Re: Going from 2.2.12 to 2.2.17pre10

2 messages, 2 authors, 2000-07-10 · open the first message on its own page

Re: Going from 2.2.12 to 2.2.17pre10

From: Matt Porter <hidden>
Date: 2000-07-08 23:29:15

On Thu, Jul 06, 2000 at 07:32:49PM +0200, Michael Lundkvist wrote:
Gabriel Paubert [off-list ref] writes:
quoted
Under 2.2.12 dd if=/dev/hda of=xxx bs=512 count=1 and see what comes out.
Can PPCBUG actually boot from these disks ?
PPCBUG expects a little endian partition table, so no.
Nope. I think I'll go for Bugboot. Ramix also talked about the
possibility of modifying PPCBug to add support for the Ramix 233.
I really have to recommend against that.  Once Ramix sees the icky PPCBUG
code they will hate as much as I do.  I gave well documented changes to
the PPCBUG guys so that BUGBOOT wasn't needed to boot a kernel from
FLASH on a PowerPlus board but they haven't incorporated those changes
after a full year now. :)

--
Matt Porter
mmporter@home.com
This is Linux Country. On a quiet night, you can hear Windows reboot.

** Sent via the linuxppc-dev mail list. See http://lists.linuxppc.org/

Re: Going from 2.2.12 to 2.2.17pre10

From: Gabriel Paubert <hidden>
Date: 2000-07-10 12:12:08

On Sat, 8 Jul 2000, Matt Porter wrote:
On Thu, Jul 06, 2000 at 07:32:49PM +0200, Michael Lundkvist wrote:
quoted
Gabriel Paubert [off-list ref] writes:
quoted
Under 2.2.12 dd if=/dev/hda of=xxx bs=512 count=1 and see what comes out.
Can PPCBUG actually boot from these disks ?
PPCBUG expects a little endian partition table, so no.
Ok, my queston was rather: does PPCBUG have support for generic IDE
interfaces or not ?
I really have to recommend against that.  Once Ramix sees the icky PPCBUG
code they will hate as much as I do.  I gave well documented changes to
the PPCBUG guys so that BUGBOOT wasn't needed to boot a kernel from
FLASH on a PowerPlus board but they haven't incorporated those changes
after a full year now. :)
The other change I would like to see in PPCBUG is that it complies with
the documentatioon that claims that its services will work when the MMU is
enabled. At least on 603e it does not work since it sets the MSR IP bit
and then silently crashes in the TLB handlers. I doubt that this would
work on a 604 or a 750 either (I did not test it), but if you get an ISI
or DSI exception, you are probably screwed too.

If people volunteer to write a new MVME bootrom from scratch (or a working
OF), I shall be the first in line to get it and flash it in my boards.
ppc*BUG* deserves its name, at least the second part :-(

	Regards,
	Gabriel.

** Sent via the linuxppc-dev mail list. See http://lists.linuxppc.org/
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