PXE booting

official manual

methods

drop a <vm_name>.pxe file in the same directory as the rest of the VM settings (and then change boot device priority)
"flash" gPXE onto the VirtualBox adapter
boot into the gpxe .iso (download it from the rom-o-matic, choose "ISO bootable image", and choose "all-drivers")
- you can use the command line chain URL if you don't want to set up a special DHCP and TFTP server... all you need is a HTTP server
- if you always want to boot into the same URL, you can click on "customize", and add the "chain" command to the "embedded script" box

my experimentation

So far, this is what works for me:

server
- network: "Bridged" mode (ultimately with my neighbor's wifi providing the DHCP server for my VMs)
- OS: SLAX v6.1.2
- webserver: SLAX's monkeyd, started with /boot/pxelinux.cfg/web/start
client
- network: "Bridged" mode
- booting gPXE.iso

The commands I type in are:

ifstat
dhcp net0
chain http://192.168.1.71/boot/pxelinux.cfg/pxelinux.0

The problem is that PXELINUX starts fine, but it's unable to load its pxelinux.cfg/default config file. Unfortunately, it looks like PXELINUX can only load this file via tftp, so we HAVE to start the tftpd on the SLAX box?

Maybe I should just use the "internal" network mode, and use SLAX's own DHCPd? That would be the much more "normal" way to get this done.