On 07/18/2014 12:42 AM, Joe Dougherty wrote: > I have a small embedded device with a raw nand flash using jffs2 > filesystem. I want to create a luks container on one of the jffs2 > partitions. Everything seems to work fine until I try to mount the > file system and I receive the error shown below. Here are the > commands I used to set this up: > cryptsetup luksFormat /dev/mtdblock4 --cipher=aes-cbc-essiv:sha256 > cryptsetup luksOpen /dev/mtdblock4 efs > At this point I can perform luksDump and all looks OK and the /dev/mapper/efs exists. So I continue to create filesystem: > mkfs.jffs2 -p -l --eraseblock=0x20000 --no-cleanmarkers --pagesize=0x800 -r ./userdata -o /dev/mapper/efs > Now the mount fails: > mount -o loud -t jffs2 /dev/mapper/efs /mnt > MTD: Attempt to mount non-MTD device "/dev/mapper/efs" > mount: mounting /dev/mapper/efs on /mnt failed: Invalid argument > > I have used similar commands successfully for non-jffs2 filesystems. Is this possible with jffs2? Any help appreciated. > Here's some additional version info: > cryptsetup --version > cryptsetup 1.6.2 > dmsetup --version > Library version: 1.02.76 (2012-08-07) > Driver version: 4.20.0 > uname -a > Linux m-1138 3.0.15+m-1138+gecbbdf0 #1 Tue Jul 8 08:57:12 MST 2014 armv7l GNU/Linux As you already found, there is a similar bug report https://code.google.com/p/cryptsetup/issues/detail?id=203 In this case it is almost for sure kernel bug, so maybe reporting it to appropriate kernel list (perhaps jffs related) would be better. (Adding dm-devel, maybe someone could help as well.) Milan _______________________________________________ dm-crypt mailing list dm-crypt@xxxxxxxx http://www.saout.de/mailman/listinfo/dm-crypt
