scripts/live-premount/10driver_updates

   1 #!/bin/sh
   2
   3 #set -e
   4
   5 # initramfs-tools header
   6
   7 PREREQ=""
   8
   9 prereqs()
  10 {
  11         echo "${PREREQ}"
  12 }
  13
  14 case "${1}" in
  15         prereqs)
  16                 prereqs
  17                 exit 0
  18                 ;;
  19 esac
  20
  21 # live-initramfs header
  22
  23 if [ -n "${NOUSER}" ]
  24 then
  25         exit 0
  26 fi
  27
  28 . /scripts/live-functions
  29 . /scripts/live-helpers
  30
  31 log_begin_msg "Adding live session user..."
  32
  33 # live-initramfs script
  34
  35 mountpoint=/cdrom
  36
  37 is_updates_path ()
  38 {
  39         # Driver packages are stored in ubuntu-drivers/<kver>/
  40         # subdirectory. Each package contains a module for a specific
  41         # kernel flavour.
  42
  43         path=${1}
  44         abi="$(uname -r)"
  45         kver="$(echo "$abi" | cut -d- -f1,2)"
  46         kbase="$(echo "$abi" | cut -d- -f1)"
  47
  48         for leaf in "$abi" "$kver" "$kbase"
  49         do
  50                 update_dir="$path/ubuntu-drivers/$leaf"
  51
  52                 [ -d "$update_dir" ] || continue
  53
  54                 if [ "$(echo ${update_dir}/*_${DPKG_ARCH}.deb)" != \
  55                         "${update_dir}/*_${DPKG_ARCH}.deb" ]
  56                 then
  57                         echo "${update_dir}"
  58                         return 0
  59                 fi
  60         done
  61
  62         return 1
  63 }
  64
  65 is_nice_device ()
  66 {
  67         sysfs_path="${1#/sys}"
  68
  69         if /lib/udev/path_id "${sysfs_path}" | grep -E -q "ID_PATH=(usb|pci-[^-]*-(ide|scsi|usb))"
  70         then
  71                 return 0
  72         fi
  73
  74         return 1
  75 }
  76
  77 is_supported_fs ()
  78 {
  79         # FIXME: do something better like the scan of supported filesystems
  80         fstype="${1}"
  81
  82         case ${fstype} in
  83                 vfat|iso9660|udf|ext2|ext3|ntfs)
  84                         return 0
  85                         ;;
  86         esac
  87
  88         return 1
  89 }
  90
  91 check_dev_updates ()
  92 {
  93         sysdev="${1}"
  94         devname="${2}"
  95
  96         if [ -z "${devname}" ]
  97         then
  98                 devname=$(sys2dev "${sysdev}")
  99         fi
 100
 101         fstype=$(get_fstype "${devname}")
 102
 103         if is_supported_fs ${fstype}
 104         then
 105                 mount -t ${fstype} -o ro "${devname}" $mountpoint || continue
 106
 107                 if is_updates_path ${mountpoint}
 108                 then
 109                         return 0
 110                 else
 111                         umount ${mountpoint}
 112                 fi
 113         fi
 114
 115         return 1
 116 }
 117
 118 find_driver_updates ()
 119 {
 120         for sysblock in $(echo /sys/block/* | tr ' ' '\n' | grep -v loop | grep -v ram)
 121         do
 122                 devname=$(sys2dev "${sysblock}")
 123                 fstype=$(get_fstype "${devname}")
 124
 125                 if /lib/udev/cdrom_id ${devname} > /dev/null
 126                 then
 127                         if check_dev_updates "null" "${devname}"
 128                         then
 129                                 return 0
 130                         fi
 131                 elif is_nice_device "${sysblock}"
 132                 then
 133                         for dev in $(subdevices "${sysblock}")
 134                         do
 135                                 if check_dev_updates "${dev}"
 136                                 then
 137                                         return 0
 138                                 fi
 139                         done
 140                 fi
 141         done
 142
 143         return 1
 144 }
 145
 146 pulsate ()
 147 {
 148         if [ -x /sbin/usplash_write ]
 149         then
 150                 /sbin/usplash_write "PULSATE"
 151         fi
 152 }
 153
 154 updates="false"
 155
 156 for x in $(cat /proc/cmdline)
 157 do
 158         case ${x} in
 159                 debian-installer/driver-update=*)
 160                         updates=${x#debian-installer/driver-update=}
 161                         ;;
 162         esac
 163 done
 164
 165 if [ "${updates}" != "true" ]
 166 then
 167         log_end_msg
 168         exit 0
 169 fi
 170
 171 # Not sure what to do for network installs. I assume there isn't even a CD
 172 # for this anyway, so fail.
 173 if [ -n "${NETBOOT}" ]
 174 then
 175         log_end_msg
 176         exit 0;
 177 fi
 178
 179 #if chroot /root [ -f /etc/gdm/gdm-cdd.conf ]
 180 #then
 181 #       GDMCONF=/etc/gdm/gdm-cdd.conf
 182 #else
 183 #       GDMCONF=/etc/gdm/gdm.conf
 184 #fi
 185
 186 if [ -x /usr/bin/eject ]
 187 then
 188         eject
 189 fi
 190
 191 log_wait_msg "Insert a driver CD and press ENTER (${DPKG_ARCH})"
 192
 193 log_begin_msg "Looking for driver update CD"
 194
 195 for i in 0 1 2 3 4 5 6 7 8 9 a b c d e f 10 11 12 13
 196 do
 197         updates_root=$(find_driver_updates)
 198
 199         if [ "${updates_root}" ]
 200         then
 201                 break;
 202         fi
 203
 204         sleep 1
 205 done
 206
 207 log_end_msg
 208
 209 if [ -z "${updates_root}" ]
 210 then
 211         log_begin_msg "Could not find driver updates"
 212         log_wait_msg "Re-insert install CD and press ENTER"
 213         exit 0
 214 fi
 215
 216 log_begin_msg "Copying driver updates to temporary location"
 217
 218 mkdir -p /tmp/driver-updates
 219 cp ${updates_root}/*_${DPKG_ARCH}.deb /tmp/driver-updates/
 220 umount ${mountpoint}
 221
 222 if [ -x /usr/bin/eject ]
 223 then
 224         eject
 225 fi
 226
 227 log_end_msg
 228
 229 log_wait_msg "Re-insert install CD and press ENTER."