11-16-2020, 10:33 PM
You should be able to boot from SD, then mount the eMMC and look around on it to see if it's blank. Something like
mount /dev/mmcblk1p2 /mnt
in some terminal emulator, then look in /mnt. Remember to umount /mnt after.
Not to discourage you but there's a big learning curve and learning from mistakes is how I often do it. If there's nothing on the eMMC you should be able to download an image and write it to eMMC. I still use the mrfixit Stretch. Something like
dd if=yourfile.img of=/dev/mmcblk1 bs=1M status=progress
when it finishes shut down and take out the SD. It should boot from the eMMC. Username and password are both rock I think.
If there's anything on the eMMC you want to save, copy it off to the SD while you have it mounted before you overwrite it with the image.
mount /dev/mmcblk1p2 /mnt
in some terminal emulator, then look in /mnt. Remember to umount /mnt after.
Not to discourage you but there's a big learning curve and learning from mistakes is how I often do it. If there's nothing on the eMMC you should be able to download an image and write it to eMMC. I still use the mrfixit Stretch. Something like
dd if=yourfile.img of=/dev/mmcblk1 bs=1M status=progress
when it finishes shut down and take out the SD. It should boot from the eMMC. Username and password are both rock I think.
If there's anything on the eMMC you want to save, copy it off to the SD while you have it mounted before you overwrite it with the image.