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|
#! /bin/sh
set -e
. /usr/share/debconf/confmodule
#set -x
log() {
logger -t cdrom-detect "$@"
}
fail () {
log "CDROM-detect failed."
exit 1
}
# Is a cdrom already mounted? If so, assume it's the right one..
mount | grep -q ^/dev/cdroms/ && exit 0
if [ -e /cdrom/.disk/info ] ; then
CDNAME=`cat /cdrom/.disk/info`
log "Detected CD '$CDNAME'"
exit 0
fi
hw-detect cdrom-detect/detect_progress_title || true
log "Searching for Debian installation media..."
mkdir /cdrom 2>/dev/null || true
while true
do
mounted=0
if [ -d /dev/cdroms ]; then
devices="`echo /dev/cdroms/*`"
else
devices=""
fi
for device in $devices
do
if mount -t iso9660 -o ro,exec $device /cdrom; then
log "CDROM-mount succeeded: device=$device"
mounted=1
db_set cdrom-detect/cdrom_device $device
break
else
log "CDROM-mount failed (error=$?): device=$device"
log "Unmounting CD just to be sure."
umount /cdrom 2>/dev/null || true
log "Trying it again."
if mount -t iso9660 -o ro,exec $device /cdrom
then
log "CDROM-mount succeeded: device=$device"
mounted=1
db_set cdrom-detect/cdrom_device $device
break
else
log "CDROM-mount failed again (error=$?): device=$device"
log "Unmounting CD just to be sure and giving it up."
umount /cdrom 2>/dev/null || true
fi
fi
done
if [ "$mounted" = "1" ]; then
break
fi
# If a device was detected but the mount failed, ask for the CD.
if [ -n "$devices" ]; then
db_input critical cdrom-detect/retry || [ $? -eq 30 ]
db_go
db_get cdrom-detect/retry
if [ "$RET" = "true" ]; then
continue
else
fail
fi
fi
# If no device was detected, perhaps a driver floppy is needed.
if [ -e /usr/lib/debian-installer/retriever/floppy-retriever ]; then
db_input critical cdrom-detect/load_floppy
db_go
db_get cdrom-detect/load_floppy
if [ "$RET" = true ]; then
anna floppy-retriever
hw-detect cdrom-detect/detect_progress_title || true
continue
fi
fi
# Otherwise manual configuration may be needed
db_input critical cdrom-detect/manual_config || [ $? -eq 30 ]
db_go
db_get cdrom-detect/manual_config
modules=none
for i in `ls -1 /lib/modules/*/kernel/drivers/cdrom/ | sed 's/\.ko$//' | sed 's/\.o$//'`
do
modules="$modules, $i"
done
if [ "$RET" = "true" ]; then
db_subst cdrom-detect/cdrom_module choices "$modules"
db_input critical cdrom-detect/cdrom_module || [ $? -eq 30 ]
db_go
db_get cdrom-detect/cdrom_module
module="$RET"
db_input critical cdrom-detect/cdrom_device || [ $? -eq 30 ]
db_go
db_get cdrom-detect/cdrom_device
device="$RET"
if [ "$module" != "none" ]; then
modprobe $module
fi
if mount -t iso9660 -o ro,exec $device /cdrom; then
log "CDROM-mount succeeded: device=$device"
mounted=1
break
else
log "CDROM-mount failed (error=$?): device=$device"
log "Unmounting CD just to be sure and giving it up."
umount /cdrom 2>/dev/null || true
fi
else
fail
fi
done
if [ -e /cdrom/.disk/info ] ; then
CDNAME=`cat /cdrom/.disk/info`
log "Detected CD '$CDNAME'"
else
log "The available CD is not a Debian CD!"
umount /cdrom
db_input critical cdrom-detect/wrong-cd || [ $? -eq 30 ]
db_go
exit 1
fi
# Get all the pool directories into the dentry cache, to cut down on seek
# times.
poolcount="$(set -- /cdrom/pool/*/*; echo $#)"
db_progress START 0 "$poolcount" cdrom-detect/scanning_progress_title
for pooldir in /cdrom/pool/*/*; do
if [ -d "$pooldir" ]; then
db_subst cdrom-detect/scanning_progress_step DIR "$pooldir"
db_progress INFO cdrom-detect/scanning_progress_step
find "$pooldir/" >/dev/null 2>&1
fi
db_progress STEP 1
done
db_progress STOP
# Set the suite used by base-installer and base-config to
# the suite that is on the CD. This assumes that there will
# be no more than one distribution on the CD, and that one of the
# testing, stable, or unstable links will point to it. Since the
# CDs currently have many links, parse the Release file to get the
# actual suite name to use.
for distlink in stable testing unstable ; do
relfile=/cdrom/dists/$distlink/Release
if [ -e $relfile ] ; then
suite=$(sed -n 's/^Suite: *//p' $relfile)
log "Detected CD with '$suite' distribution"
db_set mirror/suite $suite
break
fi
done
# Ask for eject to be installed into /target/, to be able to use it in
# the prebaseconfig script.
apt-install eject || true
# Hey, we're done
db_subst cdrom-detect/success cdname "$CDNAME"
db_input low cdrom-detect/success || [ $? -eq 30 ]
db_go
exit 0
|
