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, [email protected]
> wrote:
>>
>> So in that other thread, it was instructed to use the same dd command "dd
>> if=/dev/mmcblk1 of=/mnt/BeagleBoneBlack-eMMC-image-$RANDOM.img bs=10M" to
>> create image, so why would mine only end up 2GB instead of 4GB? I cannot
>> follow those instructions exactly, as I only have a 4GB SD card, so maybe
>> this is the problem since the eMMC is 4GB also.
>>
>> On Tuesday, December 2, 2014 5:22:47 PM UTC-5, [email protected]
>> wrote:
>>>
>>> there is another thread here *Duplicate BeagleBone black setup*
>>> <https://groups.google.com/forum/embed/?place=forum/beagleboard&showsearch=true&showpopout=true&showtabs=true&hideforumtitle=true&parenturl=http%3A%2F%2Fwww.beagleboard.org%2FCommunity%2FForums#%21category-topic/beagleboard/beaglebone-black/hKuAggxij40>
>>> dated
>>> Nov 28, where you will find a solution to your problem.
>>> Good luck.
>>> Jan
>>>
>>> On Wednesday, December 3, 2014 6:32:08 AM UTC+11,
>>> [email protected] wrote:
>>>
>>>> I am trying to clone an existing BBB, so my first try is using the
>>>> scripts on http://elinux.org/BeagleBone_Black_Extracting_eMMC_contents
>>>> . So first thing I notice is the .img file created was only 2GB, whereas
>>>> this is a newer BBB that has 4GB eMMC. So when I updated script to write
>>>> the img to new BBB, it no longer boots from eMMC. i would like to make
>>>> exact copies including uENV.txt, etc. Does anyone know why this is not
>>>> working?
>>>>
>>>> The read command script is
>>>>
>>>> #!/bin/sh
>>>> echo timer > /sys/class/leds/beaglebone\:green\:usr0/trigger
>>>> dd if=/dev/mmcblk1 of=/mnt/BeagleBoneBlack-eMMC-image-$RANDOM.img
>>>> bs=10M
>>>> sync
>>>> echo default-on > /sys/class/leds/beaglebone\:green\:usr0/trigge
>>>>
>>>
--
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