Did you set the "boot" bit on the 8gb flash card? The later versions of the OS can not see or boot from the uSD card unless the "boot" bit is set.
The "CCCCCC" string means that the BBB can not see the card, and is trying to boot from the serial port. --- Graham == On Tue, Jan 20, 2015 at 8:07 AM, <br...@forceconstant.com> wrote: > So I got my 8gb flash, and resized original boards partition to be smaller > than second board. So now the problem is I have flashed new board, and it > will not boot up. I can mount and view both partitions correctly, and > everything looks ok, but I only get "CCC" when trying to boot and viewing > with FTDI cable. Any ideas? > > Disk /dev/mmcblk1: 3867 MB, 3867148288 bytes > > 4 heads, 16 sectors/track, 118016 cylinders, total 7553024 sectors > > Units = sectors of 1 * 512 = 512 bytes > > Sector size (logical/physical): 512 bytes / 512 bytes > > I/O size (minimum/optimal): 512 bytes / 512 bytes > > Disk identifier: 0x00000000 > > > > Device Boot Start End Blocks Id System > > /dev/mmcblk1p1 * 2048 198655 98304 e W95 FAT16 ( > LBA) > > /dev/mmcblk1p2 198656 7571455 3686400 83 Linux > > > > On Tuesday, December 2, 2014 at 11:20:13 PM UTC-5, Graham wrote: >> >> I think you will have two problems. >> >> First, you can not put a 4GB file on a 4 GB card, because there must also >> be room for the >> Linux OS, and depending on the version, this can be another 1 GB, or more. >> >> Second problem is that when you install a 2 GB image on a 4 GB card, the >> partition as >> installed is typically about 2 GB, and the rest of the card can not be >> used, until you >> expand the partition to the full size of the card. >> >> So, for working with the 4 GB eMMC version of the Beaglebone Black, you >> must use >> at least an 8 GB card. I use 16 GB, so that there is room for about >> three images >> that are not compressed. You can not go larger than 32 GB at this time. >> >> --- Graham >> >> == >> >> On Tuesday, December 2, 2014 5:57:16 PM UTC-6, br...@forceconstant.com >> wrote: >>> >>> So in that other thread, it was instructed to use the same dd command >>> "dd if=/dev/mmcblk1 of=/mnt/BeagleBoneBlack-eMMC-image-$RANDOM.img >>> bs=10M" to create image, so why would mine only end up 2GB instead of 4GB? >>> I cannot follow those instructions exactly, as I only have a 4GB SD card, >>> so maybe this is the problem since the eMMC is 4GB also. >>> >>> On Tuesday, December 2, 2014 5:22:47 PM UTC-5, janszyma...@gmail.com >>> wrote: >>>> >>>> there is another thread here *Duplicate BeagleBone black setup* >>>> <https://groups.google.com/forum/embed/?place=forum/beagleboard&showsearch=true&showpopout=true&showtabs=true&hideforumtitle=true&parenturl=http%3A%2F%2Fwww.beagleboard.org%2FCommunity%2FForums#%21category-topic/beagleboard/beaglebone-black/hKuAggxij40> >>>> dated >>>> Nov 28, where you will find a solution to your problem. >>>> Good luck. >>>> Jan >>>> >>>> On Wednesday, December 3, 2014 6:32:08 AM UTC+11, >>>> br...@forceconstant.com wrote: >>>> >>>>> I am trying to clone an existing BBB, so my first try is using the >>>>> scripts on http://elinux.org/BeagleBone_Black_Extracting_eMMC_contents >>>>> . So first thing I notice is the .img file created was only 2GB, whereas >>>>> this is a newer BBB that has 4GB eMMC. So when I updated script to write >>>>> the img to new BBB, it no longer boots from eMMC. i would like to make >>>>> exact copies including uENV.txt, etc. Does anyone know why this is not >>>>> working? >>>>> >>>>> The read command script is >>>>> >>>>> #!/bin/sh >>>>> echo timer > /sys/class/leds/beaglebone\:green\:usr0/trigger >>>>> dd if=/dev/mmcblk1 of=/mnt/BeagleBoneBlack-eMMC-image-$RANDOM.img >>>>> bs=10M >>>>> sync >>>>> echo default-on > /sys/class/leds/beaglebone\:green\:usr0/trigge >>>>> >>>> -- > For more options, visit http://beagleboard.org/discuss > --- > You received this message because you are subscribed to a topic in the > Google Groups "BeagleBoard" group. > To unsubscribe from this topic, visit > https://groups.google.com/d/topic/beagleboard/u12eEHlfvmE/unsubscribe. > To unsubscribe from this group and all its topics, send an email to > beagleboard+unsubscr...@googlegroups.com. > For more options, visit https://groups.google.com/d/optout. > -- 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 beagleboard+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout.
