PXE // System Rescue CD

Warning

new versions SUCK, as with v8 you need to

systemctl stop iptables.service
modprobe ext4

grab the old one instead

wget https://sourceforge.net/projects/systemrescuecd/files/sysresccd-x86/5.3.2/systemrescuecd-x86-5.3.2.iso

note you can also find it on OSDN

Sysrescue 5.x (gentoo based)

mkdir -p /tftpboot/sysrescue/
cd /tftpboot/sysrescue/
wget https://osdn.net/projects/systemrescuecd/storage/releases/5.3.2/systemrescuecd-x86-5.3.2.iso
md5sum systemrescuecd-x86-5.3.2.iso #2a176f64968a7eb76fde5ddb0cc76669

mkdir lala
mount -o ro,loop systemrescuecd-x86-5.3.2.iso lala
cp -R lala 532
umount lala
rmdir lala
rm -f systemrescuecd-x86-5.3.2.iso
cd ../
ls -lF sysrescue/532/isolinux/rescue64
ls -lF sysrescue/532/isolinux/rescue32
ls -lF sysrescue/532/isolinux/initram.igz
ls -lF sysrescue/532/sysrcd.dat

pxelinux

vi /tftpboot/pxelinux.cfg/default

label sysrescue v5 x64
    kernel sysrescue/532/isolinux/rescue64
    append initrd=sysrescue/532/isolinux/initram.igz scandelay=1 setkmap=us dodhcp netboot=http://x.x.x.x/sysrescue/532/sysrcd.dat rootpass=SSH-PASSWORD

label sysrescue v5 x32
    kernel sysrescue/532/isolinux/rescue32
    append initrd=sysrescue/532/isolinux/initram.igz scandelay=1 setkmap=us dodhcp netboot=http://x.x.x.x/sysrescue/532/sysrcd.dat rootpass=SSH-PASSWORD

Sysrescue 6.x (archlinux based)

warning: make sure you have got enough RAM as x86_64/airootfs.sfs (820M) will be loaded onto it

mkdir -p /tftpboot/sysrescue/
cd /tftpboot/sysrescue/
wget https://osdn.net/projects/systemrescuecd/storage/releases/6.0.3/systemrescuecd-6.0.3.iso
md5sum systemrescuecd-6.0.3.iso #6ac22a9cbafdf20da92cba0f1b4e86b6

mkdir lala
mount -o ro,loop systemrescuecd-6.0.3.iso lala
cp -R lala 603
umount lala
rmdir lala
rm -f systemrescuecd-6.0.3.iso

ls -lF sysrescue/603/sysresccd/boot/x86_64/vmlinuz
ls -lF sysrescue/603/sysresccd/boot/x86_64/sysresccd.img
ls -lF sysrescue/603/sysresccd
ls -lF sysrescue/603/sysresccd/x86_64/airootfs.sfs

pxelinux

vi /tftpboot/pxelinux.cfg/default

label sysrescue v6
    linux  sysrescue/603/sysresccd/boot/x86_64/vmlinuz
    initrd sysrescue/603/sysresccd/boot/intel_ucode.img,sysrescue/603/sysresccd/boot/amd_ucode.img,sysrescue/603/sysresccd/boot/x86_64/sysresccd.img
    append archisobasedir=sysrescue/603/sysresccd archiso_http_srv=http://x.x.x.x/ checksum rootpass=SSH-PASSWORD
    sysappend 1

Ready to go

SSH is running already (at least for v5)

ps auxww | grep ssh

you can now watch for DHCP leases and connect right into the box - according to the rootpass= you set

and proceed with the usual crap

mount /dev/sda2 /mnt
mount -o bind /proc /mnt/proc
mount -o bind /dev /mnt/dev
mount -o bind /sys /mnt/sys
chroot /mnt /bin/bash

umount -R /mnt
reboot

you can even fix EFI booting from BIOS mode

RESOURCES

PXE network boot server https://www.funtoo.org/PXE_network_boot_server

Installing SystemRescueCd on a USB stick http://www.system-rescue-cd.org/Installing-SystemRescueCd-on-a-USB-stick/

NETWORK CONFIGURATION AND PROGRAMS https://www.system-rescue.org/manual/Network_configuration_and_programs/

PXE Booting Utilities With FreeBSD http://www.wonkity.com/~wblock/docs/html/pxe.html –> more on sysrescuecd

v5

Netboot HOW-TO document for Linux http://netboot.sourceforge.net/cgi-bin/getdoc.cgi?doc=HOWTO.html&lang=english&source=index&title=Netboot%20HOWTO

How to customize SystemRescueCd http://www.system-rescue-cd.org/Customization/

v6+

DOWNLOAD https://www.system-rescue.org/Download/

Booting SystemRescueCd http://www.system-rescue-cd.org/manual/Booting_SystemRescueCd/

PXE network booting http://www.system-rescue-cd.org/manual/PXE_network_booting/

root/docs https://git.archlinux.org/archiso.git/tree/docs

root/docs/README.bootparams https://git.archlinux.org/archiso.git/tree/docs/README.bootparams

SYSAPPEND bitmask https://wiki.syslinux.org/wiki/index.php?title=SYSLINUX#SYSAPPEND_bitmask

PXELINUX https://wiki.syslinux.org/wiki/index.php?title=PXELINUX

Network configuration and programs –> Running an SSH Server http://www.system-rescue-cd.org/manual/Network_configuration_and_programs/

Managing remote servers using SystemRescueCd http://www.system-rescue-cd.org/manual/Managing_remote_servers_using_SystemRescueCd/