ubuntu@arm:/boot/uboot_old$ cat uEnv.txt
kernel_file=zImage
initrd_file=initrd.img
initrd_high=0xffffffff
fdt_high=0xffffffff

##Video: [ls /sys/class/drm/]
##Docs: https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/tree/Documentation/fb/modedb.txt
##Uncomment to override:
#kms_force_mode=video=HDMI-A-1:1024x768@60e

##Enable systemd
#systemd=quiet init=/lib/systemd/systemd

##BeagleBone Cape Overrides
##Note: On the BeagleBone Black, there is also an uEnv.txt in the eMMC, so if these changes do not seem to be makeing a difference...

##BeagleBone Black:
##Disable HDMI/eMMC
#optargs=capemgr.disable_partno=BB-BONELT-HDMI,BB-BONELT-HDMIN,BB-BONE-EMMC-2G

console=ttyO0,115200n8

mmcroot=UUID=c024c34d-f4a9-433b-8976-4e158d914251 ro
mmcrootfstype=ext4 rootwait fixrtc

loadkernel=load mmc ${mmcdev}:${mmcpart} 0x80300000 ${kernel_file}
loadinitrd=load mmc ${mmcdev}:${mmcpart} 0x81600000 ${initrd_file}; setenv initrd_size ${filesize}
loadfdt=load mmc ${mmcdev}:${mmcpart} 0x815f0000 /dtbs/${fdtfile}

boot_ftd=run loadkernel; run loadinitrd; run loadfdt

device_args=run expansion_args; run mmcargs
mmcargs=setenv bootargs console=${console} ${optargs} ${kms_force_mode} root=${mmcroot} rootfstype=${mmcrootfstype} ${expansion} ${systemd}

expansion_args=setenv expansion ip=${ip_method}
uenvcmd=run boot_ftd; run device_args; bootz 0x80300000 0x81600000:${initrd_size} 0x815f0000
#
ubuntu@arm:/boot/uboot_old$