If wifi drivers are not installed during 1st boot up, it's likely that graphics and wifi drivers are not installed when you start your pc for the 1st time. First attach your pc with internet through ethernet cable in order to access internet during package installation. Do the following:
sudo apt install net-tools
ifconfig
It will show something like this:
arghya@arghya-Pulse-GL66-12UEK:~$ ifconfig
enp5s0: flags=4163<UP,BROADCAST,RUNNING,MULTICAST> mtu 1500
| @author LongCat (Pichaya Morimoto) | |
| -- Unlock bootloader | |
| Note: this will unlock bootloader & perform factory reset. | |
| 1. Prepare the device | |
| Remove all screen unlock methods. | |
| Enable Developer Mode: Settings > About phone > tap seven times on "Build number" | |
| Enable USB Debgging: Settings > Developer options > Select "USB debugging" | |
| Enable OEM Unlock: Settings > Developer options > Select "OEM unlocking" |
| Assuming the username of the Ubuntu user is "ubuntu". | |
| Preparation | |
| ----------- | |
| ``` | |
| sudo apt-get update | |
| sudo apt-get upgrade | |
| sudo apt-get install mysql-server libmysqlclient-dev |