Virtualbox Guest Additions on CentOS 7 Notes

Virtual Machines

Install Dependencies

# yum install epel-release
# yum clean all
# yum update -y
# yum install -y dkms kernel-devel bzip2

Install Guest Additions

Within VirtualBox select "Devices" menu then "Insert Guest Additions CD Image..."

# mkdir /media/cdrom
# mount /dev/sr0 /media/cdrom
# cd /media/cdrom
# ./VBoxLinuxAdditions.run

Results

# systemctl status vboxadd.service
# systemctl status vboxadd-service.service
# systemctl status vboxadd-x11.service

If not using X11, ignore errors. Probably save to systemctl disable vbox-x11.service.

cleanup

# cd ~
# umount /media/cdrom
# rmdir /media/cdrom