Latest kernel will not boot

[badcloud]

Device shuts off after running '${EXT_CARD}p1/boot.scr'

Last u-boot message is "mmc0 is current device"

cat /etc/bootmenu.d/30-Debian_GNU_Linux-jessie-armhf-4.7.0-rc4+.item
ITEM_NAME="Debian GNU/Linux jessie armhf 4.7.0-rc4+"
ITEM_DEVICE="${EXT_CARD}p1"
ITEM_FSTYPE="ext4"
ITEM_KERNEL="/boot/uImage-4.7.0-rc4+"
ITEM_INITRD="/boot/uInitrd-4.7.0-rc4+"
ITEM_CMDLINE="root=/dev/mmcblk0p1 rootwait ro console=tty0 vram=12M ubi.mtd=5"

cat /mnt/boot.scr
setenv mmcnum 0
setenv mmcpart 1
setenv mmctype ext4
setenv bootargs root=/dev/mmcblk0p1 rootwait ro console=tty0 vram=12M ubi.mtd=5
setenv setup_omap_atag
setenv mmckernfile /boot/uImage-4.7.0-rc4+
setenv mmcinitrdfile /boot/uInitrd-4.7.0-rc4+
setenv mmcscriptfile
run trymmckerninitrdboot