Re: system hangs at boot - LUKS /home/ problem(?)

[Adrien 'neox' Bourmault]

Le mardi 26 mars 2024 à 18:58 +0100, Fulbert a écrit :
> I forgot to mention : LUKS version 2 with PBKDF: argon2i. I remember reading
> that guix supported LUKS2 except for /boot… but I might be wrong. At 
> least it
> has worked for month on my computer until guix d5f857a (22 mar 2024).
> 
> So, new question, do I have to convert to LUKS1 ?
> 
> Le 26.03.24 à 16:15, Fulbert a écrit :
> 
> > Hello! Seeking some help/suggestions to solve a problem preventing
> > my system to boot up, which was working properly up to guix 9b84b36
> > (21 mar 2024) (note: I confess that my system is not totally pure).
> > 
> > Starting with guix d5f857a (22 mar 2024) up to my latest guix pull
> > with 1415ea7, the **system hangs during boot**, and it does before
> > anything is written to /var/log/messages. So, using a video capture
> > of the screen at boot, I was abble to catch :
> > 
> > #+begin_src boot
> > shepherd[1]: Exception caught while while starting 
> > device-mapping-luks-homes:
> > (unbound-variable #f "Unbound variable: "S" (bytevector?) #f)
> > #+end_src
> > 
> > … which appears to be the culprit ?!
> > 
> > follows a long list of "shepherd[1]: Service XXX depends on YYY" and
> > then
> > #+begin_src boot
> > shepherd[1]: The following services could not be started in the background:
> > <follows the list of all services the system should start>
> > #+end_src
> > 
> >  From there : a blinking cursor and the only way out I found is
> > CTRL-ALT-DEL, which triggers shepherd to stop some services. After
> > that I have to shutdown using hardware button.
> > 
> > My system and its config.scm have not changed and I see nothing
> > relevant, related to LUKS/dm-crypt, in `guix pull -l`.
> > 
> > My LUKS is configured like so :
> > 
> >    (mapped-devices
> >      (list
> >        (mapped-device
> >          (source (uuid "<the uuid>"))
> >          (target "luks-homes")
> >          (type luks-device-mapping))))
> > 
> >    (file-systems
> >      (append
> >        (list
> >          […]
> >          (file-system (mount-point "/home")
> >                       (device (file-system-label "luks-homes"))
> >                       (type "ext4")
> >                       (dependencies mapped-devices))
> >          […]
> > 
> > Any help would be appreciated.
> > 
> 

Hi everyone, the exact same thing happens to me too since d5f857a.

I'm using a pure GNU Guix installation with my /home as a LUKS partition.

My fs configuration : 

  (file-systems (cons* 
    (file-system
      (mount-point "/home")
      (device "/dev/mapper/crypthome")
      (type "ext4")
      (dependencies mapped-devices))
    (file-system
      (mount-point "/boot/efi")
      (device (uuid "A012-A17A" 'fat32))
      (type "vfat"))
    (file-system
      (mount-point "/")
      (device (uuid "dfaec018-b99b-4d34-a206-eec25b833c45" 'ext4))
      (type "ext4")) %base-file-systems)))

Happy hacking!
-- 
Adrien Bourmault
Maintainer, GNU Boot project
Associate member, Free Software Foundation
GPG : 393D4CC68136F39799DA75F295F65F55F682A17A

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