Re: Some troubles with grub with buster point release 10.8

Carsten Aulbert <[email protected]> Mon, 8 Feb 2021 11:31:18 +0100

Newsgroups	gmane.linux.debian.fai
Message-ID	<[email protected]>

On 08.02.21 11:21, Thomas Lange wrote:
> I also have some machines that are stuck because of this. I wonder why
> not all machines are affected.
> 

so far - as almost all our machine use gpt or gpt-bios disk labels, we 
use the attach script to fix the issue (obviously not 100% fail-save) 
but should be close enough (for us).

Please use at your own risk :)

Cheers

Carsten

grub_debconf.sh (application/x-shellscript, 924 B)

#!/bin/bash

join() {
  local _sep="$1"
  shift
  local _f="$1"
  shift
  printf "%s" "$_f" "${@/#/$_sep}"
}

declare -a GRUB_LIST

# do not act, if debconf value is already set
if debconf-show grub-pc| grep -q '* grub-pc/install_devices:'
then
    echo "grub-pc/install_devices already set, not acting"
    exit 1
fi

# loop over all ATA devices
# hopefully, this will capture all of the vital disks
for i in $(ls /dev/disk/by-id/ata*|grep -v part)
do
    if parted "$i" print | grep -q bios_grub
    then
        GRUB_LIST+=("$i")
    fi
done

# bail out if nothing was found
if (( "${#GRUB_LIST[@]}" < 1 ))
then
    echo "No disks with bios_grub partition found"
    exit 1
fi


# set grup-pc debconf and try fixing the package upgrade
echo "grub-pc grub-pc/install_devices multiselect $(join ', ' "${GRUB_LIST[@]}")" | debconf-set-selections

for d in "${GRUB_LIST[@]}"
do
    ls -l "$d"
done

apt-get -f install
exit 0

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