Merge remote-tracking branch 'origin/pr/140'

diff --combined chroot-script
index 58bdb0e,b47e31e..a5f92c4
--- 1/chroot-script
--- 2/chroot-script
+++ b/chroot-script
@@@ -470,8 -470,18 +470,18 @@@ timezone() 
  # helper function for fstab() {{{
  createfstab(){
    echo "Setting up /etc/fstab"
+   cat > /etc/fstab <<EOF
+ # /etc/fstab - created by grml-debootstrap on $(date)
+ # Accessible filesystems, by reference, are maintained under '/dev/disk/'.
+ # See man pages fstab(5), findfs(8), mount(8) and/or blkid(8) for more info.
+ #
+ # After editing this file, run 'systemctl daemon-reload' to update systemd
+ # units generated from this file.
+ #
+ EOF
+ 
    if [ -n "$TARGET_UUID" ] ; then
-     echo "/dev/disk/by-uuid/${TARGET_UUID} /  auto    defaults,errors=remount-ro 0   1" > /etc/fstab
+     echo "/dev/disk/by-uuid/${TARGET_UUID} /  auto    defaults,errors=remount-ro 0   1" >> /etc/fstab
    else
      echo "Warning: couldn't identify target UUID for rootfs, your /etc/fstab might be incomplete."
    fi
@@@ -616,31 -626,19 +626,31 @@@ grub_install() 
       for device in $SELECTED_PARTITIONS ; do
          GRUB="${device%%[0-9]}"
          echo "Installing grub on ${GRUB}:"
 -        grub-install --no-floppy "$GRUB"
 +        if ! grub-install --no-floppy "$GRUB" ; then
 +          echo "Error: failed to execute 'grub-install --no-floppy $GRUB'." >&2
 +          exit 1
 +        fi
 +
       done
       rm -f /boot/grub/device.map
    else
       echo "Installing grub on ${GRUB}:"
       case "$RELEASE" in
         lenny|squeeze|wheezy)
 -         grub-install --no-floppy "$(readlink -f "${GRUB}")"
 +         local grub_dev
 +         grub_dev="$(readlink -f "${GRUB}")"
 +         if ! grub-install --no-floppy "${grub_dev}" ; then
 +           echo "Error: failed to execute 'grub-install --no-floppy ${grub_dev}'." >&2
 +           exit 1
 +         fi
           rm -f /boot/grub/device.map
           ;;
         *)
           echo "(hd0) ${GRUB}" > /boot/grub/device.map
 -         grub-install "(hd0)"
 +         if ! grub-install "(hd0)" ; then
 +           echo "Error: failed to execute 'grub-install (hd0)'." >&2
 +           exit 1
 +         fi
           rm /boot/grub/device.map
           ;;
       esac
@@@ -658,11 -656,6 +668,11 @@@
      return 1
    fi
  
 +  if [ -n "${BOOT_APPEND}" ] ; then
 +    echo "Adding BOOT_APPEND configuration ['${BOOT_APPEND}'] to /etc/default/grub."
 +    sed -i "/GRUB_CMDLINE_LINUX_DEFAULT/ s#\"\$# ${BOOT_APPEND}\"#" /etc/default/grub
 +  fi
 +
    mountpoint /boot/efi &>/dev/null && umount /boot/efi
  
    $UPDATEGRUB