Following the instructions from the download page for the Lime2-eMMC we tried to apply the commands listed, but it looks that something is garbled here
apt-get update
apt-get upgrade
source /etc/armbian-release
dpkg -r linux-u-boot-lime2-${BRANCH} linux-$(lsb_release -cs)-root-${BRANCH}-lime2
apt-get -y install linux-u-boot-lime2-emmc-${BRANCH} linux-$(lsb_release -cs)-root-${BRANCH}-lime2-emmc
ln -fs bin/lime2-emmc.bin /boot/script.bin
echo lime2-emmc > /etc/hostname
reboot
source is not a command AFAIK and if I use it as an apt-get option the system complaints about missing entries in sources.
What is the correct way?