I was too hasty, this should have gone to the list... On Mon, Aug 24, 2009 at 08:08:57PM +0200, Arno Wagner wrote: > On Mon, Aug 24, 2009 at 05:55:37PM +0200, Milan Broz wrote: > > spamzad@xxxxxxxxxxxxxx wrote: > > > Something must have overwritten the header (posted it at the bottom) - > > > and I have no clue what. > > > That's exactly my question now: might it be a bug in cryptsetup or can > > > i rule that out? > > > > Cryptsetup never write empty first sectors except explicit LUKS format. > > (Of course this can very rarely happen if hw/driver problem appears...) > > > > But see crypttab here - you have tmp device created as regular > > encrypted device > > with random key - are you sure that kernel _cannot_ swap sda & sdb and > > your system just formats temp device here? > > I had that happen to me. Nasty. The BIOS seemd to modify disk order > when booting from a different drive via the bootup boot device > selection. > > One simple way to get around this is to create one-drive RAID1 > devices and then use them. No moving by the kernel on these. > > Arno > > > > > > # <target name> <source device> <key file> <options> > > > home /dev/sdb2 none luks > > > ctmp /dev/sda2 /dev/urandom > > > tmp,cipher=aes-cbc-essiv:sha256 > > > cswap /dev/sda5 /dev/urandom > > > swap,cipher=aes-cbc-essiv:sha256 > > > > Milan > > -- > > mbroz@xxxxxxxxxx > > > > _______________________________________________ > > 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 > ---- > Cuddly UI's are the manifestation of wishful thinking. -- Dylan Evans > > If it's in the news, don't worry about it. The very definition of > "news" is "something that hardly ever happens." -- Bruce Schneier -- 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 ---- Cuddly UI's are the manifestation of wishful thinking. -- Dylan Evans If it's in the news, don't worry about it. The very definition of "news" is "something that hardly ever happens." -- Bruce Schneier _______________________________________________ dm-crypt mailing list dm-crypt@xxxxxxxx http://www.saout.de/mailman/listinfo/dm-crypt
