iankelling.org Git - automated-distro-installer/blob - fai/config/scripts/GRUB_PC/10-setup

   1 #! /bin/bash
   2 # support for GRUB version 2
   3
   4 error=0; trap 'error=$(($?>$error?$?:$error))' ERR # save maximum error code
   5
   6 set -a
   7
   8 # do not set up grub during dirinstall
   9 if [ "$FAI_ACTION" = "dirinstall" ] ; then
  10     exit 0
  11 fi
  12 # during softupdate use this file
  13 [ -r $LOGDIR/disk_var.sh ] && . $LOGDIR/disk_var.sh
  14
  15 if [ -z "$BOOT_DEVICE" ]; then
  16     exit 189
  17 fi
  18
  19 # disable os-prober because of #802717
  20 ainsl /etc/default/grub 'GRUB_DISABLE_OS_PROBER=true'
  21
  22 # skip the rest, if not an initial installation
  23 if [ $FAI_ACTION != "install" ]; then
  24     $ROOTCMD update-grub
  25     exit $error
  26 fi
  27
  28 get_stable_devname() {
  29
  30     local _DEV="$1"
  31     local i
  32     declare -a _RES
  33
  34     # prefer SCSI over ATA over WWN over path
  35     # do not use by-path
  36
  37     for i in $($ROOTCMD udevadm info -r --query=symlink "$_DEV"); do
  38         if [[ "$i" =~ /by-id/scsi ]]; then
  39             _RES[10]="$i"
  40         elif [[ "$i" =~ /by-id/ata ]]; then
  41             _RES[20]="$i"
  42         elif [[ "$i" =~ /by-id/wwn ]]; then
  43             _RES[99]="$i"
  44         fi
  45     done
  46
  47     echo "${_RES[@]::1}"
  48 }
  49
  50 # handle /boot in lvm-on-md
  51 _bdev=$(readlink -f $BOOT_DEVICE)
  52 if [ "${_bdev%%-*}" = "/dev/dm" ]; then
  53   BOOT_DEVICE=$( lvs --noheadings -o devices $BOOT_DEVICE | sed -e 's/^*\([^(]*\)(.*$/\1/' )
  54 fi
  55
  56 # Check if RAID is used for the boot device
  57 if [[ $BOOT_DEVICE =~ '/dev/md' ]]; then
  58     raiddev=${BOOT_DEVICE#/dev/}
  59     # install grub on all members of RAID
  60     for device in $(LC_ALL=C perl -ne 'if(/^'$raiddev'\s.+raid\d+\s(.+)/){ $_=$1; s/\d+\[\d+\]//g; s/(nvme.+?)p/$1/g; print }' /proc/mdstat); do
  61         pdevice=$(get_stable_devname /dev/$device)
  62         if [ -z "$pdevice" ]; then
  63             # if we cannot find a persistent name (for e.g. in a VM) use old name
  64             pdevice="/dev/$device"
  65         fi
  66         mbrdevices+="$pdevice, "
  67         echo Installing grub on /dev/$device = $pdevice
  68         $ROOTCMD grub-install --no-floppy "/dev/$device"
  69     done
  70     # remove last ,
  71     mbrdevices=${mbrdevices%, }
  72 else
  73     mbrdevices=$(get_stable_devname $BOOT_DEVICE)
  74     if [ -z "$mbrdevices" ]; then
  75         # if we cannot find a persistent name (for e.g. in a VM) use old name
  76         mbrdevices=$BOOT_DEVICE
  77     fi
  78     echo "Installing grub on $BOOT_DEVICE = $mbrdevices"
  79     $ROOTCMD grub-install --no-floppy "$mbrdevices"
  80 fi
  81
  82 echo "grub-pc grub-pc/install_devices multiselect $mbrdevices" | $ROOTCMD debconf-set-selections
  83 $ROOTCMD dpkg-reconfigure grub-pc
  84 exit $error