Re: Big Endian fix patch

[Doug Nazar]

 On 2010-07-28 10:52 AM, Lennart Sorensen wrote:
> I have booted Debian powerpc on qemu before without any issues.
> It just worked.  Well initially the install couldn't boot because it
> was using quik at the time (oldworld mac emulation), and the ramdisk
> image was too large for quik.  I fixed quik to support larger ramdisks
> (and ext3 and such just by using a new libe2fs which also broke it).
This is my first foray into PPC. I've worked with SPARC so I have some 
familiarity with OF but OpenBios just didn't seem to handle what I 
remembered and the help/docs leave a lot to be desired. QEMU/Ubuntu 
mentioned different machine types and several other things that I wasn't 
sure about. Probably makes a lot of sense if you're coming from real 
hardware.

> Without a devalias, grub can't find ANY disks on the IBM firmware.
> With a devalias created, it works fine.  I suppose this qualifies as a
> bug in grub.
Right now the iterate function only scans the /aliases node for block 
devices. I'd rather it scan the real devices however I still want the 
aliases to show up in 'ls'. Still thinking about how to do this without 
too much surgery.

> It is not too bad.  I haven't noticed anything too awful in the display.
> It messes up a lot when it starts scrolling the screen though, so I have
> to 'clear' and then continue to keep it legible.  The menu looks fine.
That's what I was seeing. Turns out the screen-#rows default was way 
off. Resetting that before booting grub made everything pretty.

I didn't dig too deep into Grub's OF console handling to see how it 
handled the output. I saw it read the rows & columns from OF and just 
assumed it was an OpenBios bug. Perhaps it uses a different font or 
something and needs to recalc the height. I'll take a look.

Doug