# Pastebin oezAOpl6
debian@BeagleBone:~$ cat /boot/firmware/extlinux/extlinux.conf 
label Linux eMMC
    kernel /Image
    append console=ttyS2,115200n8 earlycon=ns16550a,mmio32,0x02800000 root=/dev/mmcblk0p2 ro rootfstype=ext4 rootwait net.ifnames=0
    fdtdir /
    fdtoverlays /overlays/J721E-PRU-UIO-00A0.dtbo
    initrd /initrd.img