Installation woes… let’s fix that. The Debian wiki seems to be a bit out of date on this when it comes to Debian 10, and if you don’t have contrib’s enabled for whatever the reason may be.
Edit /etc/apt/sources.list
Add in the following two lines at the end…
deb http://deb.debian.org/debian buster-backports main contrib deb-src http://deb.debian.org/debian buster-backports main contrib
Save and close sources.list
Run “apt update
“
apt install linux-headers-`uname -r` apt install -t buster-backports zfsutils-linux
You should get a notice that ZFS has legality/infringe issues. Slap that OK button and continue.
ZFS is now installed and good to go after apt does its thing.
Head over to https://wiki.debian.org/ZFS#Creating_the_Pool to read up on pools.