Pete Popov wrote: > Ulrich Eckhardt wrote: > > Hmmm, I just had a scary thought: I don't have any userspace programs > > running yet, meaning also no cardmgr, because I intend to boot from that > > CF card - is that possible at all? FYI, I don't need any hotplugging at > > all. > > Do you really mean "boot" from it or "root" from it? If you want to "boot" > from it, you need to work on your boot loader to be able to fetch the > kernel from CF. I have two MiB of flash on board, which contains the bootloader (YAMON) and some free space for a kernel. This is used to boot from. IOW, I mean to root from the CF card, not to boot from it. > If you mean "root" from it, then you are approaching this > the wrong way -- it won't work through the pcmcia stack and cardmgr because > that means you already have a root fs up and mounted. You could do this by > creating a small ramdisk to serve as the root fs, run a special script on > startup that loads the driver, starts cardmgr, cardmgr then detects the > card and loads ide-cs.o, and finally the script exits back to the kernel. > At that point the kernel mounts the real rootfs which is on the card > itself. Sounds like the way to go. > Or, you use the ide mode/feature of CF and get it to work that way, but > I've never had to do that myself. Then the card looks like an ide device. > That's something one of our guys at Embedded Alley has done in the past. > Don't know how easy it is; I'll ping him. Sounds like another way to go, in particular since I don't need hotplugging and other PCMCIA features (and their overhead). Pete, I owe you a beer. I can see a few things much, much clearer now, thanks! Uli
