program...@netzbasis.de (Benjamin Baier), 2018.09.08 (Sat) 00:08 (CEST):
> On Fri, 7 Sep 2018 21:00:58 +0200
> Zbyszek Żółkiewski <zbys...@onefellow.com> wrote:
> 
> > 
> > > Wiadomość napisana przez Marcus MERIGHI <mcmer-open...@tor.at> w dniu 
> > > 07.09.2018, o godz. 18:09:
> > > 
> > > $ dd bs=8192 skip=1 if=/dev/rsd99z of=backup-keydisk.img
> > > $ dd bs=8192 seek=1 if=backup-keydisk.img of=/dev/rsd99z
> > 
> > thanks for answers but that will make dump of whole 14GB - i would
> > like to shrink it to reasonable size…

I never realized that since my keydisks were always set up a la FAQ!

> Well, from reading the code a little seems the keydisk metadata is at
> offset
> SR_META_OFFSET = 8192 bytes and is SR_META_SIZE (64) * DEV_BSIZE (512
> bytes) = 32768 bytes long.
> 
> Time ran out so do what you will with it. This is untested and always
> keep a good backup.

Thanks for reading the code! this would do, then

$ dd bs=8192 skip=1 count=4 if=/dev/rsd99z of=backup-keydisk.img
                    ^^^^^^^
though I am going to test this:

$ dd bs=8192 skip=1 count=5 if=/dev/rsd99z of=backup-keydisk.img
                    ^^^^^^^

Thanks, Marcus

Reply via email to