cryptsetup-luks error

flying-tuxman · 10-10-2006, 09:14 PM

hi, Im trying to use the cryptsetup-luks-1.0.3 module on slax 5.1.8.
I check that the module is loeades using modprobe dm_crypt and everything seems to be fine.
however, then I get to the step of setting up the crypted-device I get the following error:

slax:~# cryptsetup -c aes -y create dm5 /dev/loop18
Command failed: No setup backend available

I thin I have all the libraries needed and I had cryptsetup-luks working on an older Slax (which of course is no longer around).

any clue of what am I doing wrong?

LFS · 11-20-2006, 05:43 AM

I shortly had the same problem, while trying to get cryptsetup with luks running under LinuxFromScratch.

Quote:

bash-3.1# cryptsetup luksOpen /dev/sda1 mt
Command failed: No setup backend available

Finally, it is indeed on option missing in the build-process. the "libdevmapper"

To fix it just compile the cryptsetup-luks again and add the option --enable-libdevmapper to ./configure.

After make, and make install everything is fine..

Have fun

flying-tuxman · 11-20-2006, 11:08 AM

thanks for the tip,
in my case I solved it using the static cryptsetup source package rather than the dynamic one.