yaboot architecture

[Cian Duffy]

>
> 1. There are not much platform specific initialization
> code i.e. Power G3, G4, G5 etc specific code in yaboot


Yaboot is using OpenFirmware, so its not even theorethically platform
specific to PowerPC/Power... however, its compiled for PowerPC (generic 32
bit), and due to firmware bugs in some machines has some workarounds for
specific computers.

2. Is "yaboot" something like "GRUB" i.e. after
> poweron on x86 based systems BIOS takes control, loads
> GRUB which in turn has the option to boot strap either
> windows or Linux ?


Its almost exactly equivalent to Lilo - can be made load a kernel to launch
Linux or re-point itself at the bootloader of another partition. Although I
think it has some level of internal shell like Grub has.


3. Is it like platform specific code for G3, G4 based
> machines actually launches "yaboot" which in turn
> reads the MBR from disk driver and loads the Linux
> kernel ?


I don't know what you mean there... Hopefully the other answers helped.

Cian
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