Summary

The company wants to use the new equipment - the program-controlled computer, because they are forced to install ubuntu-server, so they have to configure a lot of things themselves.

Step 1: Modifying Software Sources

Get the first step of the program control computer, modify the software source. When you open the system, you find that the card is in a start. Directive, and then will say how to solve the problem of boot card owner.

Modify the software source as follows:

#Backup Software Source
sudo cp /etc/apt/sources.list /etc/apt/sources.list.back
#Modify the software source
sudo nano /etc/apt/sources.list 

Remark the original text and add the following

#Comment out the original content and add the following content
deb http://mirrors.aliyun.com/ubuntu/ bionic main restricted universe multiverse
deb-src http://mirrors.aliyun.com/ubuntu/ bionic main restricted universe multiverse
deb http://mirrors.aliyun.com/ubuntu/ bionic-security main restricted universe multiverse
deb-src http://mirrors.aliyun.com/ubuntu/ bionic-security main restricted universe multiverse
deb http://mirrors.aliyun.com/ubuntu/ bionic-updates main restricted universe multiverse
deb-src http://mirrors.aliyun.com/ubuntu/ bionic-updates main restricted universe multiverse
deb http://mirrors.aliyun.com/ubuntu/ bionic-backports main restricted universe multiverse
deb-src http://mirrors.aliyun.com/ubuntu/ bionic-backports main restricted universe multiverse
deb http://mirrors.aliyun.com/ubuntu/ bionic-proposed main restricted universe multiverse
deb-src http://mirrors.aliyun.com/ubuntu/ bionic-proposed main restricted universe multiverse

Then Ctrl + X Y saves
Start formal work after you've finished.

Step 2: Solving the Problem of Boot Card

Source: https://blog.csdn.net/baidu_19452317/article/details/99297399
In short, add a timeout setting.
After entering the system, open the terminal and enter the following command.

cd /etc/systemd/system/network-online.target.wants/

Look at the folder. There are three files under the folder, systemd-networkd-wait-online.service, networking.service and NetworkManager-wait-online.service.

Modify the system d-networkd-wait-online.service file by adding a sentence under [Service],

TimeoutStartSec=2sec

If there are other network connection problems, modify the Timeout time of the other two files.

Step 3: Set up root account

I found that the new system had no root account and had to be set up by myself.

sudo passwd root

After entering the instructions, first enter the current account password, and then enter the root password you want to set.

Step 4: configuring network systems (wifi and static ip)

The program-controlled computer has two network ports and can also use wifi connection.
So here we need to configure wifi, and the laptop in the same network segment, after convenient connection.
This is more complicated.

Installation driver

Reference article: https://www.cnblogs.com/floud/p/10545924.html
Reference article: https://www.cnblogs.com/free-ys/p/10162388.html

# Software source updates and installation drivers
sudo apt update
sudo apt upgrade
sudo apt-get install wpasupplicant
sudo apt-get install network-manager
sudo apt install broadcom-sta-dkms
#View the wireless network card model and execute the following commands
lspci | grep Wireless
#1 default display physical network card ens33, no wireless network card
ifconfig
#2 Get the interface name, Ubuntu is generally wls33
iw dev
#3 View the connection status and prompt Not Connected
iw dev wls33 link
#4 Check whether the wireless network card is block (Wireless LAN)
rfkill list all
#5 Soft blocked and Hard blocked need to be set to no
#If Soft is shown as yes, run the following command
ip link set wls33 up
//perhaps
ifconfig wls33 up
#If Hard is yes, look for the wifi button on the laptop, find it and press it

#6 Verify whether wls33 interface was successfully opened
ip link show wls33
#UP instructions in <BROADCAST, MULTICAST, UP, LOWER_UP> have been opened

Configuring Wireless Network Card with netplan

Beginning with ubuntu18, network configurations have been configured using netplan (different from previous versions), and it feels good to see the whole thing.
Reference: https://netplan.io/examples
To configure netplan, modify the file with the extension / etc/netplan / li. yaml, or create a file (for example, / etc/netplan/config.yaml)
After configuring the file, run sudo netplan apply. This command parses the configuration and applies it to the system. The configuration / etc/netplan / written to disk will remain unchanged between two restarts.
After configuring the network, restart it
Configure wireless network card ip

 sudo nano  /etc/netplan/50-cloud-init.yaml

Modify the file. Note that all colons are preceded by spaces.

network:
   renderer: NetworkManager
   ethernets:
       enp2s0:
           addresses:
           - 192.168.2.9/24
           dhcp4: false
           gateway4: 192.168.2.1
           nameservers:
               addresses: []
               search: []
   wifis:
       wlp3s0:
           addresses:
           - 192.168.2.10/24
           dhcp4: false
           gateway4: 192.168.2.1
           nameservers:
               addresses: []
               search: []
           access-points:
               "Name of wireless network":
                       password: 'Wireless Network Password'
   version: 2

Make the configured system an iso image

Reference: https://blog.csdn.net/qq_34638161/article/details/81282354