dm-crypt on slackware 13
 

hey,
i am currently trying to get dm-crypt working on my slackware 13. i have another windows partition installed on my machine. Now:

"# cryptsetup -yv -c aes -s 256 create sda4-aes /dev/sda4" says:

"Enter passphrase:
Verify passphrase:
Command failed: device-mapper: reload ioctl failed: Invalid argument"

"modprobe dm-mod":
"FATAL: Module dm_mod not found."

in syslog:

[...]
Sep 13 23:23:24 slackDesktop kernel: device-mapper: table: 253:0: crypt: Device lookup failed
Sep 13 23:23:24 slackDesktop kernel: device-mapper: ioctl: error adding target to table
Sep 13 23:23:24 slackDesktop kernel: device-mapper: ioctl: device doesn't appear to be in the dev hash table.
Sep 13 23:35:20 slackDesktop kernel: device-mapper: table: 253:0: crypt: Device lookup failed
Sep 13 23:35:20 slackDesktop kernel: device-mapper: ioctl: error adding target to table
Sep 13 23:35:20 slackDesktop kernel: device-mapper: ioctl: device doesn't appear to be in the dev hash table.
Sep 13 23:35:47 slackDesktop kernel: device-mapper: table: 253:0: crypt: Device lookup failed
Sep 13 23:35:47 slackDesktop kernel: device-mapper: ioctl: error adding target to table
Sep 13 23:35:47 slackDesktop kernel: device-mapper: ioctl: device doesn't appear to be in the dev hash table.
Sep 14 00:01:12 slackDesktop kernel: scsi_dh: exports duplicate symbol scsi_dh_detach (owned by kernel)
Sep 14 00:01:20 slackDesktop kernel: scsi_dh: exports duplicate symbol scsi_dh_detach (owned by kernel)
Sep 14 00:01:26 slackDesktop kernel: device-mapper: snapshots: snapshot target register failed -17
Sep 14 00:01:57 slackDesktop kernel: device-mapper: table: 253:0: crypt: Device lookup failed
Sep 14 00:01:57 slackDesktop kernel: device-mapper: ioctl: error adding target to table
Sep 14 00:01:57 slackDesktop kernel: device-mapper: ioctl: device doesn't appear to be in the dev hash table.
Sep 14 00:03:20 slackDesktop kernel: device-mapper: table: 253:0: crypt: Device lookup failed
Sep 14 00:03:20 slackDesktop kernel: device-mapper: ioctl: error adding target to table
Sep 14 00:03:20 slackDesktop kernel: device-mapper: ioctl: device doesn't appear to be in the dev hash table.
Sep 14 00:19:11 slackDesktop kernel: device-mapper: table: 253:1: crypt: Device lookup failed
Sep 14 00:19:11 slackDesktop kernel: device-mapper: ioctl: error adding target to table
Sep 14 00:19:11 slackDesktop kernel: device-mapper: ioctl: device doesn't appear to be in the dev hash table.
[...]

maybe i am completely wrong? my final goal is to get truecrypt as bootmanager running and then choose between windows and slackware (while win is encrypted with truecrypt and slack with dm-crypt)

so, if you have any other solutions for pre-boot crypting the dualboot system... feel free to tell me :)

thanks in advance...

lg,
compul

Readme_crypt.txt
 

Hello,

File README_CRYPT.TXT available at the root directory of DVD or first installation CD might be of help.

There is a section "Encrypted root filesystem" that deals with encrypting the whole Slackware.

However it does not deal with windows encryption.