tftp-install-sysrcd.sh

#!/bin/bash

# To install systemrescuecd on PXE:
# change the version number
version=3.2.0

wget -c http://aarnet.dl.sourceforge.net/project/systemrescuecd/sysresccd-x86/$version/systemrescuecd-x86-$version.iso

# mount the cdrom image:
mount -o loop systemrescuecd-x86-${version}.iso cd

# create a version dir:
mkdir -p ${version}/pxelinux.cfg

# copy the required files off the cd:
cp -a cd/bootprog ${version}
cp -a cd/bootdisk ${version}
cp -a cd/ntpasswd ${version}
cp -a cd/isolinux/* ${version}

# copy the isolinux.cfg to the pxe directory:
cp -a ${version}/isolinux.cfg ${version}/pxelinux.cfg/default

# copy the actual system files to a netbootable area:
cp -a cd/sysrcd.md5 /var/www/default/
cp -a cd/sysrcd.dat /var/www/default/

# edit the default option to include http netboot, except for root=auto and maps entries
sed -i -e "s/\(APPEND .*\)/\1 dodhcp netboot=http:\/\/172.31.4.254\/sysrcd.dat/g" ${version}/pxelinux.cfg/default
sed -i -e "s/\(APPEND .*\) -- \(.*\)/\1 dodhcp netboot=http:\/\/172.31.4.254\/sysrcd.dat -- \2/g" ${version}/pxelinux.cfg/default

sed -i -e "s/\(APPEND root=auto\).*/\1/g" ${version}/pxelinux.cfg/default
sed -i -e "s/\(APPEND maps.*\) dodhcp.*/\1/g" ${version}/pxelinux.cfg/default
sed -i -e "s/APPEND rescue64 root=auto dodhcp netboot=http:\/\/172.31.4.254\/sysrcd.dat -- rescue32 root=auto dodhcp netboot=http:\/\/172.31.4.254\/sysrcd.dat/APPEND rescue64 root=auto -- rescue32 root=auto/g" ${version}/pxelinux.cfg/default

# umount cdrom image
umount cd

# You also need to do the following

echo "Make sure an entry similar to the following exists in the pxe root"
echo
echo "LABEL rescuecd"
echo "        kernel pxechain.com"
echo "        append ::systemrescuecd/${version}/pxelinux.0"