Thanks for your answer, I didn't find any official documentation on how to 
make a backup...

But I've managed to make an img as backup with:

dd if=/dev/mmcblk1 | ssh user@targetserver 'dd of=sd-backup.img'


then restored on a uSD the system is able to run from SD.

I've tried to write the generated uSD on the eMMC by keeping down S2, then 
power, then release, without success.

Now I've booted up the system from uSD and launched this command, but it is 
running from an hour, I can see it in top
ssh user@targetserver 'dd if=sd-backup.img' | dd of=/dev/mmcblk1



Is this adviceable? are there other official ways to backup/restore eMMC 
with low timing?  More than one hour for 4GB to be restored, seems to me 
too long.


Il giorno giovedì 30 luglio 2015 21:26:12 UTC+2, William Hermans ha scritto:
>
> And please forgive my improper grammar . . . a few of those you're's 
> should be "your". ;) Multitasking here . . . 
>
> On Thu, Jul 30, 2015 at 12:18 PM, William Hermans <[email protected] 
> <javascript:>> wrote:
>
>> More detail is needed. 
>>
>> Are there files on the eMMC that you need to preserve ?
>>
>> Anyway, I see no instructions on the link you gave. Just a bunch of 
>> "posts" from some source about people talking about various things, perhaps 
>> some of it is related to your problem.
>>
>> To make a proper backup in my own opinion. You need to use either dd, or 
>> tar. Then in the case of recent images, you're going to have to use dd 
>> anyway to preserve the MBR ( Master Boot Record ) which contains the files 
>> MLO, and uboot.img.
>>
>> Anyway, I need to know exactly what you're situation is *right now*, and 
>> what you're hoping to accomplish. Before proceeding further. But if you've 
>> wiped the eMMC already, and you're "backup" is incomplete. Then there may 
>> be no other recourse than to start over fresh again . . .
>>
>> On Thu, Jul 30, 2015 at 12:56 AM, <[email protected] <javascript:>> 
>> wrote:
>>
>>> Hi, 
>>>
>>> I've setup a debian on the:
>>> BeagleBone Black rev 00C0 running BoneScript 0.2.4 at 192.168.7.2
>>>
>>> with this image:
>>> BBB-eMMC-flasher-debian-7.8-lxde-4gb-armhf-2015-07-17-4gb.img 
>>>
>>> everything is fine! Now I want to backup my system  and  followed  the:
>>>
>>>
>>> http://elinux.org/Talk:BeagleBone_Black_Extracting_eMMC_contents#Rev._C_boards_from_Element14_1436
>>> http://elinux.org/BeagleBone_Black_Extracting_eMMC_contents
>>>
>>> I'm using a 16GB uSD, with one partition of  4048MB (tried both on 
>>> windows and on debian with gparted ),
>>> the only forder in the disk is "dtds" with inside the extracted content 
>>> of the zip.
>>>
>>> /media/user/VOLUME$
>>> .
>>> └── dtds
>>>     ├── am335x-boneblack.dtb
>>>     ├── autorun.sh
>>>     ├── MLO
>>>     ├── u-boot.img
>>>     ├── uEnv.txt
>>>     └── uImage
>>>
>>>
>>>
>>> but I'm unable to get it work, heartbeat LED won't change, could someone 
>>> please help me? 
>>>
>>> Thanks in advance! BR
>>>
>>> -- 
>>> For more options, visit http://beagleboard.org/discuss
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>>
>>
>

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