> > > Dr. H. Nikolaus Schaller wrote: > > >> After unsuccessfully flashing different root-filesystems, I finally > > >> found this note: > > >>> If you upload rootfs image that is smaller that previous one it > > >>> won't work - you need to attach to bootloader, erase NAND and then > > >>> upload your rootfs first: > > >>> > > >>> cu -l /dev/ttyACM0 > > >>> GTA01Bv3 # nand erase rootfs > > >> This *should* help but I am trying to understand why dfu-util can't > > >> do that? And what do I do if I have no serial interface? Does this > > >> mean I can't ever again flash a (smaller) rootfs? > > > > > > I have no info on the first question, but about the serial interface. > > > The commands above actually run over USB. Simply boot the Neo into > > > uBoot > > > (hold the Aux button while powering on) and select the option to > > > use the > > > console over USB (Move selection using Aux, invoke the selection by > > > pressing > > > power). Then plug in the USB cable and run the "cu" command. > > > > Many thanks for your suggestions, > > but MacOS X has no cu command :-( > > > > And, I want to automate this all with dfu-util.
Mike Montour wrote: > You can use "minicom" from the Darwin Ports collection. I've added a > section on the Wiki: > > http://wiki.openmoko.org/wiki/MacOS_X#USB_Serial To save a few seconds, you could instead use Terminal.app http://www.furl.net/item.jsp?id=24539982 Nikolaus continued: > > BTW: the bug tracker (bugs #419, #719, #726) says it has been solved > > by a newer version of uboot - but to my experience > > it is not completely solved even by an uboot compiled 19th August. > > > > It looks like that contrary to the warnings on http:// > > wiki.openmoko.org/wiki/Flashing_openmoko it is NOT optional. > > > > We all should flash a newer uboot first. On 8/22/07, Igor Foox wrote: > The problem is that many of us don't have a debug board, and it's a > bit scary to flash a new uboot which could brick the device. It would > be nice if some uboot builds were "blessed" so that we know we can > safely flash those without bricking the neo. Even if you flash a known good u-boot image, I think you could still brick the phone if the transfer over USB is interrupted. Therefore better to have access to a serial board, or stick with the old u-boot. So u-boot upgrade is indeed optional, since the workaround is well documented: use the u-boot console command over USB to erase the flash. I have no debug board, but with Linux or with AJZaurusUSB, it is easy to get at the u-boot command line to tinker. David
