As of April 2021, the supported driver version on Genesis Cloud for the Nvidia GTX 1080Ti is 430.50, while Nvidia RTX 3080/3090 is using driver version 460.
If you have created an instance, using the Nvidia GTX 1080Ti and installed the driver, it will not work out of the box with an Nvidia RTX 3080/3090.
In order to make use of the new driver in an existing snapshot, you simply follow the standard workflow to create a new instance from an instance snapshot (see How to take and reuse Instance Snapshots) and select an Nvidia RTX 3080/3090 instead.
Upon logging into the instance, you can upgrade the driver by running the following commands:
sudo apt-get update sudo apt-get install -y nvidia-driver-460-server nvidia-utils-460-server
This will update your environment to use the new driver, compatible with the Nvidia RTX 3080/3090 cards.
Please be sure to have a backup of all your relevant data before executing those commands. The execution of those command will modify your system and might - in rare cases - lead to unexpected data loss (e.g. due to the removal of incompatible packages)
While it is possible to also use the new driver with the Nvidia GTX 1080Ti, it is not supported by Genesis Cloud.