Sorry about the brief message, it was late in my timezone, and I am only having weekends for this.
So, here we go:
debian@arm:~$ uname -a
Linux arm 3.8.13-bone74 #1 SMP Sun Sep 6 17:02:55 CEST 2015 armv7l GNU/Linux
root@arm:/home/debian# cat /mnt/boot/uEnv.txt
##These are needed to be compliant with Angstrom’s 2013.06.20 u-boot.
loadaddr=0x82000000
fdtaddr=0x88000000
rdaddr=0x88080000
initrd_high=0xffffffff
fdt_high=0xffffffff
##These are needed to be compliant with Debian 2014-05-14 u-boot.
uname_r=3.8.13-bone74
optargs=capemgr.disable_partno=BB-BONELT-HDMI,BB-BONELT-HDMIN capemgr.enable_partno=BB-VIEW-LCD4
loadximage=load mmc 0:2 ${loadaddr} /boot/vmlinuz-${uname_r}
loadxfdt=load mmc 0:2 ${fdtaddr} /boot/dtbs/${uname_r}/${fdtfile}
loadxrd=load mmc 0:2 ${rdaddr} /boot/initrd.img-${uname_r}; setenv rdsize ${filesize}
loaduEnvtxt=load mmc 0:2 ${loadaddr} /boot/uEnv.txt ; env import -t ${loadaddr} ${filesize};
check_dtb=if test -n ${dtb}; then setenv fdtfile ${dtb};fi;
loadall=run loaduEnvtxt; run check_dtb; run loadximage; run loadxrd; run loadxfdt;
mmcargs=setenv bootargs console=tty0 console=${console} ${optargs} ${cape_disable} ${cape_enable} root=/dev/mmcblk0p2 rootfstype=${mmcrootfstype} ${cmdline}
uenvcmd=run loadall; run mmcargs; bootz ${loadaddr} ${rdaddr}:${rdsize} ${fdtaddr};
Rootfs:
root@arm:/home/debian# find /boot/ -type d -print
/boot/
/boot/uboot
/boot/dtbs
/boot/dtbs/3.8.13-bone74
root@arm:/home/debian# ls -ltr /boot/dtbs/3.8.13-bone74/
total 376
-rw-r–r-- 1 root root 14994 Sep 6 15:06 omap5-evm.dtb
-rw-r–r-- 1 root root 15703 Sep 6 15:06 omap4-var-som.dtb
-rw-r–r-- 1 root root 21727 Sep 6 15:06 omap4-sdp.dtb
-rw-r–r-- 1 root root 18896 Sep 6 15:06 omap4-panda-es.dtb
-rw-r–r-- 1 root root 18940 Sep 6 15:06 omap4-panda.dtb
-rw-r–r-- 1 root root 18940 Sep 6 15:06 omap4-panda-a4.dtb
-rw-r–r-- 1 root root 11555 Sep 6 15:06 omap3-tobi.dtb
-rw-r–r-- 1 root root 11402 Sep 6 15:06 omap3-evm.dtb
-rw-r–r-- 1 root root 12266 Sep 6 15:06 omap3-beagle-xm.dtb
-rw-r–r-- 1 root root 11591 Sep 6 15:06 omap3-beagle.dtb
-rw-r–r-- 1 root root 4824 Sep 6 15:06 omap2420-h4.dtb
-rw-r–r-- 1 root root 26097 Sep 6 15:06 arduino-tre.dtb
-rw-r–r-- 1 root root 23548 Sep 6 15:06 am335x-tester.dtb
-rw-r–r-- 1 root root 22592 Sep 6 15:06 am335x-evmsk.dtb
-rw-r–r-- 1 root root 23164 Sep 6 15:06 am335x-evm.dtb
-rw-r–r-- 1 root root 26118 Sep 6 15:06 am335x-bonegreen.dtb
-rw-r–r-- 1 root root 25520 Sep 6 15:06 am335x-bone.dtb
-rw-r–r-- 1 root root 23798 Sep 9 20:24 am335x-boneblack-lcd4.dtb
-rw-r–r-- 1 root root 23798 Sep 9 20:30 am335x-boneblack.dtb
Boot:
root@arm:/home/debian# ls -ltr /boot/
total 10856
drwxr-xr-x 2 root root 4096 Jun 9 13:36 uboot
-rwxr-xr-x 1 root root 5551384 Sep 6 20:57 3.8.13-bone74.zImage
-rwxr-xr-x 1 root root 5551384 Sep 6 20:58 vmlinuz-3.8.13-bone74
drwxr-xr-x 3 root root 4096 Sep 6 20:59 dtbs
root@arm:/home/debian# ls -ltr /boot/uboot/
total 0
Any ideas what to check/why/how drivers are missing?