Hello, when i try to mount a linux file system that was encrypted
using cryptsetup i get the following error

debian:/# mount /dev/sdb3

Command sukey slot 0
mount: u moet een bestandssysteemsoort aangeven
mount failed with run_sync status 32
Command failed: Device busy
mount.crypto_LUKS(crypto-dmc.c:168): Could not unload dm-crypt device "/dev/mapper/_dev_sdb3", cryptsetup returned HXproc status 240

"mount: u moet een bestandssysteemsoort aangeven" is dutch for
"you must specify filesystem type"

u used the correct password

any suggestions??

peace,

dagmar

Does /dev/mapper/_dev_sdb3 exist? What happens if you try to mount that?

i get:

"mount: u moet een bestandssysteemsoort aangeven"

once again.

What is the history of this encrypted partition? Did you just create it or has it been in service for some time?

If you just created it then it (probably) doesn't have a file system yet.

I did:

debian:/# mkfs.ext3 /dev/sdb3
debian:/# cryptsetup luksFormat /dev/sdb3

i gave a password

You did that backwards.

First you encrypt the partition, then you map it to a virtual device, then you create a file system on the virtual device.

Okay, i tried again, first i needed to reboot, because the device was busy.

i used "cryptsetup luksFormat /dev/sdb3"

and seemed to work.

after that u couldnt reach "/dev/mapper/_dev_sdb3"

i tried to mount /dev/sdb3, and got the error again.

from there the mapper file showed up in "/dev/mapper/_dev_sdb3

so i did "mkfs.ext3 /dev/mapper/_dev_sdb3"

i still couldnt mount it so i rebooted again.

after that reboot i mounted /dev/sdb3 om /mnt3 and gave the password

it seems to work, great thanks!!!

You may want to run cryptsetup status /dev/mapper/<device> to see if it really is encrypted.

It says:

/dev/mapper//dev/mapper/_dev_sdb3 is active:
cipher: aes-cbc-essiv:sha256
keysize: 128 bits
device: /dev/sdb3
offset: 1032 sectors
size: 104871288 sectors
mode: read/write


but maybe i put an ordinary .txt file on the partition, cat /dev/sdb3 and use grep with contents of the .txt file
and see if contents show up, to recognize is the partition is really encrypted ??

Yes. You have succeeded!

You put files onto the encrypted partition through the mount point, just like an unencrypted partition. I think you said that you mount it on /mnt3 so that is the path to the mounted encrypted partition.

solved