New F11 for XO-1.5 build 32

[Jerry Vonau]

On Mon, 2009-10-19 at 05:13 -0400, John Watlington wrote:
> On Oct 16, 2009, at 5:01 PM, Jerry Vonau wrote:
> 
> > On Tue, 2009-10-13 at 19:09 -0400, Chris Ball wrote:

> > Being an OFW novice I opted to build a multi-boot olpc.fth to be  
> > able to
> > boot the internal/external mmc slots or usb. I didn't want to mess
> > around with the internal olpc.fth, just yet, for fear of messing  
> > that up
> > while testing. I just created a USB "boot-disk" with below olpc.fth
> > file:
> >
> > http://members.shaw.ca/jvonau/pub/olpc.fth
> cool.
> 
This is an updated version, you can now see the options without holding
down the "check" key and does the right thing booting the kernel and
then mounting root. Came across the device names running ofw's
self-test.


> > Not sure if option 4 is valid anymore...
> >
> > Perhaps this could be made available by default in the install?
> > Just a choice between internal/external would be enough, to enable
> > testing of a second image.
> 
> This is the subject of Trac ticket 9457:
> http://dev.laptop.org/ticket/9457
> 
Yea I was looking at that.

> The expected usage model for an XO is that if there is a bootable
> image on the external SD card or USB, it will be booted.   If you
> want to boot from the internal SD card, either remove the external SD
> card or the bootable image installed on it.
> 
> I don't think we want to change this model.
> 
> This is currently broken, due to the way that the kernel names
> devices.   I believe that the proposed solution was to use udev
> in the initramfs image to provide stable names.
> 

Think the key here is to use something like set-bootpath-dev in livecd's
olpc.fth to auto detect where the olpc.fth was picked up (booted?) from.
This is reflected in /ofw/chosen/bootpath, can some one short-cut me to
the source in ofw?

> > Should be able to use filesystem labels here also. LABEL=OLPCRoot for
> > the internal, maybe OLPCRoot2 for the external. That would leave just
> > labeling the filesystem to the tester.
> 
> Can't use filesystem labels, as we are frequently testing standard
> builds (an older one on the internal card, and a newer one on the
> external one.)   Since we distribute disk images, both will have the
> same label by default.
> 
> Cheers,
> wad
> 

Jerry