Start 

By now, the whole build system is automated. This is just for historical documentary.

First save the existing packages 

• SSH into the router

# this is my own script but you can get the installed packages with some hacking
# this is good if you want your own firmware
# that builds all packages you now have 
opkg list-installed > opkg-list-installed.txt

Make the raw firmware 

By now, it is using faster with the helpers above, but below you can do it by hand to change everything easy.

Build All packages 

You start with:

./build-docker

Make sure you know there are already build docker images, so you don't really need it.

The same, if you have a server instead cdn.corifeus.com, you can change it at wish.

There is a newer mwlwifi faster, newer package, they are in openwrt-insomnia/patches, you can copy them safely into the /build/source.

• Target System

  • Marvell Armada EBU Armada => Linksys WRT Multiple
  • D-Link DIR-860l B1 => MediaTek Ralink MIPS
  • Broadcom BCM27xx => RPI 3

• Subtarget

  • Marvell Armada 37x/38x/XP => Linksys WRT Multiple
  • D-Link DIR-860l B1 => MT7621
  • BCM2710 64bit based boards => RPI 3

• Target Profile

  • Multiple devices => Linksys WRT Multiple
  • D-Link DIR-860l B1 => MT7621
  • Raspberrry Pi 3B => RPI 3

• Target Devices (for now is only Linksys WRT Multiple)

  • Enable all profiles by default
  • THIS IS PROBABLY IMPORTANT -> Use a per-device root filesystem that add profile packages

• Global build settings

  • Select all target specific packages by default
  • THIS MIGHT NOT NEEDED -> Select all kernel module packages by default
  • Select all userspace packages by default
  • EXPERIMENTAL, not using it anymore -> Set build defaults for automatic builds
  • EXPERIMENTAL, not using it anymore -> UNCHECK Collect kernel debug information
  • Kernel build options
    • Compile the kernel with MIPS FPU Emulator
      • ONLY For D-Link DIR860L B1

• Advanced configuration options

  • Enable log files during build process

• Build the OpenWrt Image Build

  • Include package repositories

• Image configuration - ENTER

  • Version configuration options - ENTER
    • Release version code
      • insomnia
  • Seperate feed repositories
    • select

• Languages

  • Node.js
    • node
      • Configuration
        • Version Selection
          • 12.x
    • SELECT ALL

• Libraries

  • libavahi-compat-libdnssd (*)
    • ONLY FOR R-PI3

• Network

  • Web Servers/Proxies
    • apache
      • Configuration
        • Enable HTTP2
    • nginx
      • select all CONFIGURATION
        • check all

• Utililties

  • mc --->
    • Configuration
      • enable internal editor UNCHECK

• Exit

• YES

Copy the .config file to {router-name}/source/.config

In an another terminal you can increase the buidling 

# for me using multiple cores the main build I always get errors, so I always use just 1 core
# I do this instead
# find out the PID
watch 'ps -aux | grep "make\|m4\|cc1"'
# end just to do this
sudo renice -20 -u 1000
# for docker I also added renice, I checked out the dockerd pid and I added in
ps -aux | grep dockerd
# you get the PID
sudo renice -20 10728 # this was the dockerd PID