Please re-send as non-HTML. Thanks. Arno On Mon, Feb 15, 2016 at 17:07:35 CET, Florian Dotzer wrote: > <html><head></head><body><div style="font-family: Verdana;font-size: 12.0px;"><div>Dear Readers of the List .</div> > > <div> </div> > > <div>I had a encrypted RAID 5on my QNAP Device in /dev/md0.</div> > > <div> </div> > > <div>It worked without any problems for about 6 years . But space went low and desaster began.</div> > > <div>After adding a disk , mdadm had overwritten the header (block device /dev/md0 ) like this :</div> > > <div> </div> > > <div><span style="font-family: courier new , courier , monospace;">6d 64 61 64 6d 3a 20 61 64 64 65 64 20 2f 64 65 mdadm: added /de</span></div> > > <div><span style="font-family: courier new , courier , monospace;">76 2f 73 64 63 33 0a 00 00 00 00 00 00 00 00 00 v/sdc3.......... </span></div> > > <div><span style="font-family: courier new , courier , monospace;">00 00 00 00 00 00 00 00 <strong>63 62 63 2d 70 6c 61 69</strong> ........cbc-plai </span></div> > > <div><span style="font-family: courier new , courier , monospace;"><strong>6e </strong>00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 n............... </span></div> > > <div><span style="font-family: courier new , courier , monospace;">00 00 00 00 00 00 00 00 <strong>73 68 61 31</strong> 00 00 00 00 ........sha1.... </span></div> > > <div><span style="font-family: courier new , courier , monospace;">00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ </span></div> > > <div><span style="font-family: courier new , courier , monospace;">00 00 00 00 00 00 00 00 00 00 <strong>08 08</strong> 00 00 00 <strong>20</strong> ............... </span></div> > > <div><span style="font-family: courier new , courier , monospace;">bc 31 80 6d da a4 f0 5c ed 9f 24 96 fc 1b 72 6a </span></div> > > <div> </div> > > <div>According to the documentation on-disk-format ,</div> > > <div>magic (LUKS 0xba 0x be ) , version and cipher name seem to be overwritten.</div> > > <div> </div> > > <div>I'd like to know the possible versions ( 00 01 ? ) and cipher names </div> > > <div>(aes ?) in order to be able to reconstruct the header (fingers crossed )</div> > > <div> </div> > > <div>user support from vendor QNAP tried an hour claiming 'fs super block could not be found'</div> > > <div>and finally redirected me to 'commercial $$$upport' . </div> > > <div> </div> > > <div>QNAP advertised my Box with 'Disks can be AES-encrypted with 256 bit " so</div> > > <div>I suspect its something related with aes .</div> > > <div> </div> > > <div>(And no , I had no header backup, Ahhh !)</div> > > <div> </div> > > <div>Any helpful reply is welcome . And yes , I will make backups in the future . ;-))</div> > > <div> </div> > > <div>Greetings , Florian</div></div></body></html> > _______________________________________________ > dm-crypt mailing list > dm-crypt@xxxxxxxx > http://www.saout.de/mailman/listinfo/dm-crypt -- Arno Wagner, Dr. sc. techn., Dipl. Inform., Email: arno@xxxxxxxxxxx GnuPG: ID: CB5D9718 FP: 12D6 C03B 1B30 33BB 13CF B774 E35C 5FA1 CB5D 9718 ---- A good decision is based on knowledge and not on numbers. -- Plato 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
