These steps are needed before attempting asterisk installation:
Now log in as the super user (root) and stay in the root home folder (/root/). Everything we are doing here is done in bash. I suggest SSHing into it so you can copy and paste commands.
run the following command to stop the Odroid from booting into the GUI and hogging resources:
ln -sf /usr/lib/systemd/system/runlevel3.target /etc/systemd/system/default.target
Run fdisk
fdisk /dev/mmcblk0
Press the following commands:
Upon successful editing of the partition resize the image to the partition:
resize2fs /dev/mmcblk0p3
Check the file system has been expanded:
df -h