[OLPC-devel] you can try this

Marcelo Tosatti marcelo at kvack.org
Thu May 25 19:20:14 EDT 2006


On Thu, May 25, 2006 at 04:27:48PM -0600, Ronald G Minnich wrote:
> Goodrich,Steven wrote:
> >Sorry for breaking that 64k limit; I'm not sure how else we could get VG
> >(graphics) support.
> 
> not a problem! it forced me to do something we *had* to do!
> 
> >
> >I'm trying to build the LinuxBIOS image, but it's asking for a payload
> >and I'm not sure what to give it. I'll grab a new snapshot in a few
> >minutes and try building again.
> 
> The olpc rev-a will look for /tmp/olpcpayload.elf. Just, for now, do 
> that dance I mentioned in an earlier email.
> 
> objcopy -R .note -R .comment -S vmlinux vmlinux.strip
> cp vmlinux.strip /tmp/olpcpayload.elf
> 
> >
> >Hmm... How are we going to get VSA into the LinuxBIOS distribution so
> >others can build?
> 
> I have no clue :-)
> 
> 
> >
> >I also need to get a new MSR list from the current build (with the
> >new/bigger VSA) to see how much of the VG is being initialized (if any),
> >and then to make a list of what else needs to be initialized.
> 
> tell me what MSRs you want. I can't run that program (linux is not up .. 
> help somebody ... how do I boot a usb dongle on OLPC) but I can put a 
> dump in linuxbios

If you have a large enough storage device might want to try Fedora:

http://people.freedesktop.org/~david/olpc-usb-ready-20060517.img.bz2

Not my case, so I'm using SYSLINUX loader with a simple BusyBox userspace.

# mkdosfs /dev/sdb (or whatever name you get assigned to your USB stick)

edit /etc/mtools.conf, fixup "e:" to point to your USB stick.

# sh buildusbdisk.h 
(attached)

http://hera.kernel.org/~marcelo/olpc/rootfs.gz
http://hera.kernel.org/~marcelo/olpc/bzImage

Kernel configuration is the same as posted in previous email.


-------------- next part --------------
DEFAULT linux
append initrd=rootfs.gz root=/dev/ram rw
TIMEOUT 10
PROMPT 1
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