Changing display manager can render system unbootable

DoneSubmitted by Marius Bakke.
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4 participants
  • Andreas Enge
  • Ludovic Courtès
  • Marius Bakke
  • ng0
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Marius Bakke wrote on 17 Jul 2017 12:09
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(address . bug-guix@gnu.org)
874lub74st.fsf@fastmail.com
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Hello!
When changing display manager in the system configuration and invoking`guix system reconfigure`, the existing desktop environment will bekilled. If you invoked the command from within said desktop environment,the reconfigure command will be forcefully terminated.
If you're unlucky, this might happen during `grub-install`. Afterlogging in on a console and rebooting, this is what I got:
Toggle snippet (10 lines)Welcome to GRUB!
Attempting to decrypt master key...Enter passphrase for hd1,gpt2 (<uuid>):Slot 0 openederror: file `/boot/grub/x86_64-efi/normal.mod' not found.Entering rescue mode...grub rescue>
It can be recovered by booting by copying /boot/grub/x86_64-efi/* from ahealthy system to the partially installed one.
I'm not sure how to mitigate this, since the DE restart is arguably afeature. A command analogous to `nixos-rebuild boot` might be of aid forthose of us aware of this problem.
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ng0 wrote on 17 Jul 2017 13:47
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(name . Marius Bakke)(address . mbakke@fastmail.com)(address . 27732@debbugs.gnu.org)
20170717114749.em7n4v3llamy4vam@abyayala
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Marius Bakke transcribed 1.6K bytes:
Toggle quote (28 lines)> Hello!> > When changing display manager in the system configuration and invoking> `guix system reconfigure`, the existing desktop environment will be> killed. If you invoked the command from within said desktop environment,> the reconfigure command will be forcefully terminated.> > If you're unlucky, this might happen during `grub-install`. After> logging in on a console and rebooting, this is what I got:> > --8<---------------cut here---------------start------------->8---> Welcome to GRUB!> > Attempting to decrypt master key...> Enter passphrase for hd1,gpt2 (<uuid>):> Slot 0 opened> error: file `/boot/grub/x86_64-efi/normal.mod' not found.> Entering rescue mode...> grub rescue>> --8<---------------cut here---------------end--------------->8---> > It can be recovered by booting by copying /boot/grub/x86_64-efi/* from a> healthy system to the partially installed one.> > I'm not sure how to mitigate this, since the DE restart is arguably a> feature. A command analogous to `nixos-rebuild boot` might be of aid for> those of us aware of this problem.
This is weird. I was aware of this and simply waited a reasonable longtime until I forced a reboot from such a system. I've done thiscountless times in the past and it always worked.
But the situation is unfortunate and a fix would be good.
-- ng0GnuPG: A88C8ADD129828D7EAC02E52E22F9BBFEE348588GnuPG: https://n0is.noblogs.org/my-keyshttps://www.infotropique.orghttps://krosos.org
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Ludovic Courtès wrote on 18 Jul 2017 15:50
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(name . Marius Bakke)(address . mbakke@fastmail.com)(address . 27732@debbugs.gnu.org)
87a841yhv4.fsf@gnu.org
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Hello,
Marius Bakke <mbakke@fastmail.com> skribis:
Toggle quote (5 lines)> When changing display manager in the system configuration and invoking> `guix system reconfigure`, the existing desktop environment will be> killed. If you invoked the command from within said desktop environment,> the reconfigure command will be forcefully terminated.
Why is the desktop environment killed?
From Guix’s viewpoint, the ‘xorg-server’ Shepherd service cannot berestarted if it’s still running (and indeed, when I run ‘guix systemreconfigure’ from my X11 + Ratpoison setup, Xorg is not killed,fortunately.) Same for ‘dbus-system’ etc.
I don’t know what else could be killing GNOME et al.
Thanks,Ludo’.
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Ludovic Courtès wrote on 18 Jul 2017 15:50
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control message for bug #27732
(address . control@debbugs.gnu.org)
878tjlyhus.fsf@gnu.org
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severity 27732 serious
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Ludovic Courtès wrote on 27 Jul 2017 12:10
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(address . control@debbugs.gnu.org)
87pocm5gxu.fsf@gnu.org
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tags 27732 moreinfo
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Andreas Enge wrote on 31 Jan 2019 15:54
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(address . control@debbugs.gnu.org)
20190131145403.GA25735@jurong
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tags 27732 unreproducibleclose 27732thanks
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