Netboot/syslinux.md

Network booting

without GRUB

https://www.youtube.com/watch?v=U3RC20ANomk

apt install dnsmasq

/etc/dnsmasq.conf

interface=<your interface>,lo
bind-interfaces
dhcp-range=<your interface>,192.168.11.101,192.168.11.200
dhcp-boot=pxelinux.0
dhcp-match=set:efi-x86_64,option:client-arch,7
dhcp-boot=tag:efi-x86_64,syslinux.efi
enable-tftp
tftp-root=/srv/tftp

mkdir -p /srv/tftp

apt install syslinux-common syslinux-efi

cd /usr/lib/syslinux/modules/efi64

cp ldlinux.e64 libutil.c32 menu.c32 /srv/tftp

cp /usr/lib/SYSLINUX.EFI/efi64/syslinux.efi /srv/tftp

mkdir /srv/tftp/pxelinux.cfg

/srv/tftp/pxelinux.cfg/default

UI menu.c32
LABEL FIKS OS
        MENU LABEL FIKS
        KERNEL vmlinuz
        APPEND initrd=initrd.img debug components boot=nfs ip=dhcp root=/dev/nfs nfsroot=192.168.11.11:/srv/nfs/live/ ro
        TEXT HELP
                Lmao Yeet!
        ENDTEXT

systemctl restart dnsmasq.service

apt install nfs-kernel-server

mkdir -p /srv/nfs/live

/etc/exports

/srv/nfs        *(ro,sync,no_root_squash,no_subtree_check)

exportfs -a

systemctl restart nfs-kernel-server

Client system

apt install live-build live-config

mkdir live-fiks && cd live-fiks

lb config -b netboot --net-root-path "/srv/nfs" --net-root-server "192.168.11.11"

lb build

cd ..

mkdir initrd-workdir && cd initrd-workdir

unmkinitramfs /boot/initrd.img-$(uname -r) .

cd main

/etc/initramfs-tools/modules

e1000
igb
r8169
nfs
nfsv3
nfsv4
sunrpc
lockd
fscache
overlay

find . | cpio -H newc -o | gzip -9 > /srv/tftp/initrd.img

mksquashfs / /opt/fiks-image.squashfs -e /proc /sys /dev /tmp /run /mnt /media /var/cache /var/tmp /opt

scp initrd.img server@192.168.11.11:/srv/nfs/

Back on the server

mount -o loop /srv/nfs/fiks-image.squashfs /srv/nfs/tmp/

cp -a /srv/nfs/tmp/* /srv/nfs/live/

mkdir live/{dev,proc,run,sys,tmp}