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Re: SOLVED - Re: Deb10 installer can't install grub

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On Wed, Mar 03, 2021 at 10:28:34AM -0500, Marc Auslander wrote:
> One potential gotcha.  When you boot from an mdadm file system containing
> /boot/grub, grub will not write to the file system.  In particular, it will
> not update grub/grubenv even if you have a save_env line in grub.cfg.  So if
> you use grub-reboot to specify an alternate line in grub.cfg, you need to
> reset grubenv afterwards.  I do this in a root @reboot cron job.
> 
> If you don't know what I'm talking about, you probably don't need to worry
> about this.

I don't *know* know what you're talking about, but I think I get the
gist of it.  I'm not doing anything fancy enough to have to deal with
the details of grubenv and grub-reboot, but your initial comment about
grub refusing to write to a mdadm filesystem is consistent with what I
was seeing, and it's nice to have confirmation that it actually does
work that way.

-- 
Dave Sherohman

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Deb10 installer can't install grub Dave Sherohman <dave@sherohman.org> - 2021-03-02 13:30 +0100
  Re: Deb10 installer can't install grub Dan Ritter <dsr@randomstring.org> - 2021-03-02 14:00 +0100
    Re: Deb10 installer can't install grub The Wanderer <wanderer@fastmail.fm> - 2021-03-02 14:30 +0100
      Re: Deb10 installer can't install grub Dan Ritter <dsr@randomstring.org> - 2021-03-02 16:00 +0100
        Re: Deb10 installer can't install grub The Wanderer <wanderer@fastmail.fm> - 2021-03-02 16:00 +0100
        Re: Deb10 installer can't install grub Charles Curley <charlescurley@charlescurley.com> - 2021-03-02 17:20 +0100
    Re: Deb10 installer can't install grub Dave Sherohman <dave@sherohman.org> - 2021-03-02 15:10 +0100
      Re: Deb10 installer can't install grub The Wanderer <wanderer@fastmail.fm> - 2021-03-02 15:20 +0100
        Re: Deb10 installer can't install grub The Wanderer <wanderer@fastmail.fm> - 2021-03-02 15:30 +0100
          Re: Deb10 installer can't install grub Dave Sherohman <dave@sherohman.org> - 2021-03-02 15:40 +0100
        Re: Deb10 installer can't install grub Dave Sherohman <dave@sherohman.org> - 2021-03-02 15:30 +0100
    Re: Deb10 installer can't install grub Felix Miata <mrmazda@earthlink.net> - 2021-03-02 20:10 +0100
      Re: Deb10 installer can't install grub Andrei POPESCU <andreimpopescu@gmail.com> - 2021-03-03 17:00 +0100
        Re: Deb10 installer can't install grub Felix Miata <mrmazda@earthlink.net> - 2021-03-03 23:20 +0100
          Re: Deb10 installer can't install grub Dan Ritter <dsr@randomstring.org> - 2021-03-03 23:50 +0100
            Re: Deb10 installer can't install grub <tomas@tuxteam.de> - 2021-03-04 10:10 +0100
              Re: Deb10 installer can't install grub Greg Wooledge <greg@wooledge.org> - 2021-03-04 14:20 +0100
                Re: Deb10 installer can't install grub <tomas@tuxteam.de> - 2021-03-04 14:30 +0100
                Re: Deb10 installer can't install grub Anssi Saari <as@sci.fi> - 2021-03-05 10:30 +0100
                Re: Deb10 installer can't install grub Darac Marjal <mailinglist@darac.org.uk> - 2021-03-05 11:10 +0100
                Re: Deb10 installer can't install grub Andy Smith <andy@strugglers.net> - 2021-03-05 13:00 +0100
          Re: Deb10 installer can't install grub <tomas@tuxteam.de> - 2021-03-04 10:10 +0100
          Re: Deb10 installer can't install grub Andrei POPESCU <andreimpopescu@gmail.com> - 2021-03-05 14:50 +0100
  Re: Deb10 installer can't install grub "Andrew M.A. Cater" <amacater@einval.com> - 2021-03-02 22:00 +0100
  Re: Deb10 installer can't install grub Dave Sherohman <dave@sherohman.org> - 2021-03-03 10:00 +0100
    SOLVED - Re: Deb10 installer can't install grub Dave Sherohman <dave@sherohman.org> - 2021-03-03 12:30 +0100
      Re: SOLVED - Re: Deb10 installer can't install grub Marc Auslander <marcausl@gmail.com> - 2021-03-03 16:50 +0100
        Re: SOLVED - Re: Deb10 installer can't install grub Dave Sherohman <dave@sherohman.org> - 2021-03-07 14:10 +0100
          Re: SOLVED - Re: Deb10 installer can't install grub Nicholas Geovanis <nickgeovanis@gmail.com> - 2021-03-07 15:10 +0100
    Re: Deb10 installer can't install grub Anssi Saari <as@sci.fi> - 2021-03-04 10:10 +0100

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