Correct setup for u-boot and fstab ? Device not booting

[as365n4]

I am trying to boot from eMMC and no I did not flash uBoot into SPI and everything is on the same card, but divided in 3 partitions (boot=ext2 / root=ext4 / swap)

My extlinux.conf is as below

Code:

TIMEOUT 2
PROMPT 1
DEFAULT debian

LABEL debian
MENU LABEL Debian
KERNEL /vmlinuz
INITRD /initrd.img
DEVICETREEDIR /dtbs
APPEND console=tty1 root=LABEL=root rw rootwait

I have not tried to boot from SD-Card, will do next week when I have more time on hand.