scripts/live-premount/10driver_updates

   1 #!/bin/sh
   2
   3 PREREQ=""
   4 . /scripts/live-functions
   5 . /scripts/live-helpers
   6
   7 prereqs()
   8 {
   9        echo "$PREREQ"
  10 }
  11
  12 case $1 in
  13 # get pre-requisites
  14 prereqs)
  15        prereqs
  16        exit 0
  17        ;;
  18 esac
  19
  20 mountpoint=/cdrom
  21
  22 is_updates_path() {
  23         # Driver packages are stored in ubuntu-drivers/<kver>/
  24         # subdirectory. Each package contains a module for a specific
  25         # kernel flavour.
  26         path=$1
  27         kbase=$(uname -r | sed 's/^\([0-9]*\.[0-9]*\.[0-9]*\)-.*/\1/')
  28         update_dir="$path/ubuntu-drivers/$kbase"
  29         if [ -d "$update_dir" ]; then
  30                 if [ "$(echo $update_dir/*_$DPKG_ARCH.deb)" != \
  31                         "$update_dir/*_$DPKG_ARCH.deb" ]; then
  32                         echo "$update_dir"
  33                         return 0;
  34                 fi
  35         fi
  36         return 1;
  37 }
  38
  39 is_nice_device() {
  40     sysfs_path="${1#/sys}"
  41     if /lib/udev/path_id "${sysfs_path}" | grep -E -q "ID_PATH=(usb|pci-[^-]*-[ide|scsi|usb])"; then
  42         return 0
  43     fi
  44     return 1
  45 }
  46
  47 is_supported_fs () {
  48     # FIXME: do something better like the scan of supported filesystems
  49     fstype="${1}"
  50     case ${fstype} in
  51         vfat|iso9660|udf|ext2|ext3|ntfs)
  52             return 0
  53             ;;
  54     esac
  55     return 1
  56 }
  57
  58 check_dev_updates ()
  59 {
  60     sysdev="${1}"
  61     devname="${2}"
  62     if [ -z "${devname}" ]; then
  63         devname=$(sys2dev "${sysdev}")
  64     fi
  65
  66     fstype=$(get_fstype "${devname}")
  67     if is_supported_fs ${fstype}; then
  68         mount -t ${fstype} -o ro "${devname}" $mountpoint || continue
  69         if is_updates_path $mountpoint; then
  70             return 0
  71         else
  72             umount $mountpoint
  73         fi
  74     fi
  75
  76     return 1
  77 }
  78
  79 find_driver_updates() {
  80     for sysblock in $(echo /sys/block/* | tr ' ' '\n' | grep -v loop | grep -v ram); do
  81         devname=$(sys2dev "${sysblock}")
  82         fstype=$(get_fstype "${devname}")
  83         if /lib/udev/cdrom_id ${devname} > /dev/null; then
  84             if check_dev_updates "null" "${devname}" ; then
  85                 return 0
  86             fi
  87         elif is_nice_device "${sysblock}" ; then
  88             for dev in $(subdevices "${sysblock}"); do
  89                 if check_dev_updates "${dev}" ; then
  90                     return 0
  91                 fi
  92             done
  93         fi
  94     done
  95     return 1
  96 }
  97
  98 pulsate() {
  99     if [ -x /sbin/usplash_write ]; then
 100         /sbin/usplash_write "PULSATE"
 101     fi
 102 }
 103
 104
 105 updates="false"
 106
 107 for x in $(cat /proc/cmdline); do
 108         case $x in
 109                 debian-installer/driver-update=*)
 110                         updates=${x#debian-installer/driver-update=}
 111                         ;;
 112         esac
 113 done
 114
 115 if [ "$updates" != "true" ]; then
 116         log_end_msg
 117         exit 0
 118 fi
 119
 120 # Not sure what to do for network installs. I assume there isn't even a CD
 121 # for this anyway, so fail.
 122 if [ -n "${NETBOOT}" ]; then
 123         log_end_msg
 124         exit 0;
 125 fi
 126
 127 #if chroot /root [ -f /etc/gdm/gdm-cdd.conf ]; then
 128 #    GDMCONF=/etc/gdm/gdm-cdd.conf
 129 #else
 130 #    GDMCONF=/etc/gdm/gdm.conf
 131 #fi
 132
 133 eject
 134 log_wait_msg "Insert a driver CD and press ENTER ($DPKG_ARCH)"
 135
 136 log_begin_msg "Looking for driver update CD"
 137
 138 for i in 0 1 2 3 4 5 6 7 8 9 a b c d e f 10 11 12 13; do
 139         updates_root=$(find_driver_updates)
 140         if [ "${updates_root}" ]; then
 141                 break;
 142         fi
 143         sleep 1
 144 done
 145
 146 log_end_msg
 147
 148 if [ -z "${updates_root}" ]; then
 149         log_begin_msg "Could not find driver updates"
 150         log_wait_msg "Re-insert install CD and press ENTER"
 151         exit 0
 152 fi
 153
 154 log_begin_msg "Copying driver updates to temporary location"
 155
 156 mkdir -p /tmp/driver-updates
 157 cp $updates_root/*_$DPKG_ARCH.deb /tmp/driver-updates/
 158 umount $mountpoint
 159 eject
 160
 161 log_end_msg
 162
 163 log_wait_msg "Re-insert install CD and press ENTER."