08-01-2022, 09:40 AM
Do be aware that your SD boot is using the uboot ON THE emmc,
this is almost certainly NOT the same as what is on the SD card,
which because of the spin-boot failure is not quite correct
So..maybe better to do partition dd's and then adjust fstab and extlinux.conf
(on emmc, to point to emmc)
You can verify my 1st supposition by disabling/remove emmc and see if it still boots
Then, backup SD mbr and dd 1st 16M from emmc -> SD, restore SD mbr, disable emmc, does it boot?
Or, better order, 1st save 1st 16M (emmc) somewhere on SD (for later convenience)
this is almost certainly NOT the same as what is on the SD card,
which because of the spin-boot failure is not quite correct
So..maybe better to do partition dd's and then adjust fstab and extlinux.conf
(on emmc, to point to emmc)
You can verify my 1st supposition by disabling/remove emmc and see if it still boots
Then, backup SD mbr and dd 1st 16M from emmc -> SD, restore SD mbr, disable emmc, does it boot?
Or, better order, 1st save 1st 16M (emmc) somewhere on SD (for later convenience)