Beaglebone black emmc boot

[ftravers]

isn't

setmmcroot=setenv mmcroot /dev/mmcblk0p2 rw

blk0 the sd card??? I would have thought you'd wanted to put:

mmcblk1p2

as the mmcroot??? weird.

[joshblake]

Has there been any developments yet on this? Hate to play the 'same problem' game but I'm at a loss at what to do.

Best,

Josh.

[dirtyazn]

$this->bbcode_second_pass_quote('ftravers', 'T')his solution 1/2 works. If you plug your SD card back in ( repartitioned by and had a clean ext4 partition ), and reboot, it'll hang... so this solution doesn't work if you want to use your SD card as extra space.

I'm not confident on what the uEnv.txt should look like, but the previous version before this one was checked into git on Aug 10th worked...if someone has that.

[joshblake]

^^ Sorry I don't really see that as a solution or a resolution. It still requires you to have the root fs on the SD card and not eMMC (read that a clean ext4 partitioned SD card will hang the system).

Thanks for the reply though.

[dirtyazn]

$this->bbcode_second_pass_quote('joshblake', '^')^ Sorry I don't really see that as a solution or a resolution. It still requires you to have the root fs on the SD card and not eMMC (read that a clean ext4 partitioned SD card will hang the system).

Thanks for the reply though.

[ftravers]

@dirtyazn:

Sometimes your BBB is not on your desk, so you don't have physical access...in this (very normal) case, you can't have a user access it to push the SD card in. So fairly far from a solution IMHO

If anyone has the boot files from before Aug 10th... I think the uEnv.txt there works, I unfortunately deleted mine

[dirtyazn]

@ftravers

From what you said above you made it seem like the SD wouldn't work at all. I don't know if my black is different but when I put an sd card in it always tries to boot from it whether I hold down the button or not. Is that a problem with the black hardware or is my black retarded or something?

[ArchBrent]

Same here - if the uSD card is inserted, the BBB attempts to boot from it, even though the Boot button has not been pressed.

[moosbart]

booting from the sd card without pressing any button is a feature, at least as far as i understand it.
at http://www.armhf.com/index.php/boards/beaglebone-black/ they say:
$this->bbcode_second_pass_quote('', '
')The new bootloader is setup to probe the external microSD slot at boot time. If a bootable microSD is detected it will be booted instead. The result is that it is no longer necessary to hold down the USER/BOOT button at power-on to boot from microSD this way — the presence of a bootable external microSD card alone will cause it to boot. A non-bootable microSD still causes it to boot from the internal eMMC so one can be used for additional storage while booted from eMMC.

[WarheadsSE]

So basically, remove MLO from the SD card if you want to boot from eMMC. However, Do NOT think that this is something you can mv and then mv back.