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=$(($?>$error?$?:$error))' ERR # save maximum error code
   5
   6 # do only execute for Debian and similar distros
   7 if ! ifclass DEBIAN ; then
   8     exit 0
   9 fi
  10
  11 set -a
  12
  13 # do not set up grub during dirinstall
  14 if [ "$FAI_ACTION" = "dirinstall" ] ; then
  15     exit 0
  16 fi
  17 # during softupdate use this file
  18 [ -r $LOGDIR/disk_var.sh ] && . $LOGDIR/disk_var.sh
  19
  20 if [ -z "$BOOT_DEVICE" ]; then
  21     exit 189
  22 fi
  23
  24 # disable os-prober because of #802717
  25 ainsl /etc/default/grub 'GRUB_DISABLE_OS_PROBER=true'
  26
  27 # efivars may still be mounted from the host system during fai-diskimage
  28 if [ -d $target/sys/firmware/efi/efivars ]; then
  29     umount $target/sys/firmware/efi/efivars
  30 fi
  31
  32 # skip the rest, if not an initial installation
  33 if [ $FAI_ACTION != "install" ]; then
  34     $ROOTCMD update-grub
  35     exit $error
  36 fi
  37
  38 get_stable_devname() {
  39
  40     local _DEV="$1"
  41     local i
  42     declare -a _RES
  43
  44     # prefer SCSI over ATA over WWN over path
  45     # do not use by-path
  46
  47     for i in $($ROOTCMD udevadm info -r --query=symlink "$_DEV"); do
  48         if [[ "$i" =~ /by-id/scsi ]]; then
  49             _RES[10]="$i"
  50         elif [[ "$i" =~ /by-id/ata ]]; then
  51             _RES[20]="$i"
  52         elif [[ "$i" =~ /by-id/wwn ]]; then
  53             _RES[99]="$i"
  54         fi
  55     done
  56
  57     echo "${_RES[@]::1}"
  58 }
  59
  60 # handle /boot in lvm-on-md
  61 _bdev=$(readlink -f $BOOT_DEVICE)
  62 if [ "${_bdev%%-*}" = "/dev/dm" ]; then
  63   BOOT_DEVICE=$( lvs --noheadings -o devices $BOOT_DEVICE | sed -e 's/^*\([^(]*\)(.*$/\1/' )
  64 fi
  65
  66 # Check if RAID is used for the boot device
  67 if [[ $BOOT_DEVICE =~ '/dev/md' ]]; then
  68     raiddev=${BOOT_DEVICE#/dev/}
  69     # install grub on all members of RAID
  70     for device in $(LC_ALL=C perl -ne 'if(/^'$raiddev'\s.+raid\d+\s(.+)/){ $_=$1; s/\d+\[\d+\]//g; s/(nvme.+?)p/$1/g; print }' /proc/mdstat); do
  71         pdevice=$(get_stable_devname /dev/$device)
  72         if [ -z "$pdevice" ]; then
  73             # if we cannot find a persistent name (for e.g. in a VM) use old name
  74             pdevice="/dev/$device"
  75         fi
  76         mbrdevices+="$pdevice, "
  77         echo Installing grub on /dev/$device = $pdevice
  78         $ROOTCMD grub-install --no-floppy "/dev/$device"
  79     done
  80     # remove last ,
  81     mbrdevices=${mbrdevices%, }
  82 else
  83     mbrdevices=$(get_stable_devname $BOOT_DEVICE)
  84     if [ -z "$mbrdevices" ]; then
  85         # if we cannot find a persistent name (for e.g. in a VM) use old name
  86         mbrdevices=$BOOT_DEVICE
  87     fi
  88     echo "Installing grub on $BOOT_DEVICE = $mbrdevices"
  89     $ROOTCMD grub-install --no-floppy "$mbrdevices"
  90 fi
  91
  92 echo "grub-pc grub-pc/install_devices multiselect $mbrdevices" | $ROOTCMD debconf-set-selections
  93 $ROOTCMD dpkg-reconfigure grub-pc
  94 exit $error