(In reply to Matthias Brugger from comment #15) > Yes, Grub usese the EFI implementation of U-Boot to access the HW. And if > U-Boot access to the SD card is buggy, so will be the access from Grub. Aaaah, that explains it. In the meantime Seife's grub workaround allowed the board to build multiple times, but just half an hour ago it dropped into the grub shell. ``` grub > ``` And there it sat waiting for some command... Johannes