Re: [Libreboot] I found a workaround to cryptomount problem with DVD drive

[Daniel Tarrero]

ey! that got all sense 8) everybody is kung-fu fighting this morning =)

seem that, given the dvd is attached, the device mapping might change
and mess up grub if its configured to point to "the old style" namming
convention (something like hd(0,0) or hd(1,0) i think). This namming can
change when you (re)move hardware.

As you point us, using the suuuuuuuuuuuupper uuids (where the units are mapped 
given a 'label'
within the same drive, so it always get the same name regardless it's
position, bus, its removed or moved to another machine. Something like
129436932769-12396128376128-12973651267 that i can remember ^^

nice to learn it solves this issue 8)
D

On Wed, Apr 27, 2016 at 09:20:42PM +0200, Fil wrote:
> Hi everyone,
> 
> my name's Fil and I just joined this list.
> I just wanted to tell you all, I have found a workaround for the problem
> described at
> https://libreboot.org/docs/gnulinux/encrypted_trisquel.html#troubleshooting
> 
> Last week I received from Francis (at last!) my libreboot-powered
> Minifree T400, and I installed Trisquel with full disk encryption.
> As stated in the page linked above, I had some issues while mounting the
> encrypted volume using cryptomount -a in GRUB.
> The problem was indeed the DVD drive. Removing it while booting worked
> around the problem, but removing it before every startup is a bit of a
> hassle, so...
> I had a little bit of think-about-it and.. just changing the cryptomount
> command in grub.cfg solved the issue!!!
> I changed "cryptomount -a" to "cryptomount -u <disk UUID>", flashed the
> modded ROM... et voila! Now the encrypted volume gets mounted correctly,
> even with the DVD drive in place.
> 
> I think the problem was that cryptomount -a tries to decrypt ALL
> volumes, so maybe it was searching for encrypted volumes on the DVD,
> thus timing out.
> 
> I already told Francis about this, but I thought to share this
> workaround with the community, hoping It can help someone!
> 
> Best wishes,
> 
> Fil
> 
>