This is the external Buildroot repository used to build system images and updates for the MynaPlayer project. BUILDING -------- Building MynaPlayer is a easy process, though it requires decent hardware. First install Buildroot's required dependencies. See: [The buildroot user manual, chapter 2: System requirements](https://buildroot.org/downloads/manual/manual.html#requirement) Then set up the required source code: ``` mkdir MYNA && cd MYNA git clone -b v3.0.7 'https://github.com/OpenVPN/easy-rsa' git clone -b 2020.05.x 'https://git.buildroot.net/buildroot' git clone 'https://git.lumina-sensum.com/git/LuminaSensum/buildroot-MynaPlayer.git' export BR2_EXTERNAL="$PWD/buildroot-MynaPlayer" cd buildroot git am ../buildroot-MynaPlayer/buildroot-patches/*.patch cd .. ``` Create keys for RAUC updates: ``` cd easy-rsa sed -i "s/extendedKeyUsage/#extendedKeyUsage/g" easyrsa3/x509-types/code-signing ./easyrsa3/easyrsa init-pki ./easyrsa3/easyrsa build-ca ./easyrsa3/easyrsa gen-req rauc ./easyrsa3/easyrsa sign-req code-signing rauc cd .. cat >buildroot-MynaPlayer/scripts/certs.sh <<EOF #!/bin/sh RAUC_CERTIFICATE_AUTHORITY="$PWD/easy-rsa/pki/ca.crt" RAUC_PRIVATE_KEY="$PWD/easy-rsa/pki/private/rauc.key" RAUC_PUBLIC_KEY="$PWD/easy-rsa/pki/issued/rauc.crt" EOF ``` Build the image: ``` cd buildroot make O=output_rootfs myna_player_odyssey_defconfig make O=output_rootfs -j8 cd .. ``` Copy RAUC bundles and keys to a server (www.jookia.org in this example): ``` ls buildroot/output_rootfs/images/ # Find the file ending in *.raucb # You can also just flash MynaPlayer.img using dd but it takes a long time mv buildroot/output_rootfs/images/bundle-MynaPlayer-2020-08-06.fe2ca3ce-be36-4f33-94d4-e295cd0518be.raucb /var/www/www.jookia.org/ cp $PWD/easy-rsa/pki/ca.crt /var/www/www.jookia.org/ chmod a+r /var/www/www.jookia.org/ca.crt ``` Install the update on the device from the server: ``` wget 'https://www.jookia.org/ca.crt' cp /etc/rauc/keyring.pem{,.bak} mv ca.crt /etc/rauc/keyring.pem rauc install https://www.jookia.org/bundle-MynaPlayer-2020-08-06.fe2ca3ce-be36-4f33-94d4-e295cd0518be.raucb mv /etc/rauc/keyring.pem{.bak,} reboot ``` Future updates won't need to copy the keyring, a single 'rauc install' invocation should download and install the image without trouble. You should now be running a system you've just built (check the kernel build date): ``` uname -a # Linux MynaPlayer 5.8.0 #3 SMP PREEMPT Thu Aug 6 03:21:30 EDT 2020 armv7l GNU/Linux ```