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