build/config/templates/nfs-boot.cmd.template at 4ff6016b03d9033ebf3758ba54a1b9520f250c31 · armbian/build · GitHub

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## set this to NFS root path (ip:path)
## or else provide dhcp option 17 (root-path)

#setenv nfs_root 192.168.0.2:/mnt/nfsroot

# for DHCP
setenv net_setup "ip=dhcp"

# for static configuration see documentation
# https://www.kernel.org/doc/Documentation/admin-guide/nfs/nfsroot.rst
# setenv net_setup "ip=<client-ip>:<server-ip>:<gw-ip>:<netmask>:<hostname>:<device>:<autoconf>:<dns0-ip>:<dns1-ip>"

# No hardcoded `console=`: kernels resolve the console from the DTB's
# /chosen/stdout-path. Hardcoding a baud rate here breaks boards whose
# UART runs at non-115200 speeds (e.g. helios64 @ 1500000).
setenv bootargs "root=/dev/nfs ${net_setup} rw rootwait earlycon panic=10 loglevel=6"

if test -n "${nfs_root}"; then
	setenv bootargs "${bootargs} nfsroot=${nfs_root}"
fi

# Load kernel + DTB + initrd from the active distro boot partition.
# devtype/devnum/distro_bootpart are set by U-Boot's bootflow scanner
# before this script runs.
setenv boot_dev "${devtype} ${devnum}:${distro_bootpart}"

load ${boot_dev} ${fdt_addr_r} dtb/${fdtfile}
load ${boot_dev} ${ramdisk_addr_r} uInitrd || setenv ramdisk_addr_r "-"

# Prefer arm64 flat Image (booti); fall back to compressed zImage (bootz).
if load ${boot_dev} ${kernel_addr_r} Image; then
	booti ${kernel_addr_r} ${ramdisk_addr_r} ${fdt_addr_r}
else
	load ${boot_dev} ${kernel_addr_r} zImage
	setenv fdt_high ffffffff
	bootz ${kernel_addr_r} ${ramdisk_addr_r} ${fdt_addr_r}
fi

# Recompile with:
# mkimage -C none -A arm -T script -d boot.cmd boot.scr