[OLPC-devel] you can try this

Marcelo Tosatti marcelo at kvack.org
Thu May 25 19:02:51 EDT 2006


On Fri, May 26, 2006 at 12:37:12AM +0200, Carl-Daniel Hailfinger wrote:
> Ronald G Minnich wrote:
> > 
> > Steve, your VSA was 70k, which busted the 64k limit. So, I have added
> > support to OLPC that assumes that the VSA is NRV2B compressed. This cut
> > it from 70k to 42k. You now have 20k left to consume. More desirable, in
> > future, would be for us to get this down to 32k, to leave room for linux
> > ...
> > I am attaching the nrv2b compressed OLPC VSA. I will be committing the
> > changes for handling a compressed VSA in few minutes. Be warned: you
> > can't go back :-)
> > 
> > Also, Carl-Daniel is working on a better compression mechanism, which I
> > hope we will move to very soon. This will get smaller, I think.
> 
> Yes. For the VSA you just mailed:
> 
> Size  File
> 71926 olpc_vsa.bin
> 42139 olpc_vsa.bin.nrv
> 37517 olpc_vsa.bin.lzma
> 
> Ron, I'll mail you a patch for lzma support very soon. Just working
> out the final bits to make it perfect. Can I submit a patch against
> revision 2312 or do you have more in the queue?

Carl,

While at it, you might want to check kernel's LZMA compression:

http://www.zelow.no/floppyfw/download/Development/Patches/kernel/040-lzma-vmlinuz.diff




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