I've managed to really screw up one of my Beaglebone Blacks too. It appears that I have clobbered the partition table on the eMMC, which seems to make U-Boot very unhappy! The AM335x processor skips the eMMC boot and goes directly to uSD boot after power is applied, no matter the position of the boot switch. I have tried booting several eMMC flashers, but none have worked:
The latest Debian (5/14/14) shows this in serial console: U-Boot SPL 2014.04-00014-g47880f5 (Apr 22 2014 - 13:23:54) ** Partition 1 not valid on device 0 ** spl_register_fat_device: fat register err - -1 ### ERROR ### Please RESET the board ### and reboots every ~48 seconds Angstrom (06/20/13) shows this once: U-Boot SPL 2013.04-dirty (Jun 19 2013 - 09:57:14) musb-hdrc: ConfigData=0xde (UTMI-8, dyn FIFOs, HB-ISO Rx, HB-ISO Tx, SoftConn) musb-hdrc: MHDRC RTL version 2.0 musb-hdrc: setup fifo_mode 4 musb-hdrc: 28/31 max ep, 16384/16384 memory USB Peripheral mode controller at 47401000 using PIO, IRQ 0 musb-hdrc: ConfigData=0xde (UTMI-8, dyn FIFOs, HB-ISO Rx, HB-ISO Tx, SoftConn) musb-hdrc: MHDRC RTL version 2.0 musb-hdrc: setup fifo_mode 4 musb-hdrc: 28/31 max ep, 16384/16384 memory USB Host mode controller at 47401800 using PIO, IRQ 0 OMAP SD/MMC: 0 ** Partition 1 not valid on device 0 ** spl: fat register err - -1 ### ERROR ### Please RESET the board ### I even tried an old BBW A6A image from 11/12/12: U-Boot SPL 2011.09-00053-gb423c52 (Aug 10 2012 - 11:26:55) Texas Instruments Revision detection unimplemented No daughter card present Did not find a recognized configuration, assuming General purpose EVM in Profile 0 with Daughter board I have used the Ubuntu 12.04 Disks tool to wipe the partitions and/or format the uSD card. I have tried Win32 Disk Imager version 0.9 and 0.91 on Windows 7x64. I have tried dd under Ubuntu. I have also tried several different uSD cards. The board is powered via a 24v, 50 watt power supply going to a 5v 50 watt DC-DC converter (the other 7 BBBs running on this power supply are fine....). This is a Rev C from Element14. Any other insight? I'm running out of ideas....perhaps I can fiddle with U-Boot? Is there a special version, of U-Boot, that will ignore the eMMC, or give me the power to create a partition table? If I can just get a user prompt, that would go a long way. Thanks, Louis On Tuesday, October 28, 2014 10:52:17 AM UTC-5, RobertCNelson wrote: > > On Tue, Oct 28, 2014 at 7:10 AM, <[email protected] <javascript:>> > wrote: > > Hi, > > > > So I have done something rather stupid and managed to brick my BBB! > > > > I was attempting to copy a bootable SD image using the dd command to the > > nand flash, and instead of copying the rootfs partition I copied the > boot > > partition! e.g. > > > > dd if=/dev/mmcblk0p1 of=/dev/mmcblk1p1 > > > > Now the device does not boot, no LED's apart from power. > > > > If I look at the serial console output all I get is the letter 'C' > repeated > > every 300m or so. :( > > Just reflash: > > http://beagleboard.org/latest-images > > Regards, > > -- > Robert Nelson > http://www.rcn-ee.com/ > -- For more options, visit http://beagleboard.org/discuss --- You received this message because you are subscribed to the Google Groups "BeagleBoard" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. For more options, visit https://groups.google.com/d/optout.
