Out of space error sounds like you were trying to write to the wrong device (or possibly reading from a device that puts out more data than the size of the eMMC). From where I sit though I cannot advise what the correct device name/path would be.
FWIW, probably has nothing to do with your situation, I've had KDE (on NetBSD) stall upon loading, only to successfully finish an absurd amount of time later.
Whilst it's booted, this is probably the time to switch to a different U-boot.
FWIW, probably has nothing to do with your situation, I've had KDE (on NetBSD) stall upon loading, only to successfully finish an absurd amount of time later.
Whilst it's booted, this is probably the time to switch to a different U-boot.