setenv rootdev "/dev/mmcblk0p2"

# console=ttyS3 # serial

setenv bootargs "earlyprintk clk_ignore_unused selinux=0 scandelay root=${rootdev} rw console=tty1 rootfstype=ext4 loglevel=1 rootwait ${extraargs}"
setenv os_type linux
fatload mmc 0:1 ${fdt_addr_r} dtb/lemaker_guitar_bbb.dtb
fatload mmc 0:1 ${ramdisk_addr_r} uInitrd
fatload mmc 0:1 ${kernel_addr_r} zImage
bootz ${kernel_addr_r} ${ramdisk_addr_r} ${fdt_addr_r}
# mkimage -C none -A arm -T script -d /boot/boot.cmd /boot/boot.scr