#!/bin/sh
-PATH=$(dirname $0):/bin:/usr/bin
+export PATH=$(dirname $0):/bin:/usr/bin:/sbin
+cronstopstart="/etc/init.d/cron"
. config.sh
# If the noburn file is there then don't burn.
[ -f "$noburnfile" ] && exit 0
-touch $noburnfile
# Discover disk images by looking for .img.md5sum files in $imagedir
-imgmd5=$(ls $imagedir/*.img.md5sum | head -n 1)
+imgmd5=$(ls $imagedir/*.img.md5sum 2>/dev/null | head -n 1)
+
+# If we didn't find an non-empty file then exit gracefully
+[ -z "$imgmd5" ] && exit 0
+[ -s "$imgmd5" ] || exit 0
echo MD5 file: $imgmd5
echo Logfile: $logfile
-# If we didn't find an non-empty file then exit gracefully
-[ -z "$imgmd5" ] && exit 0
-[ -s "$imgmd5" ] || exit 0
-
# Get the name of the disk image by stripping off the tailing '.md5sum'
img=${imgmd5%.md5sum}
echo Image: $img
+touch $noburnfile
+
# A little paranoia. Make sure the disk image file is there.
[ -z "$img" ] && exit 1
[ -s "$img" ] || exit 1
+# To avoid buffer underruns I'm going to stop cron and renice myself
+$cronstopstart stop
+renice -10 $$
+
# Burn the image to a disk.
cdrecord-wrapper.sh -dao dev=$sdev $img > $logfile 2>&1
exit 1
fi
+# We don't need to be high-priority anymore.
+renice 0 $$
+$cronstopstart start
+
# Now verify the disk by running md5sum on the entire contents of the disk
md5sum=$(tempfile)
echo Md5sum: $md5sum