[SOLVED] ecryptfs mount - no such device

dakota · 2019-08-06 01:02:03

Hello,

I have been using ecryptfs to encrypt/decrypt a folder on my hard-drive for the last year, but for the last month (or two) I have received the following message when trying to mount:

mount: No such device

To unencrypt:

 stty -echo; printf "Passphrase: " 1>&2; read PASSWORD; stty echo; echo $PASSWORD; ) | ecryptfs-insert-wrapped-passphrase-into-keyring /home/username/.ecryptfs/wrapped-passphrase - 
Passphrase: Inserted auth tok with sig [signature] into the user session keyring

'signature' is the same value located in /home/rhurdle/.ecryptfs/secret.sig

To mount:

mount.ecryptfs_private secret
mount: No such device

secret (as defined in /home/username/.ecryptfs/secret.conf)

/home/username/.secret /home/username/personal/secret ecryptfs

The folders

file /home/username/.secret
/home/username/.secret: directory

file /home/username/personal/secret
/home/username/personal/secret: directory

Does this error mean that the folder is corrupted?

Last edited by dakota (2019-08-06 04:55:20)

Zod · 2019-08-06 01:17:37

https://bbs.archlinux.org/viewtopic.php?id=246447

Someplace to start, I found it by googling "ecryptfs mount: No such device"

dakota · 2019-08-06 02:06:56

Zod wrote:

https://bbs.archlinux.org/viewtopic.php?id=246447
Someplace to start, I found it by googling "ecryptfs mount: No such device"

Thanks. I saw that and didn't think it applied because I thought the OP was building his own kernel. But looking more closely, I think it might be the same issue.

loqs wrote:

What is the output of the following
pacman -Q linux
uname -a
modinfo ecryptfs

$ pacman -Q linux

linux 5.2.5.arch1-1

$ uname -a

Linux freckle 5.2.5-arch1-1-ARCH #1 SMP PREEMPT Wed Jul 31 08:30:34 UTC 2019 x86_64 GNU/Linux

$ modinfo ecryptfs

filename:       /lib/modules/5.2.5-arch1-1-ARCH/kernel/fs/ecryptfs/ecryptfs.ko.xz
license:        GPL
description:    eCryptfs
author:         Michael A. Halcrow <mhalcrow@us.ibm.com>
alias:          fs-ecryptfs
srcversion:     E554BD4A1F0B62B9B63899F
depends:        encrypted-keys
retpoline:      Y
intree:         Y
name:           ecryptfs
vermagic:       5.2.5-arch1-1-ARCH SMP preempt mod_unload 
sig_id:         PKCS#7
signer:         Build time autogenerated kernel key
sig_key:        3C:27:40:A0:3E:3A:F3:CB:51:F5:9C:1F:A0:A2:B6:09:D6:63:4D:8F
sig_hashalgo:   sha512
signature:      14:77:18:78:4F:90:3B:90:7D:BF:DE:8E:74:19:11:41:C6:44:38:76:
                4F:31:40:53:DA:82:66:7B:2D:AC:01:4F:B0:45:FA:83:8C:68:A6:3F:
                14:DB:F9:26:B5:AC:24:9D:97:8A:FB:1C:CB:AE:21:0A:A1:1E:3F:1F:
                62:2C:9F:BB:45:2B:8C:E5:E7:D6:97:56:46:F4:7C:27:88:29:0F:33:
                87:8E:A1:20:B8:C8:9C:D2:63:E5:95:D9:D1:2C:4B:B7:F3:31:ED:01:
                3C:F1:F6:23:70:C1:08:1E:EF:29:6C:D7:32:93:4D:28:4F:E5:3D:E8:
                51:CA:9A:3C:8C:2F:B2:9E:5E:7A:CD:89:6F:5F:12:6E:76:DF:C8:9D:
                17:12:0A:09:C3:9A:8A:35:21:D9:22:E6:1D:78:62:44:12:B0:BD:6D:
                47:3D:7F:C7:BF:73:C2:3B:DD:A9:0C:1A:E4:47:9A:FD:12:15:2F:FF:
                F4:13:77:94:45:09:6F:DE:98:E4:9F:92:D8:F0:39:FD:84:B4:3A:57:
                43:C3:5F:20:7A:C3:97:F8:82:99:38:83:83:D5:AC:CE:CC:41:BA:A0:
                09:1C:5D:87:DE:5C:34:0D:1E:9A:0E:57:B7:84:B0:60:28:D1:94:CA:
                18:5F:5F:F9:F9:42:DA:30:FA:1B:B7:42:05:DA:6E:EC:36:9C:90:9D:
                0B:09:B9:9A:D5:9D:D2:4B:30:99:D5:65:96:F0:C2:C8:68:1C:32:1C:
                C5:DA:10:52:41:03:0E:9C:B6:FA:3B:CD:74:05:3E:63:2B:3C:70:BA:
                B0:12:6A:A9:6E:6E:4D:DB:86:B9:B0:23:8E:85:85:45:B6:D7:A9:52:
                85:3D:92:D9:FD:AB:AC:04:83:44:A8:CF:D4:A8:DF:75:E9:E8:A1:27:
                CB:7E:F0:FE:03:21:C4:84:28:08:AD:4A:4D:B3:88:8C:93:7B:3E:29:
                7F:6B:7A:8D:6D:37:E6:B8:C2:93:BD:88:FD:DE:FB:70:DD:67:48:07:
                68:36:8F:24:21:12:8A:A4:EE:5D:91:A7:90:A2:C2:87:DB:2B:B6:1D:
                00:2F:6D:26:31:13:E7:D2:7E:50:AF:3A:08:51:7E:EC:F5:58:92:54:
                99:BE:86:81:D4:C8:54:09:07:5A:D7:5D:F8:02:B3:6C:D0:AD:58:50:
                0D:FB:27:FF:13:19:5E:E9:7F:CE:73:30:2C:79:6A:C2:46:AE:42:D8:
                01:2A:90:F0:61:24:7A:71:04:8B:CD:A4:6C:90:6B:A4:FF:87:32:82:
                30:85:00:BB:0D:FA:A5:DB:BE:B4:3B:CD:5E:A0:F9:C0:82:25:F4:D0:
                CD:54:7D:09:CD:71:27:E2:94:73:EE:62
parm:           ecryptfs_verbosity:Initial verbosity level (0 or 1; defaults to 0, which is Quiet) (int)
parm:           ecryptfs_message_buf_len:Number of message buffer elements (uint)
parm:           ecryptfs_message_wait_timeout:Maximum number of seconds that an operation will sleep while waiting for a message response from userspace (long)
parm:           ecryptfs_number_of_users:An estimate of the number of concurrent users of eCryptfs (uint)

loqs wrote:

What is the output of the following
Is the encrypted-keys kernel module successfully loaded?

$ sudo modprobe encrypted_keys

modprobe: ERROR: could not insert 'encrypted_keys': Input/output error

I also found this bug report which may be relevant.
https://bugzilla.kernel.org/show_bug.cgi?id=203953

Rebuilding the kernel is beyond my current abilities
... but it looks like the problem in known and is being worked on.

I guess I'll wait for the fix to be pushed out.

Cheers,

jasonwryan · 2019-08-06 02:18:30

Install the LTS kernel and see if you experience the same issue.

dakota · 2019-08-06 04:54:45

jasonwryan wrote:

Install the LTS kernel and see if you experience the same issue.

Yes, that solved the problem and allowed me to access the files that I needed. No data corruption involved. That is very comforting.

Thank you very much!

Cheers,

====================

Installing the LTS kernel was a lot easier than I expected.

1. download and install the kernel

$ sudo pacman -S linux-lts

2. modify the Syslinux bootloader to display the LTS option during boot-up

sudo nano /boot/syslinux/syslinux.cfg

... add the following lines

LABEL archlts
	MENU LABEL Arch Linux LTS
	LINUX ../vmlinuz-linux-lts
	APPEND root=/dev/sda1 rw
	INITRD ../initramfs-linux-lts.img

3. reboot and select Arch Linux LTS from boot menu

Arch Linux

#1 2019-08-06 01:02:03

[SOLVED] ecryptfs mount - no such device

#2 2019-08-06 01:17:37

Re: [SOLVED] ecryptfs mount - no such device

#3 2019-08-06 02:06:56

Re: [SOLVED] ecryptfs mount - no such device

#4 2019-08-06 02:18:30

Re: [SOLVED] ecryptfs mount - no such device

#5 2019-08-06 04:54:45

Re: [SOLVED] ecryptfs mount - no such device

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