On Fri, Aug 9, 2013 at 2:53 AM, George Hunt <georgejh...@gmail.com> wrote: > Hi Jerry, et al, > > The motherboard flash on an XO1 is 1GB. The kernel, rootfs, provided by OLPC > Boston for the XO1 occupies 745MB. The server software (XSCE) we have been > adding on top of the OS occupies about 1.3GB. So obviously an additional SD > card is required. > > My first approach has been to start with a vfat formatted SD card, change > its format to ext4, without changing its partition layout (I think this > avoids creating erase block/OS write mismatch, which slows and wears SD > cards prematurely). Then I have been copying large chunks from the JFFS to > the SD card, and sym-linking to it, so that additional yum install > operations are diverted to the SD card. > > Recently, Jerry has suggested that I just ignore the motherboard jffs flash, > and run entirely off the SD card. I've been studying how to accomplish > this. It looks to me like the <OS>.img file available for the XO1 is in > jffs2/mtd format which would be appropriate for "dd"ing directly to the > motherboard flash, but probably not correct for "dd"ing to an SD card. > > So here is my question: Does it make sense to let the openfirmware bios > write the OS image to the jffs on the motherboard, and then for me to rsync > that OS, as data, to an ext4 formatted (not repartitioned) SD card? If I do > this will the presence of a signed kernel on the SD card cause the boot > loader to choose the SD card, ignore JFFS, even if the XO is still secured? > > George
George, Have you looked at the XS-on-XO1 0.6 image? Just curious... http://wiki.laptop.org/go/XS-on-XO cheers, Sameer _______________________________________________ Server-devel mailing list Server-devel@lists.laptop.org http://lists.laptop.org/listinfo/server-devel