I mean why isn't the boot loader getting on the uSD I've created using the 
script?  I know why it needs to be there...

How do I solve this such that I can slam the created uSD into a new BBB and 
have flash eMMC?

On Wednesday, July 27, 2016 at 2:46:30 PM UTC-7, William Hermans wrote:
>
> The line I've highlighed in yellow seams to be the problem.  
>> Why is the cloning script getting a bootloader in here? 
>>
>> Any help much appreciated!
>>
>
> What do you mean "why?" ? Short answer is that a bootloader( actually two 
> - first and second stage ) is required to boot from eMMC.
>
> dd if= of=/dev/mmcblk1 count=1 seek=1 bs=128k is in reference to MLO I 
> believe. uboot.img is roughly 348k as I recall.
>
> On Wed, Jul 27, 2016 at 2:26 PM, Matt99eo <[email protected] 
> <javascript:>> wrote:
>
>> Hi, 
>>
>> Been trying to clone a debian 8.4 running kernel 4.1.x using the RC 
>> Nelson script beaglebone-black-make-microSD-flasher-from-eMMC.sh
>>
>> I have ensured that I have the latest script (git pull when in 
>> /opt/scripts/tools)
>> I have ensured the BBB I am cloning has a network connection during the 
>> process.
>>
>>
>> When I insert he  new uSD card into a new BBB to flash it it ends quickly 
>> with a kernel panic.
>>
>> Here is the serial debug output:
>>
>> Starting eMMC Flasher from microSD media
>> Version: [1.20160718: mkfs.ext4 1.43...]
>> -----------------------------
>> Checking for Valid bbb-eeprom header
>> Valid bbb-eeprom header found [335]
>> -----------------------------
>> copying: [/dev/mmcblk0] -> [/dev/mmcblk1]
>> lsblk:
>> NAME         MAJ:MIN RM  SIZE RO TYPE MOUNTPOINT
>> mmcblk1boot0 179:16   0    1M  1 disk 
>> mmcblk1boot1 179:24   0    1M  1 disk 
>> mmcblk0      179:0    0  7.2G  0 disk 
>> `-mmcblk0p1  179:1    0  7.2G  0 part /
>> mmcblk1      179:8    0  3.7G  0 disk 
>> -----------------------------
>> df -h | grep rootfs:
>> -----------------------------
>> Erasing: /dev/mmcblk1
>> 108+0 records in
>> 108+0 records out
>> 113246208 bytes (113 MB) copied, 17.7061 s, 6.4 MB/s
>> [   34.099130] random: nonblocking pool is initialized
>> 108+0 records in
>> 108+0 records out
>> 113246208 bytes (113 MB) copied, 4.35786 s, 26.0 MB/s
>> Erasing: /dev/mmcblk1 complete
>> -----------------------------
>> Writing bootloader to [/dev/mmcblk1]
>> dd if= of=/dev/mmcblk1 count=1 seek=1 bs=128k
>> -----------------------------
>> dd: failed to open '': No such file or directory[   35.897114] Kernel 
>> panic - not syncing: Attempted to kill init! exitcode=0x00000100
>> [   35.897114] 
>> [   35.911129] CPU: 0 PID: 1 Comm: init-eMMC-flash Not tainted 
>> 4.1.21-bone-rt-r20 #1
>> [   35.918639] Hardware name: Generic AM33XX (Flattened Device Tree)
>> [   35.924801] [<c0012e01>] (unwind_backtrace) from [<c0010fe9>] 
>> (show_stack+0x11/0x14)
>> [   35.932590] [<c0010fe9>] (show_stack) from [<c05e2049>] 
>> (panic+0x6d/0x188)
>> [   35.939500] [<c05e2049>] (panic) from [<c002fea9>] 
>> (complete_and_exit+0x1/0x18)
>> [   35.946844] [<c002fea9>] (complete_and_exit) from [<c00372c1>] 
>> (sigprocmask+0x59/0x88)
>> [   35.954801] [<c00372c1>] (sigprocmask) from [<00000001>] (0x1)
>> [   35.960665] ---[ end Kernel panic - not syncing: Attempted to kill 
>> init! exitcode=0x00000100
>> [   35.960665] 
>>
>> The line I've highlighed in yellow seams to be the problem.  
>> Why is the cloning script getting a bootloader in here? 
>>
>> Any help much appreciated!
>>
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>

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