Boot Repair

From	"Martin McCormick" <martin.m@suddenlink.net>
Newsgroups	linux.debian.user
Subject	Boot Repair
Date	2021-06-02 20:00 +0200
Message-ID	<ClDjP-7tK-3@gated-at.bofh.it> (permalink)
Organization	linux.* mail to news gateway

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Is there any free utility that can run in Linux which helps one
rebuild a corrupted boot configuration?

	I have a disk which is currently out of it's usual place
as the boot drive for a debian system.  The past two times that
Buster updated grub, the drive became unbootable after  the
update.  The drive, itself appears to be perfectly good and I
think the problem which makes the update kill the drive is
related to a dd copy I made some years ago of one drive to
another so most of what is there is normal.

	After the second killing of the drive, I started to
determine what is misguiding update-initramfs as grub-install
seems to produce a grub.cfg file that is looking for all the
right UUID's but when the system boots, grub now fails by trying
to find a UUID that must have belonged to a now deceased system
as it no longer appears in the fstab of either the newly-dead
system or another system which is alive and well and being used
to try to revive the injured drive.

	Everything needed to produce a valid boot is there if
only I can run something that will reconstitude the boot image so
that it looks for the right UUID's.

	I do remember seeing this message as the update ripped
through the new grub:

update-initramfs: Generating /boot/initrd.img-4.19.0-5-686-pae
W: initramfs-tools configuration sets RESUME=UUID=6f6f4373-45a3-4c16-97b4-f62613
fe6d3b
W: but no matching swap device is available.

	That UUID should start with a 3, not a 6 as the blkid for
/swap is what should be there.

	I am not totally sure where tthe UUID that starts with
6f6f comes from but that's also the UUID one sees when grub
crashes and burns on liftoff when trying to boot from that drive.

Martin

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Thread

Boot Repair "Martin McCormick" <martin.m@suddenlink.net> - 2021-06-02 20:00 +0200
  Re: Boot Repair Weaver <weaver@riseup.net> - 2021-06-02 20:40 +0200
    Re: Boot Repair "Martin McCormick" <martin.m@suddenlink.net> - 2021-06-02 22:10 +0200
      Re: Boot Repair Weaver <weaver@riseup.net> - 2021-06-02 22:30 +0200
    Re: Boot Repair "Martin McCormick" <martin.m@suddenlink.net> - 2021-06-03 05:10 +0200
      Re: Boot Repair Weaver <weaver@riseup.net> - 2021-06-03 05:30 +0200
        Re: Boot Repair "Martin McCormick" <martin.m@suddenlink.net> - 2021-06-03 19:10 +0200
          Re: Boot Repair Dan Ritter <dsr@randomstring.org> - 2021-06-03 20:10 +0200
            Re: Boot Repair. Still Going Round and Round. "Martin McCormick" <martin.m@suddenlink.net> - 2021-06-04 19:50 +0200

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