Changing NVIDIA Driver Branches

To switch driver branches, you must first remove the existing branch before installing the new branch. Currently, removing the nvidia-driver module clears the GRUB_CMDLINE_LINUX setting and this can result in the server failing to boot. Be sure to note the current GRUB_CMDLINE_LINUX setting and restore it after switching driver branches as explained in this section.

Note the existing GRUB_CMDLINE_LINUX setting in the file etc/default/grub.

Example:
```
GRUB_CMDLINE_LINUX=”crashkernel=auto rd.md.uuid=09a9380c:87edd4b6:8f5d9bbc:45e834c7 rhgb quiet rd.driver.blacklist=nouveau”
```
Note

The "rd.driver.blacklist=nouveau" parameter was added when installing the driver and should not be included in the restoration.

Remove and clear the existing stream.

$ sudo dnf module remove --all nvidia-driver
$ sudo dnf module reset nvidia-driver

Follow the instructions in step 5 of the section Installing Required Components to install the new driver branch.
If the nvidia-peer-memory-dkms driver is installed, it must be reinstalled to match the new driver branch.
```
$ sudo dnf reinstall -y nvidia-peer-memory-dkms
```
In the file /etc/default/grub, remove any extra instances of GRUB_CMDLINE_LINUX and manually edit the file to restore the original setting (except for the blacklist parameter).

Example:
```
GRUB_CMDLINE_LINUX="crashkernel=auto rd.md.uuid=09a9380c:87edd4b6:8f5d9bbc:45e834c7 rhgb quiet"
```
Reboot the system.
```
sudo reboot
```