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=$(($?>$error?$?:$error))' ERR # save maximum error code
   5
   6 set -x
   7 # do only execute for Debian and similar distros
   8 if ! ifclass DEBIAN ; then
   9     exit 0
  10 fi
  11
  12 set -a
  13
  14 # do not set up grub during dirinstall
  15 if [ "$FAI_ACTION" = "dirinstall" ] ; then
  16     exit 0
  17 fi
  18 # during softupdate use this file
  19 [ -r $LOGDIR/disk_var.sh ] && . $LOGDIR/disk_var.sh
  20
  21 if [ -z "$BOOT_DEVICE" ]; then
  22     exit 189
  23 fi
  24
  25 # disable os-prober because of #802717
  26 ainsl /etc/default/grub 'GRUB_DISABLE_OS_PROBER=true'
  27
  28 # efivars may still be mounted from the host system during fai-diskimage
  29 if [ -d $target/sys/firmware/efi/efivars ]; then
  30     umount $target/sys/firmware/efi/efivars
  31 fi
  32
  33 # skip the rest, if not an initial installation
  34 if [ $FAI_ACTION != "install" ]; then
  35     $ROOTCMD update-grub
  36     exit $error
  37 fi
  38
  39 get_stable_devname() {
  40
  41     local _DEV="$1"
  42     local i
  43     declare -a _RES
  44
  45     # prefer SCSI over ATA over WWN over path
  46     # do not use by-path
  47
  48     for i in $($ROOTCMD udevadm info -r --query=symlink "$_DEV"); do
  49         if [[ "$i" =~ /by-id/scsi ]]; then
  50             _RES[10]="$i"
  51         elif [[ "$i" =~ /by-id/ata ]]; then
  52             _RES[20]="$i"
  53         elif [[ "$i" =~ /by-id/wwn ]]; then
  54             _RES[99]="$i"
  55         fi
  56     done
  57
  58     echo "${_RES[@]::1}"
  59 }
  60
  61 # handle /boot in lvm-on-md
  62 _bdev=$(readlink -f $BOOT_DEVICE)
  63 if [ "${_bdev%%-*}" = "/dev/dm" ]; then
  64   BOOT_DEVICE=$( lvs --noheadings -o devices $BOOT_DEVICE | sed -e 's/^*\([^(]*\)(.*$/\1/' )
  65 fi
  66
  67 # Check if RAID is used for the boot device
  68 if [[ $BOOT_DEVICE =~ '/dev/md' ]]; then
  69     GROOT=$($ROOTCMD grub-probe -tdrive -d $BOOT_DEVICE)
  70     raiddev=${BOOT_DEVICE#/dev/}
  71     # install grub on all members of RAID
  72     for device in $(LC_ALL=C perl -ne 'if(/^'$raiddev'\s.+raid\d+\s(.+)/){ $_=$1; s/\d+\[\d+\]//g; s/(nvme.+?)p/$1/g; print }' /proc/mdstat); do
  73         pdevice=$(get_stable_devname /dev/$device)
  74         if [ -z "$pdevice" ]; then
  75             # if we cannot find a persistent name (for e.g. in a VM) use old name
  76             pdevice="/dev/$device"
  77         fi
  78         mbrdevices+="$pdevice, "
  79         echo Installing grub on /dev/$device = $pdevice
  80         $ROOTCMD grub-install --no-floppy "/dev/$device"
  81     done
  82     # remove last ,
  83     mbrdevices=${mbrdevices%, }
  84 else
  85   for dev in $BOOT_DEVICE; do
  86     mbrdev=$(get_stable_devname $dev)
  87     if [ -z "$mbrdevices" ]; then
  88       # if we cannot find a persistent name (for e.g. in a VM) use old name
  89       mbrdevices+="$dev, "
  90     fi
  91     echo "Installing grub on $dev = $mbrdev"
  92     $ROOTCMD grub-install --no-floppy "$mbrdev"
  93   done
  94   # remove trailing ,
  95   mbrdevices=${mbrdevices%, }
  96 fi
  97
  98 echo "grub-pc grub-pc/install_devices multiselect $mbrdevices" | $ROOTCMD debconf-set-selections
  99 $ROOTCMD dpkg-reconfigure grub-pc
 100 exit $error