I am attempting to do the following using the Beagle Bone Black Rev C:
1. Boot the Beagle Bone Black from a USB hard drive.
2. Run autorun.sh automatically to apply a Ubuntu-18.04.img.gz image
file to the Beagle Board Black.
3. Reboot into Unbuntu after the image has been applied.
Note: My end goal is to have the Beagle Bone Black configure so it can be
recovered using a .img.gz file from a USB SSD without using a micro SD card
since they can be easily lost. A micro SD card can be used to configure
the board initially if necessary.
*Problems:*
- Can someone recommend a way to force u-boot to start USB automatically
and attempt to boot from USB SSD every time? Note: I am using a powered
USB hub.
- BuildRoot executes /etc/init.d/S99autorun and looks for the autorun.sh
on a micro SD card. Can someone recommend a way to edit this file so it
points to sda1?
I have successfully completed the following using the USB serial connector:
1. Power on the Beagle Bone Black and press spacebar to abort autoboot.
2. Manually execute the following commands from uboot to boot from a USB
hard drive formatted as FAT32.
- usb start
- bootpart=0:1
- bootdir=/
- fatload usb 0:1 ${loadaddr} /uImage
- fatload usb 0:1 ${fdtaddr} /am335x-boneblack.dtb
- setenv bootargs console=${console} ${optargs}
- bootm ${loadaddr} - ${fdtaddr}
3. Execute the following commands in autorun.sh file:
- echo timer > /sys/class/leds/beaglebone\:green\:usr0/trigger
- dd if=/dev/sda1 bs=16M |gzip -c > /mnt/Ubuntu-18.04.img.gz
- sync
- echo default-on > /sys/class/leds/beaglebone\:green\:usr0/trigger
- 4. Reboot Beagle Bone Black into Unbuntu.
I downloaded the files for applying the image from the following link:
https://elinux.org/BeagleBone_Black_Extracting_eMMC_contents
The following article mentions creating a script and running it from a
micro SD card:
https://groups.google.com/forum/#!searchin/beagleboard/boot$20beagle$20board$20from$20usb$20hard$20drive|sort:date/beagleboard/iznBJnxa-AU/Ezt1-bYQBgAJ
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For more options, visit http://beagleboard.org/discuss
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