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