ZFS on Ubuntu error: Failed to load ZFS module stack


If you see the above error in a fresh installation of ZFS on Ubuntu one cause may be that the package build-essentials wasn’t installed prior to installing the ubuntu-zfs package; run:


sudo apt-get purge ubuntu-zfs


then check for the remaining packages with the following:


dpkg –list | grep zfs


…and apt-get purge any remaining relevant ZFS packages.




sudo apt-get install build-essential


…then install ubuntu-zfs as you did originally:


sudo apt-get install ubuntu-zfs


This time it should take properly. This isn’t the only cause of that error but on a fresh install with a new OS it’s one possibility.



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