Dinosaur wrote:Downloaded the file and followed the instructions to confirm the checksum and wrote a uSD.
Put it into the BBB to boot and got the little Penguin and a flashing cursor.
Left it for 5 minutes, and then powered down to try again with the same result.
Here is a login prompt after ~15 sec. As I said, I don't use a keyboard. Instead I've an ethernet connection to my network and log in from PC by ssh. But for you I connected a monitor: after the Tux there's a text message, the login prompt and a blinking cursor.
It seems that your system has no clean uSD boot. This looks like anything from eMMC disturbs the boot process. Make a further try and press the boot button on the board. Or, better than pressing the uSD boot button is to use a cable to connect pins P8_01 and P8_43 while booting. (The little button on the board is not easy to handle.) Release the cable when the LEDs start to blink.
Dinosaur wrote:I will now try another uSD and use different method of writing the uSD.
ie: Etcher or what I have done for many years.
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sudo dd of=/dev/sdc if=dino_8GB.xz
This wont work!!! The file
dino_8GB.xz is compressed. You'll have to decompress first
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xzcat dino_8GB.xz > image.bin
sudo dd if=image.bin of=/dev/sdc
The command above does these two steps in one, using a pipe instead of an intermediate file.
Dinosaur wrote:What method did you use to READ the uSD into an image.
I used
dd to read the uSD. But I was too lazy to specify the size, so I used
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sudo dd if=/dev/mmcblk0 | xz > dino_8GB.zx
Instead I should have used
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sudo dd if=/dev/mmcblk0 bs=1M count=2G iflag=count_bytes status=progress | xz > dino_2GB.xz
At your place I wouldn't change anything at this uSD. Instead I'd care about the BBB and its eMMC.
Dinosaur wrote:Will let you know how I go.
Maybe I need to "Restore the BBB" and then wipe the emmcblk the way you suggested.
At the moment that area of the BBB is totally inaccessible.
It doesn't make sense to restore and then override the restored setup. Just care about a clean wipe out.
I thought you did already wipe the eMMC. Perhaps you should wipe more than the boot sector, ie.
sudo dd if=/dev/zero bs=512 count=1024 of=/dev/mmcblk1 (after booting from uSD -> check the disc size by
df -h to erase the right drive).
Your first issue is to get the system running again. I recommend to have at least two uSD. One with a fresh original image for emergency boots.
Regards