I'm a freshly baked owner of a SL5500, and I'm soon gonna start to customize my ROM and stuff... but I have some questions first. They're probably answered somewhere, but I wouldn't have found out, so any pointers to documentation is welcome. I use some OpenZaurus ROM, but I don't know which (I bought a used Z, and don't know which one is installed; not the latest one, I guess).
Now, all my questions are about that RAM/ROM thing, and I could just ask "Which data is lost when?". But to be more specific: One has 3 areas of memory: The ROM, a part of the RAM, where data is saved (call it the Ramdisk), and the RAM itself. I think, whatever power you loose for how much time, the ROM stays as it is, right? And if you do a reboot, the RAM is lost, yes? But what about the Ramdisk? What if I reboot? What if I run out of battery power/replace the battery? I read about an additional battery that's supposed to keep the RAM alive, which runs about 24 hours, does that apply to the ramdisk?
Secondly, how can I use what memory? Ok, I can't directly use RAM, but what about the other 2? I want to have some files from my desktop on my Z, where should I put them? When I use "mount" I find 2 mounted ramfs's, does that mean that there are actually 2 ramdisks? One is mounted on /dev, the other one on /var, which doesn't actually make to much sense for me...
Hmm, so far If anybody can answer any of these questions, I'd be grateful. I read the docs on openzaurus.org, but I didn't really get it...