Hello Florian,
thank you for your help. I managed to chroot into my system, and re-run
'guix system reconfigure' (very useful mailing list discussion on
chrooting, I also vote for including it in documentation :) ). In one
of the final steps, where guix tries to install the bootloader, I get
the error:
/gnu/store/.../grub/i386-pc/modinfo.sh doesn't exist. Please specify
--target or --directory.
Indeed my system uses grub-efi. Could that be related? Can you point
me to some specific instructions on how to check/solve efivar issues?
Not sure if I need grub-efi, or if it might also work using grub-pc.
Until now I've always used grub-efi.
(Another thing I noticed (maybe a side effect of chroot?): when I re-run
'guix system reconfigure' it tries to rebuild derivations that are
already there in the store from last time, I think.)
thank you!
Thomas
On 2021-10-01 08:53, pelzflorian (Florian Pelz) wrote:
On Thu, Sep 30, 2021 at 09:43:18AM +0200, Thomas Danckaert wrote:
Hello guix-help,
my system does not boot anymore after a guix pull and system
reconfigure
(which did show a warning, see below). It does not even enter the
GRUB
stage, I get a "Reboot and Select proper Boot device" instead. I
think the
MBR might not have been written correctly (just a hunch, I'm no
expert...).
If this system uses no old grub-bootloader but instead EFI
(grub-efi-bootloader), maybe writing the bootloader to the mainboard
failed (it is not only written to disk), perhaps because the mainboard
NVRAM is full and needs to be cleaned with efibootmgr/efivar/such
utilities.
During reconfigure, I did get a warning that my bootloader
configuration
used 'target', which is apparently deprecated in favor of 'targets'.
I
wasn't paying too much attention, and ignored the warning.... I don't
know
if that could be the cause of a missing or incorrect boot record? (In
that
case, I suggest this warning should be an ERROR ;-) )
No, the old target would fall back to targets. The warning is only a
warning that you should switch to (targets (list "…")).
I checked using a live USB, and it seems the whole system is still
there on
the hard drive. Is there a way to restore my system, keeping the
existing
/gnu/store? Or do I have to reinstall from scratch, remove the
existing
/gnu/store and rebuild everything (shouldn't be too much work using
Guix,
but way less elegant :) )
Thank you!
Thomas
I search on Duckduckgo for “site:lists.gnu.org guix chroot”, you
should read there how to chroot into your system so you can
reconfigure.
Regards,
Florian
