安装Running a Ubuntu 20.04 VM in Virtualbox

1. Download Ubuntu 20.04 Download
2. Launch Virtualbox
3. Create a New VM by selecting Machine > New

   Name: Ubuntu 20.04
   Machine Folder: C:\VMs
   Type: Linux
   Version: Ubuntu (64-bit)
   Memory Size: 4096 MB
   Hard disk: Create a virtual hard disk now

4. Click Create
5. On the Create Virtual Hard Disk dialog

   Name the virtual disk image Ubuntu 20.04.vdi
   File size: 10 GB
   Hard disk file type: VDI
   Storage on physical hard disk: Dynamically Allocated

6. Click Create
7. Select the VM and Click Settings
8. Select System > Processor
9. Give the VM at least 2 processors
10. Select Display
11. Slide the Video Memory to 128 MB
12. Select Network
13. Set the attached to dropdown to Bridged Adapter
14. Select Storage
15. Click on the CD-ROM drive
16. Select the disc dropdown to the right > Choose a virtual optical disc file...
17. Browse to and select the downloaded Ubuntu 20.04 .iso file
18. Click OK
19. Make sure the Ubuntu 20.04 VM is selected and click Start > Normal
20. Press Ctrl+C to cancel the disk check
21. When the install dialog displays click Install Ubuntu
22. Select a keyboard layout > Click Continue
23. Uncheck Download updates while installing Ubuntu > Click Continue
24. Click Install Now
25. Click Continue to write the changes to the disk
26. Select a Region > Click continue
27. Enter a name, computer name, username and password > Click Continue
28. Wait while Ubuntu copies files and installs
29. When prompted to Restart Now, Select Devices > Optical Drives > Remove disk from virtual drive
30. Click Restart Now to complete the installation, the VM will reboot
31. Login with the username and password created earlier in the process
32. Select Skip > Next > Select No, Don't send system info > Next > Next > Done
33. Welcome to Ubuntu 20.04

Optional Steps

1. Click the Applications button > Search "terminal" > Click Terminal
2. Run the following commands to install updates
   sudo apt-get update
   sudo apt-get upgrade
   sudo apt-get clean
3. Select Devices > Insert Guest Additions CD image...
4. If the installation autoruns, select Run
5. Open the Files application > Select the Guest Additions Disc > Right click in the white space > Open terminal here
6. In the Terminal window run the following commands
   sudo sh ./VBoxLinuxAdditions.run
   sudo reboot
7. The VM will reboot
8. Upon rebooting, you can now full screen the VM and the internal resolution will automatically change to match the window size
9. Log back into Ubuntu