How to enable exFAT for Ubuntu 20.04
Solution 1:
I had the same issue after having the fuse drivers installed in an earlier version then upgrading to 20.04 and removing the fuse drivers. cat /proc/filesystems | grep fat
does not show exfat.
I re-installed the kernel module included with 20.04 using:
sudo modprobe -v exfat
cat /proc/filesystems | grep fat
now shows exfat.
Then to make it survive a reboot, I added exfat to /etc/modules-load.d/modules.conf
Solution 2:
Here's something you can try. Since the GNU/Linux 5.4.0-1008-raspi aarch64
kernel doesn't seem to have the support for exFAT built in, you can add it. From https://www.techrepublic.com/article/try-out-this-new-linux-exfat-kernel-module-for-improved-performance/ you can follow the steps to download and install the exFAT support for the kernel.
Install git
if it is not installed:
sudo apt install git
You may also want the build-essential package:
sudo apt install build-essential
Next, download the exfat-linux:
git clone https://github.com/arter97/exfat-linux
Enter the newly created folder which should be cd exfat-linux
Then run the following to install the kernel module and make it active:
make
sudo make install
sudo modprobe exfat
Now when you run cat /proc/filesystems
you should see exfat
at the bottom of the list.
Solution 3:
The new exFAT kernel driver was in Staging in 5.4 and fully released in 5.7.
See: https://www.omgubuntu.co.uk/2019/11/linux-5-4-kernel-release-features https://www.omgubuntu.co.uk/2020/06/linux-5-7-kernel-features