iPXE boot with mSATA

[robinsmidsrod]

I'm going to assume you want to use the mSATA device to store other stuff as well. In that case, you'll have to put some kind of boot loader on it, like syslinux or grub, and build ipxe.lkrn and boot that from your first-stage boot-loader.

If you don't care about using the device for anything else, I think you can just use dd to write the ipxe.usb image (or possibly even ipxe.dsk) directly to the device.