Hi, > I would like to ask if there is a way to find out more information > about active dm-crypt mapping. > For example, i have /dev/mapper/cryptohome, and i would like to know > what device is mappet there, and what cypher, key size and hash is > used. I do not know, if there are better ways to get the information, but the following should work: 1) find out the minor device number of the mapper device (ls -l /dev/mapper) 2) take a look at the content of /sys/block/dm-???/slaves/ there you will find a symlink to another directory within the /sys/ hierachie. The "dev" node there contains the major and the minor device numbers of the mapped device. hope that helps, Lars --------------------------------------------------------------------- dm-crypt mailing list - http://www.saout.de/misc/dm-crypt/ To unsubscribe, e-mail: dm-crypt-unsubscribe@xxxxxxxx For additional commands, e-mail: dm-crypt-help@xxxxxxxx