On 04/05/2016 01:59 AM, Ulf Hansson wrote: > Although, what puzzles me around this particular issue, is how an SoC > configuration can rely on this fragile behaviour. > All you have to do to break the assumption of fixed mmcblk ids, is to > boot with an SD card inserted and then without. Perhaps these SoCs > just doesn't support this use case!? Both configurations boot reliably; without the uSD inserted, the boot and root partitions on the eMMC are booted instead. Without a uSD inserted, the only mmc block device is the eMMC which is /dev/mmcblk0, and the root partition is still /dev/mmcblk0p2. Note though that this particular bootscript can load add'l bootscripts from the boot partition; in this particular case, the eMMC root partition is set as a fixed UUID in the bootscript from the boot partition. Regards, Peter Hurley -- To unsubscribe from this list: send the line "unsubscribe linux-mmc" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html