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