I am not 100% sure how uboot handles everything, but I THINK uboot writes things to the disk that is not a partition before the boot partition. I suspect that is what you are trying to make happen with mmcblk0p4. The problem is uboot is not trying to write that data to a partition, it is in unallocated space before the partition (I THINK).I have erased the logical/extended partitions and recreated them with parted and then wrote the images to them. This works ok, so it seems that i'm doing something wrong in the script where i create the partitions.
i figured since nobody answered that could be something to go on to find out what you have to do.
One idea you could look into (again, not sure how uboot handles multiboot) is to INSTALL it again after you have created the partition. Ie, you do not dd that part, you install a NEW uboot on the second boot and only use dd on the root.
Another idea is to use grub instead of uboot, but again, I have not used multiboot or grub on a rpi.
I saw this thread, could maybe be of use to you: viewtopic.php?t=365388
Have not done things like this so I am just spitting ideas here.
Statistics: Posted by bedna — Wed Feb 14, 2024 3:21 am