Robert P. J. Day wrote: > i'm hoping someone has an example of the following that they're > willing to share. > > currently, the system i've built for our 850 board incorporates > > - boot loader (sadly, not u-boot, but i'm working on it) > - standard zImage.initrd.bin kernel+initrd image > ... mountable JFFS2 filesystem with persistent stuff ... > > obviously, with this layout, it's kind of a nuisance to update > anything individually in the initrd portion of the system, so i'd like > to at least experiment with a layout that has separate > > - boot loader (ideally, u-boot) > - kernel image > - updateable (normally mounted read-only?) root filesystem > ... rest of stuff the same ... > > i'm going to start over at DENX with their docs since that seems to > be the canonical place to get the scoop on this but, in the meantime, > if anyone has built something like this and is willing to share, say, > their makefile so i can see how it goes together, i'd be thrilled. > > if your example happens to *require* u-boot, well, perhaps so much > the better since that will give me the incentive to switch. :-)
We use a scheme on NAND with redundant cramfs rootfs partitions that also contain the proper kernel image(s). It is u-boot specific since it depends on u-boot loading the cramfs kernel image. For persistent storage we use a small JFFS2 partition. > > thanks. > > rday Regards Pantelis
