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Is a Virtualization Software that can runs on MacOS, Windows, Linux clients and/or hosts.


On Windows

  • Change Host-Only adapter name → Windows

On Linux

  • Install VirtualBox Guests Addons manually on Ubuntu
    1. sudo apt install gcc make perl
    2. Install Guest addition
      • Either autorun CD-ROM
      • Or open Terminal and run sudo ./
    3. Disable animations gsettings set org.gnome.desktop.interface enable-animations false
  • Allow user to access Shared Folder:
    • Fix permissions with shared folders on Linux
      • Message in Ubuntu: This location could not be displayed. and You do not have the permissions necessary to view the contents of "sf_Manager".
    • Solution: sudo adduser $USER vboxsf and reboot


  • Compact a virtual hard drive .vdi
    1. Defragment the disk
    2. In the guest:
      • Linux: dd if=/dev/zero of=/var/tmp/bigemptyfile bs=4096k ; rm /var/tmp/bigemptyfile
      • Windows: sdelete.exe c: -z from Sysinternals
    3. Shutdown
    4. Run VBoxManage.exe modifymedium --compact c:\path\to\thedisk.vdi