source: MondoRescue/branches/2.2.10/mindi/rootfs/sbin/find-and-mount-cdrom@ 2816

#!/bin/sh


TryToFindCDROM() {
# hda1 is there for testing
    LogIt "find-and-mount-cdrom --- starting"
    for device in /dev/hd? /dev/scd? /dev/rcd? /dev/sr? /dev/cd? /dev/ide/*/*/*/*/cd /dev/scsi/*/*/*/*/cd; do
        [ ! "$SECOND_TRY" ] && LogIt "Trying $device"
        if [ -f $MINDI_CACHE/mondorestore.cfg ] && [ "`grep "using-cdstream yes" $MINDI_CACHE/mondorestore.cfg 2> /dev/null`" ]; then
            pwd=`pwd`
            cd $GROOVY
            tar -zxf $device 2> /tmp/mount.log
            res=$?
            cd $pwd
            if [ "$res" -eq "0" ] ; then
                LogIt "Using cdstream as extended datadisk ($device). Good." 3
                echo "Using cdstrea as extd dsk." > /tmp/TAPEDEV-HAS-DATA-DISKS
                ln -sf $device /dev/cdrom
                exit 0
            fi
        else
            mount $device -t iso9660 -o ro /mnt/cdrom 2> /tmp/mount.log
            res=$?
        fi
        if [ "$res" -ne "0" ] ; then
            res=`cat /tmp/mount.log`
            if [ "$res" = "mount: No medium found" ] ; then
                [ ! "$SECOND_TRY" ] && LogIt "There is a CD-ROM drive at $device but no CD in it."
            else
                [ ! "$SECOND_TRY" ] && LogIt "It's not in $device; I'll keep looking"
            fi
            continue
        fi
        LogIt "$device has a CD-ROM in it"
        umount /mnt/cdrom
        ln -sf $device /dev/cdrom
        if [ "$?" -ne "0" ]; then
            LogIt "Unable to softlink $device to /dev/cdrom. That's weird."
            continue
        fi
        LogIt "CD-ROM found at $device"
        mount $device -t iso9660 -o ro /mnt/cdrom 2> /tmp/mount.log
        if [ "$?" -ne "0" ] ; then
            LogIt "Cannot mount /dev/cdrom (type iso9660) (dev=$device)"
            continue
        elif [ ! -d "/mnt/cdrom/archives" ] ; then
            LogIt "There is a CD in $device but it's not a Mondo CD"
            continue
        else
            LogIt "$device is where the Mondo CD lives."
            which hdparm > /dev/null 2> /dev/null && hdparm -u1 -c3 -d1 $device
            return 0
        fi
    done
    LogIt "Failed to find CD-ROM"
    return 1
}


# -------------- main ------------

[ "$1" = "--second-try" ] && SECOND_TRY=yes
if [ ! "$GROOVY" ] ; then
    LogIt "I'm not groovy!"
    exit 1
fi

TryToFindCDROM
if [ "$?" -eq "0" ] ; then
    [ "$SECOND_TRY" ] && add="At 2nd attempt, " || add=""
    LogIt $add"CD-ROM found and mounted at $device" 3
    echo "$device" > $MINDI_CACHE/CDROM-LIVES-HERE
    LogIt "find-and-mount-cdrom --- leaving (0)"
    exit 0
fi
[ "$1" = "--second-try" ] && exit 1; 
if [ -f $MINDI_CACHE/mondorestore.cfg ] && [ "`grep "using-cdstream yes" $MINDI_CACHE/mondorestore.cfg 2> /dev/null`" ] ; then
    LogIt "Because you are using cdstream, I won't try to mount CD."
    exit 0
fi

LogIt "Unable to find and mount your CD-ROM" 1
LogIt "You probably miss the correct driver to support your CD-ROM drive" 1
exit 2