My PBP starts up like a 1977 Chevy Nova
>but I can't boot the machine from USB.
Well, it partly depend on what uboot version you have
I mostly use a bsp uboot (mrfixit v2.0)
None of the normal uboots will boot a sd card in a carrier (adapter) ,,
however tow-boot WILL (not every distro, about 3/4)
you do have to change extlinux changing mmcblkX to sda,
unless it is using LABEL or uuid
I suggest you try installing a distro to a usb stick, and try booting that
--
I think one of the problems with uboot is poor handling of multiple usb connections,
pbp keyboard is usb and it gets priority perhaps
Well, it partly depend on what uboot version you have
I mostly use a bsp uboot (mrfixit v2.0)
None of the normal uboots will boot a sd card in a carrier (adapter) ,,
however tow-boot WILL (not every distro, about 3/4)
you do have to change extlinux changing mmcblkX to sda,
unless it is using LABEL or uuid
I suggest you try installing a distro to a usb stick, and try booting that
--
I think one of the problems with uboot is poor handling of multiple usb connections,
pbp keyboard is usb and it gets priority perhaps