CTF: UEFI HTTP boot support

Rebecca Cran rebecca at bsdio.com
Wed Jun 17 19:50:55 UTC 2020


> On Jun 17, 2020, at 12:12 PM, Warner Losh <imp at bsdimp.com> wrote:
> 
> I missed the start of this thread, so maybe I'm missing a key detail. However, I thought UEFI didn't have a RAM-disk, per se, but that we could load memory areas and pass that into the kernel using freebsd-only methods. But UEFI is a bit weird, so maybe it will generate a virtual cdrom...

See https://uefi.org/sites/default/files/resources/FINAL%20Pres4%20UEFI%20HTTP%20Boot.pdf

“ RAM Disk Standard

• UEFI 2.5 defined RAM Disk device path nodes
- Standard access to a RAM Disk in UEFI
- Supports Virtual Disk and Virtual CD (ISO image) in persistent or
volatile memory”


— 
Rebecca Cran


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