JP, I'm trying to match the OABI rootfs that comes from neil and the arm Debian side of thins and an OABI kernel. This in the naive hope that the sound/multimedia things would clear up!
I think I'll put BigZ back on lenny with the original way of setting up. I think that if I want OABI kernel + OABI rootfs, without a lot of fiddles I'll need to do a 2.6.20 OABI kernel. I have the bitbake build system. This gives me a reason to use it. One of my experiments allowed me to set up the OABI filesystem and flash the OABI 2.6.21 kernel. The matching modules had to be transplanted after install. Too many fiddles... too little success...
So I'm thinking that if I build OABI 2.6.20, as a first attempt with bitbake, I might be able to do that experiment again with this kernel. I know that the 2.6.20 modules that Neil's installer uses are EABI. So, I don't think it will work straight away. But if I then put the OABI 2.6.20 modules in, yes I'll need to build those I suppose, as replacements for the EABI ones, the system should be able to reboot with a chance of working as well as the original. I'll still have to do manual fixes instead of using zaurus-hardware-support. When I have a working system I can tarball it and use it like the Bigbridge one. So could other people?
That looks like a plan, but for the long term.
For the short term, back to the original and learn it thoroughly! So unless someone comes up with a cunning plan I'm leaving off this thread.