Re: [Ipodlinux-devel] new ipod, etc

[PALFFY D. <dpa...@ra...>]

> I guess as long as you make it hda4 it can find everything ok.  I wonder
> how that would go with the MAC iPods...  That would certainly make the
> setup a lot easier.  I'd imagine the updater program might get a bit
> confused (although maybe not...).

I've chosen hda4 'cause there's a slight chance that when the original
firmware looks at the part table and finds no hda3, doesn't continue and
get confused... But the updater is another thing :) I haven't tried that.

> If you have a few minutes to put together a short howto perhaps I could
> put it up on the website :)

A really short version:

Only tested on 40g ipod, firmware 2.1. On that, the data partition begins
at the 6th cylinder. Check this before proceeding!

dd if=/dev/sda of=mbr.backup bs=512 count=1
dd if=/dev/sda1 of=fw_2.1.backup
fdisk /dev/sda
d 1		# delete first part
n p 1 1 1	# new first primary, from 1st to 1st cyl
a 1		# activate first (dunno if required, originally it was so)
t 1 0		# set to type 0  --"--
n p 4 2 5	# new fourth primary from 2nd to 5th cyl
w		# write
mke2fs -j /dev/sda4
dd if=/dev/sda1 of=fw_to_restore.bin
cp fw_to_restore.bin fw_to_be_patched.bin

Then compile in ext3, copy the root fs to /dev/sda4, set cmdline to
"root=/dev/hda4 rw", patch_fw it to fw_to_be_patched, install it and
enjoy!

I'll write a longer version for the web later...

> The driver should be doing everything right but I guess there may be
> some slightly different initialisation required there.  Especially if
> its a different D2A chip in the g3 hardware.

This was just a very quick check. I'll try to look into this when firewire
works. I could help here much more if I knew the magic addresses of the
chips...

> Not really documented, black magic is about right... you can get some of
> it out of the source and I have a few other notes but its all pretty
> disorganised.

Ok, then I'd really need your help in the initialization stuff... As soon
as I know the mapping between the datasheets of the chips and the
0xcfxxxxxx's, I'll write more code and less email :)

Thanks

--
Dani
			...and Linux for all.