On Tue, Jul 9, 2019 at 7:50 AM Adam Ford aford173@gmail.com wrote:

I have two different MMC devices and both return 0's for their UUID's

i.MX6 Logic # part list mmc 1

Partition Map for MMC device 1 -- Partition Type: DOS

Part Start Sector Num Sectors UUID Type 1 2048 32768 00000000-01 0c Boot 2 34816 655360 00000000-02 83 i.MX6 Logic # part list mmc 0

Partition Map for MMC device 0 -- Partition Type: DOS

Part Start Sector Num Sectors UUID Type 1 2048 32768 00000000-01 0c Boot 2 34816

From Linux, it's clear they have unique UUID's

# blkid /dev/mmcblk0: PTTYPE="dos" /dev/mmcblk0p1: SEC_TYPE="msdos" LABEL="boot" UUID="880C-488C" TYPE="vfat" /dev/mmcblk0p2: LABEL="rootfs" UUID="03177169-5175-4b80-b271-1400b6407f93" TYPE="ext4" /dev/mmcblk1: PTTYPE="dos" /dev/mmcblk1p1: SEC_TYPE="msdos" LABEL="boot" UUID="BEF5-8B62" TYPE="vfat" /dev/mmcblk1p2: LABEL="rootfs" UUID="e7a80a96-752e-49b0-a1b9-292199bf20a4" TYPE="ext4" #

I have tried setting a variety of UUID related flags in the menuconfig yet I still get 0's

CONFIG_CMD_UUID=y CONFIG_CMD_FS_UUID=y CONFIG_PARTITION_UUIDS=y CONFIG_SPL_PARTITION_UUIDS=y CONFIG_LIB_UUID=y

I am wondering if I'm missing something somewhere in my defconfig. Does anyone have any suggestions?

I verified this appears to do the same on omap3_logic (dm3730)

OMAP Logic # part list mmc 0

Partition Map for MMC device 0 -- Partition Type: DOS

Part Start Sector Num Sectors UUID Type 1 63 401562 00000000-01 0c Boot OMAP Logic #

Thank you,

adam