I think the issue here is that mkfs.ext2 calls fsync(), but for some reason fsync() does not flush to disk or only flushes one layer. I would expect that is a current bug/"feature" of the device-mapper, although I dimly remember there were issues with fsync() itself. Better leave the sync in there for the time being. Arno On Tue, Jan 10, 2012 at 01:51:21PM +0100, Toralf F??rster wrote: > WRT to this discussion: > https://forums.gentoo.org/viewtopic-p-6925154.html#6925154 > > I'm wondering whether a command sequence like the follwoing needs a sync or > not : > $> mkfs.ext2 /dev/mapper/foo && sync && cryptsetup luksClose foo > > -- > MfG/Sincerely > Toralf F??rster > pgp finger print: 7B1A 07F4 EC82 0F90 D4C2 8936 872A E508 7DB6 9DA3 > _______________________________________________ > dm-crypt mailing list > dm-crypt@xxxxxxxx > http://www.saout.de/mailman/listinfo/dm-crypt -- Arno Wagner, Dr. sc. techn., Dipl. Inform., CISSP -- Email: arno@xxxxxxxxxxx GnuPG: ID: 1E25338F FP: 0C30 5782 9D93 F785 E79C 0296 797F 6B50 1E25 338F ---- One of the painful things about our time is that those who feel certainty are stupid, and those with any imagination and understanding are filled with doubt and indecision. -- Bertrand Russell _______________________________________________ dm-crypt mailing list dm-crypt@xxxxxxxx http://www.saout.de/mailman/listinfo/dm-crypt