This seems to have gone well, let’s check if the necessary kernel modules are present: ~]# lsmod | egrep -i 'Module|vbox' VirtualBox Guest Additions: Building the modules for kernel VirtualBox Guest Additions: /sbin/rcvboxadd quicksetup all VirtualBox Guest Additions: /sbin/rcvboxadd quicksetup VirtualBox Guest Additions: To build modules for other installed kernels, run VirtualBox Guest Additions: Building the VirtualBox Guest Additions kernel Uncompressing VirtualBox 6.1.10 Guest Additions for Linux. Mount: /mnt: WARNING: device write-protected, mounted ~]# /mnt/n The next step is to mount the Guest Additions (virtual) CD and run the installer: ~]# mount /dev/sr0 /mnt Last metadata expiration check: 0:22:15 ago on Fri 14:11:17 BST. ~]# dnf install perl make bzip2 gzip unzip kernel-uek-devel-$(uname -r) tar Right after the system comes back online after the reboot, you might notice a new kernel: 5.4.17-2011.3.2.1.el8uek.x86_64 is now the default, previously it was 5.4.17-2011.1.2.el8.īefore you can install the Guest Additions a few additional packages are required. I hope you forgive me for not sharing screen output from the system upgrade, I thought it would have been boring … After this completed, it’s time for a reboot and the installation of the Guest Additions. I am going to stick with UEK 6 in my lab, instructions are different from using RHCK.Īs usual I run a “dnf update -y” (in a tmux session of course) to upgrade the software release to the latest and greatest software.

There’s nothing wrong with that of course, it’s just an observation.

I believe this change came with Oracle Linux (OL) 8.2 and I seem to remember OL 8.1 used the Red Hat Compatible Kernel (RHCK) by default. The VM was installed using the “minimal-environment” group and booted into UEK 6. Virtualbox 6.1.10 for Linux (my host is running Ubuntu 20.04 LTS).Maybe it’ll save you a few minutes I know it will save me a lot of time )įor this post I used the latest versions at the time of writing: Since I can never remember how to install Virtualbox Guest Additions I thought I’d write it down.

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