Re: Debian on IBM RS/6000 7248-43p
Le 12/05/2023 à 00:50, Ben Westover a écrit :
Arch Linux's unofficial ppc port lists instructions for installing on
PReP machines [1], so unless they're inaccurate I would assume Linux
still supports PREp.
A PREp partition does not contain any filesystem; it is just
something on which you put an executable using (e.g.) 'dd -of=/dev/sda1
if=...' . An executable does not need to know how it was loaded.
The firmware assumes that a PREp partition contains an executable
image, it loads it and executes it. Traditionnally, this was a Linux
image, bundled with an initramfs and some code to uncompress them, load
them and jump to the kernel with kernel arguments given at build-time.
This, of course, can be replaced by the executable image of a known
bootloader. The bootloader does not need to know about PREp because it
loads kernel and initramfs from another partition.
-- Didier
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