Don't worry! It's only stuff...

#!/bin/bash
 
#MIRROR=http://archive.ubuntu.com/ubuntu/dists/SUITE-proposed/main/installer-ARCH/current/images/netboot/ubuntu-installer/ARCH
MIRROR=http://archive.ubuntu.com/ubuntu/dists/SUITE/main/installer-ARCH/current/images/netboot/ubuntu-installer/ARCH
TFTPDIR=/var/lib/tftpboot/ubuntu/SUITE/ARCH
 
download() {
	SUITE=$1
        ARCH=$2
	FILE=$3
 
	echo -n "    - $3"
 
	MIRROR1=${MIRROR//SUITE/$SUITE}
	MIRROR_TMP=${MIRROR1//ARCH/$ARCH}
 
	TFTPDIR1=${TFTPDIR//SUITE/$SUITE}
	TFTPDIR_TMP=${TFTPDIR1//ARCH/$ARCH}
 
	if [ ! -d $TFTPDIR_TMP ]; then
		mkdir -p $TFTPDIR_TMP
	fi
 
	wget --quiet $MIRROR_TMP/$FILE -O $TFTPDIR_TMP/$FILE
 
	if [ $? == 0 ]; then
		printf "%20s\n" "OK"
	else
		printf "%20s\n" "ERROR"
		echo "$MIRROR_TMP/$FILE"
	fi
}
 
echo "Update Ubuntu netboot files:"
for SUITE in hardy intrepid jaunty karmic; do 
	echo "+ $SUITE"
 
	for ARCH in i386 amd64; do
		echo "  + $ARCH"
 
		for FILE in linux initrd.gz; do
			download $SUITE $ARCH $FILE
		done
	done
done