Cannot mount Truecrypt volume (device-mapper error)

legolas558 · 2011-02-12 09:58:07

I have a 1TB external USB disk (externally powered) and I have created 3 partitions on it:

Disk /dev/sdb: 1000.2 GB, 1000202043392 bytes
255 heads, 63 sectors/track, 121600 cylinders, total 1953519616 sectors
Units = sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Device Boot Start End Blocks Id System
/dev/sdb1 2048 696322047 348160000 7 HPFS/NTFS
/dev/sdb2 1683384320 1744824319 30720000 83 Linux
/dev/sdb3 1744824320 1953517567 104346624 7 HPFS/NTFS

The last partition, /dev/sdb3, has been formatted with Truecrypt 7.0a and I'd like to mount it, but truecrypt reports the following error:

device-mapper: reload ioctl failed: No such file or directory
Command failed

I am getting the same error with my custom kernel and with stock Arch Linux kernel; what can it be? Can somebody please help me to narrow down this issue?

Thanks

legolas558 · 2011-02-12 09:58:48

Also running dmsetup ls as root after the above-mentioned error will result in:

sudo dmsetup ls
truecrypt1_1 (254, 0)
truecrypt1_0 (254, 1)

metzengerstein · 2011-02-12 19:07:15

Can you post the output of "dmsetup info /dev/mapper/truecrypt1_1" and the same with truecrypt1_0 ?
Sure you are trying to mount the mapping instead of the encrypted device (/dev/sdb3)?

legolas558 · 2011-02-15 06:18:11

Ehm..I am trying to mount the device (/dev/sdb3), not the mapper! Although I can see that with file-based truecrypt container the mapper gets mounted. Shan't truecrypt create the mapper and mount that for me in case I select a device?

This is the information of the two mappings created (2_0 and 2_1 since I had already mounted a file-based container):

Name: truecrypt2_0
State: ACTIVE
Read Ahead: 256
Tables present: LIVE
Open count: 0
Event number: 0
Major, minor: 254, 2
Number of targets: 1

Name: truecrypt2_1
State: ACTIVE
Read Ahead: 256
Tables present: LIVE
Open count: 1
Event number: 0
Major, minor: 254, 1
Number of targets: 1

None of them gets mounted after I get the mentioned error; maybe truecrypt is expecting a dm feature which I have not enabled in my kernel?

Arch Linux

#1 2011-02-12 09:58:07

Cannot mount Truecrypt volume (device-mapper error)

#2 2011-02-12 09:58:48

Re: Cannot mount Truecrypt volume (device-mapper error)

#3 2011-02-12 19:07:15

Re: Cannot mount Truecrypt volume (device-mapper error)

#4 2011-02-15 06:18:11

Re: Cannot mount Truecrypt volume (device-mapper error)

Board footer