echo "pl_sysinit: invoking hardware initialization script"
/etc/init.d/pl_hwinit
-echo "pl_sysinit: finding cd to mount on /usr"
-mounted=0
-initrd_version=$(/bin/cat /pl_version)
-mkdir /usr
-
-# so that * expands to empty string if there are no block
-# devices
-shopt -s nullglob
-
-for device in /sys/block/*; do
- device=$(/bin/basename $device)
-
- # skipping any devices that start with md or ra (ram) or lo (loop) or
- # fd (floppy)
- start_device=${device:0:2}
- if [ "$start_device" == "ra" ] || [ "$start_device" == "md" ] ||
- [ "$start_device" == "lo" ] || [ "$start_device" == "fd" ]; then
- continue
+check_initrd()
+{
+ _mounted=0
+ if [ -f /usr/isolinux/pl_version ] ; then
+ # it mounted, but we should probably make sure its our boot cd
+ # this can be done by making sure the /pl_version file (on initrd)
+ # matches /usr/isolinux/pl_version
+ initrd_version=$(/bin/cat /pl_version)
+ cd_version=$(/bin/cat /usr/isolinux/pl_version)
+ if [ "$initrd_version" == "$cd_version" ]; then
+ _mounted=1
+ fi
fi
+ return $_mounted
+}
+
+check_block_devices()
+{
+ _mounted=0
+ # so that * expands to empty string if there are no block devices
+ shopt -s nullglob
- # If this is a removable (e.g., USB flash) device, then try to
- # look for an ISO image on each of its partitions.
- if [ "$(cat /sys/block/$device/removable)" = "1" ] ; then
- partitions=$(/bin/awk "\$4 ~ /${device}[0-9]*/ { print \$4 }" /proc/partitions)
- for partition in $partitions ; do
- echo "pl_sysinit: checking $partition for iso image"
- mkdir -p /tmp/$partition
- if /bin/mount -o ro -t msdos,ext2 /dev/$partition /tmp/$partition 2>&1 > /dev/null ; then
+ for device in /sys/block/*; do
+ device=$(/bin/basename $device)
+
+ # skipping any devices that start with md or ra (ram) or lo
+ # (loop) or fd (floppy)
+
+ start_device=${device:0:2}
+ if [ "$start_device" == "ra" ] || [ "$start_device" == "md" ] ||
+ [ "$start_device" == "lo" ] || [ "$start_device" == "fd" ]; then
+ continue
+ fi
+
+ # If this is a removable (e.g., USB flash) device, then try to
+ # look for an ISO image on each of its partitions.
+ if [ "$(cat /sys/block/$device/removable)" = "1" ] ; then
+ partitions=$(/bin/awk "\$4 ~ /${device}[0-9]*/ { print \$4 }" /proc/partitions)
+ for partition in $partitions ; do
+ echo "pl_sysinit: checking $partition for iso image"
+ mkdir -p /tmp/$partition
+ if /bin/mount -o ro -t msdos,ext2 /dev/$partition /tmp/$partition 2>&1 > /dev/null ; then
# Look for the first ISO image
- for iso in /tmp/$partition/*.iso ; do
- if /sbin/losetup /dev/loop0 $iso ; then
- echo "pl_sysinit: using $(basename $iso) on $partition"
- device="loop0"
- break
+ for iso in /tmp/$partition/*.iso ; do
+ if /sbin/losetup /dev/loop0 $iso ; then
+ echo "pl_sysinit: using $(basename $iso) on $partition"
+ device="loop0"
+ break
+ fi
+ done
+ if [ "$device" != "loop0" ] ; then
+ /bin/umount /tmp/$partition 2>&1 > /dev/null
fi
- done
- if [ "$device" != "loop0" ] ; then
- /bin/umount /tmp/$partition 2>&1 > /dev/null
fi
- fi
- done
- fi
-
- echo "pl_sysinit: checking $device for /usr contents"
- /bin/mount -o ro -t iso9660 /dev/$device /usr 2>&1 > /dev/null
- if [ $? -eq 0 ]; then
+ done
+ fi
+
+ echo "pl_sysinit: checking $device for /usr contents"
+ /bin/mount -o ro -t iso9660 /dev/$device /usr 2>&1 > /dev/null
+ if [ $? -eq 0 ]; then
# it mounted, but we should probably make sure its our boot cd
# this can be done by making sure the /pl_version file (on initrd)
# matches /usr/isolinux/pl_version
- cd_version=$(/bin/cat /usr/isolinux/pl_version)
+ initrd_version=$(/bin/cat /pl_version)
+ cd_version=$(/bin/cat /usr/isolinux/pl_version)
- if [ "$initrd_version" != "$cd_version" ]; then
+ if [ "$initrd_version" != "$cd_version" ]; then
# eh, wrong cd, keep trying
- /bin/umount /usr 2>&1 /dev/null
- else
- echo "pl_sysinit: found cd and mounted on /usr"
- mounted=1
- break
+ /bin/umount /usr 2>&1 /dev/null
+ else
+ echo "pl_sysinit: found cd and mounted on /usr"
+ _mounted=1
+ break
+ fi
fi
- fi
-done
+ done
+ return $_mounted
+}
+
+echo "pl_sysinit: finding cd to mount on /usr"
+mounted=0
+check_initrd
+if [ $? -eq 1 ]; then
+ mounted=1
+else
+ [ ! -d /usr ] && mkdir /usr
+ check_block_devices
+ [ $? -eq 1 ] && mounted=1
+fi
if [ $mounted -eq 0 ]; then
echo "pl_sysinit: unable to find boot cdrom, cannot continue."