testing succeeded...
$ rm -rf .Private
$ mv bak.Private .Private
$ ecryptfs-mount-private
Enter your login passphrase: [loginPass]
Inserted auth tok with sig [136d0b...] into the user session keyring
$ ls Private
$ ls Private/
ls: cannot access Private/Desktop: No such file or directory
ls: cannot access Private/Pictures: No such file or directory

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But again, this works
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$ ecryptfs-umount-private
$ sudo mount -t ecryptfs .Private/ Private/ -o ecryptfs_cipher=aes,\
   ecryptfs_key_bytes=16,ecryptfs_passthrough=n,\
   ecryptfs_enable_filename_crypto=y,no_sig_cache
Passphrase: [mountKey]
Filename Encryption Key (FNEK) Signature [136d0b...]:
Attempting to mount with the following options:
  ecryptfs_unlink_sigs
  ecryptfs_fnek_sig=136d0b...
  ecryptfs_key_bytes=16
  ecryptfs_cipher=aes
  ecryptfs_sig=136d0b...
Mounted eCryptfs

$ ls Private/
Backup Desktop

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Environment
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ecryptfs version? (man page 2009-03-24)
Ubuntu 9.10 (#56-Ubuntu SMP Thu Jan 28)
kernel 2.6.31-19-generic
Lenovo X200

[AlexGenaud (alexgenaud)]

Only after setting my seahorse keyring password to match my login password, ecryptfs-mount-private worked. Is it required to change my password in three places?

[Martin Pool (mbp)]

I'm seeing something that may be similar to this on natty: on initial boot and gdm login, things work fine. When I ssh in and run ecryptfs-mount-private for the first time, that also works. However, if my connection expires, and I presume ~/Private is automatically unmounted, then I can no longer mount it using ecryptfs-mount-private; I get

% ecryptfs-mount-private
Enter your login passphrase:
Inserted auth tok with sig [9fb...] into the user session keyring
keyctl_search: Required key not available
Perhaps try the interactive 'ecryptfs-mount-private'

[Dustin Kirkland  (kirkland)]

Howdy all,

I'm almost positive that this is a duplicate of Bug #725862, which was fixed in ecryptfs-utils-92 on Thu, 01 Sep 2011 16:25:03.

I'm going to mark this bug a dupe right now, but if you're still experiencing this problem, please reopen or de-dupe this one.

Thanks!