How to boot from an image on a local drive ?

[ruymbeke]

Hello,
It may be obvious or maybe an uncommon request but
how to boot from an (ISO) image located on a local disk drive ?
All info I found are about network boot but what about boot from local data ?
I cannot find a working syntax using sanboot nor chain. I can boot from
a drive (boot sector) but not from an image file on that drive.
All help will be much appreciated.
Thanks,
Ruymbeke

[robinsmidsrod]

There is no filesystem support in iPXE, which is why you can't boot from local storage (except via MBR). Filesystem support is not something iPXE will probably ever get. Use grub for your specific ISO requirements or unpack the ISO and load the specific parts directly over the network.