VirtualBox 在 ubuntu vm上安裝VboxGuestAdditions

透過Termial安裝

1. 將iso檔掛載到VM上.
2. 執行下列指令
   mount /dev/cdrom /mnt
   cd /mnt
   sudo ./VBoxLinuxAdditions.run
   reboot

ref : https://askubuntu.com/questions/22743/how-do-i-install-guest-additions-in-a-virtualbox-vm?utm_medium=organic&utm_source=google_rich_qa&utm_campaign=google_rich_qa