Effective Range

Bootstrapping new target

• install image on SD card, and boot up RPi device
• create a new directory under mkdir TARGET/<target name>
• use ./scripts/collect_info <hostname> > TARGET/<target name>/target to collect runtime version information
• the TARGET/<target name>/target.extra can contain extra environment variables that are sourced by the cross tools build scripts
• retrieve kernel config (see section below)
• add any potential patches that needed to be applied when building the cross compiler toolchain

Retrieving Kernel Config from a Running Device

To retrieve the kernel configuration from a running device, you can use the following command:

ssh <device> "cat /boot/config-\$(uname -r) " > TARGET/<target name>/.config

This command will extract the kernel configuration and save it locally.

if this file is not present then the following might work ssh "sudo modprobe configs && zcat /proc/config.gz" > TARGET//.config