debian/local/syslinux-installer

   1 #!/bin/sh -e
   2
   3 . /usr/share/debconf/confmodule
   4
   5 if [ "$1" ]; then
   6         ROOT=$1
   7         chroot=chroot
   8 else
   9         ROOT=
  10         chroot=
  11 fi
  12
  13 newline="
  14 "
  15
  16 db_capb backup
  17
  18 log() {
  19         logger -t syslinux-installer "$@"
  20 }
  21
  22 error() {
  23         log "error: $@"
  24 }
  25
  26 info() {
  27         log "info: $@"
  28 }
  29
  30 findfs () {
  31         mount | grep "on $ROOT${1%/} " | tail -n1 | cut -d' ' -f1
  32 }
  33
  34 EXTLINUX="extlinux"
  35
  36 ARCH="$(archdetect)"
  37 info "architecture: $ARCH"
  38
  39 rootfs=$(findfs /)
  40 bootfs=$(findfs /boot)
  41 [ -n "$bootfs" ] || bootfs="$rootfs"
  42
  43 db_input critical syslinux-installer/bootdev || true
  44 if ! db_go; then
  45         if [ "$q" ]; then
  46                 state=1
  47         else
  48                 # back up to menu
  49                 db_progress STOP
  50                 exit 10
  51         fi
  52 else
  53         db_get syslinux-installer/bootdev
  54         bootdev=$RET
  55 fi
  56
  57 exit_code=0
  58 apt-install $EXTLINUX || exit_code=$?
  59
  60 if [ $exit_code -ne 0 ] ; then
  61         db_progress STOP
  62         info "Calling 'apt-install $EXTLINUX' failed"
  63         db_subst syslinux-installer/apt-install-failed EXTLINUX "$EXTLINUX"
  64         db_input critical syslinux-installer/apt-install-failed || true
  65         if ! db_go; then
  66                 exit 10 # back up to menu
  67         fi
  68         exit 1
  69 fi
  70
  71 info "Installing extlinux on '$bootdev'"
  72
  73 info "Running in-target extlinux-install \"$bootdev\""
  74 if log-output -t syslinux-installer in-target extlinux-install "$bootdev"; then
  75         info "extlinux-install ran successfully"
  76 else
  77         error "Running 'extlinux-install \"$bootdev\"' failed."
  78         db_subst syslinux-installer/extlinux-install-failed BOOTDEV "$bootdev"
  79         db_input critical syslinux-installer/extlinux-install-failed || [ $? -eq 30 ]
  80         db_go || true
  81         exit 1
  82 fi
  83
  84 info "Running in-target extlinux-update"
  85 if log-output -t syslinux-installer in-target extlinux-update; then
  86         info "extlinux-update ran successfully"
  87         db_go || true
  88         exit 0
  89 else
  90         error "Running 'in-target extlinux-update' failed."
  91         db_input critical syslinux-installer/extlinux-update-failed || [ $? -eq 30 ]
  92         db_go || true
  93         exit 1
  94 fi