[BuildTheRobots]

> It requires loading the entire disc into memory first which is going to be slower than purpose built netboot images.

I'm not sure it does require loading the entire image. Servers (Dell/HP) that allow remote mounting iso images will use HTTP-Range requests to be able to 'seek' the disk. I _thought_ (but honestly don't remember) iPXE was capable of range requests too.

[hnlmorg]

In fairness, last time I used ISO with PXE was on BIOS systems. More recent iPXE kernels (if that’s even the right word) might support seek.