PXE Dynamic Multiboot

Dynamically generates an ipxe menu script from the contents of a directory.

Config

config.ini specifies the root directory for the menu

Supported Files

• .iso: sanboot http://$host/path/to/iso
• .pxe: chain --autofree http://$host/path/to/pxe
• .txt: Command used is contents of txt file

Building iPXE

The generated script should be booted from iPXE. You can embed a script into an iPXE rom using the EMBED=myscript.ipxe flag during the inital build.

Booting a kernel+ramdisk

Extract vmlinuz and initrd into a served directory. Create a file called config.ini. A simple config file is shown:

[Alpine Vanilla]
kernel = vmlinuz-vanilla
initrd = initramfs-vanilla
bootargs = 'nomodeset modloop=${hostpath}/modloop-vanilla'

The section name will be displayed on the menu. Multiple sections can be used to indicate multiple boot configurations. Directories containing a config.ini will not be traversed for other bootable files.

The string ${hostpath} can be used in bootargs to indicate the network path of the directory containing config.ini.