dmitri don first of all thanks so much sharing the third command this fixed my ZFS in OMV5!!
sudo armbian-config
Go to Software and install headers.
nano /etc/apt/sources.list
#add these lines to your file.
#----------------------------------------------------------------------------------------------------
deb http://deb.debian.org/debian buster main contrib non-free
#deb-src http://deb.debian.org/debian buster main contrib non-free
#1deb http://deb.debian.org/debian buster-updates main contrib non-free
#deb-src http://deb.debian.org/debian buster-updates main contrib non-free
#2deb http://deb.debian.org/debian buster-backports main contrib non-free
#deb-src http://deb.debian.org/debian buster-backports main contrib non-free
#3deb http://security.debian.org/ buster/updates main contrib non-free
#deb-src http://security.debian.org/ buster/updates main contrib non-free
#----------------------------------------------------------------------------------------------------
#save
//Install DKMS v2.0.1
sudo apt install zfs-dkms zfsutils-linux zfs-auto-snapshot
//unhash #1,#2,#3 and save
apt update && apt upgrade -y && apt dist-upgrade && apt install linux-headers-current-rockchip64
#+++++++++++++++++++++++++++++++++++++++++++++++++++++
//update headers manually - not necessary if above procedure worked.
#https://imola.armbian.com/apt/pool/main/l/
wget https://imola.armbian.com/apt/pool/main/l/linux-5.10.35-rockchip64/linux-dtb-current-rockchip64_21.05.1_arm64.deb
wget https://imola.armbian.com/apt/pool/main/l/linux-5.10.35-rockchip64/linux-headers-current-rockchip64_21.05.1_arm64.deb
wget https://imola.armbian.com/apt/pool/main/l/linux-5.10.35-rockchip64/linux-image-current-rockchip64_21.05.1_arm64.deb
dpkg -i linux-dtb-current-rockchip64_21.05.1_arm64.deb
dpkg -i linux-headers-current-rockchip64_21.05.1_arm64.deb
dpkg -i linux-image-current-rockchip64_21.05.1_arm64.deb
sudo apt install zfs-dkms zfsutils-linux zfs-auto-snapshot
#+++++++++++++++++++++++++++++++++++++++++++++++++++++
//install omv
armbian-config -> Software -> Softy -> mouseclick omv to get * -> click install
#+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
//optional not necessary if above went ok, this includes the extras now.
//and after install also the extras as per the video above. https://wiki.omv-extras.org/
//commands:
wget -O - https://github.com/OpenMediaVault-Plugin-Developers/packages/raw/master/install | bash
#+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
connect to OMV localhost:80, change ssh / omv port to another port if you want for your reversed http tunnel in putty. (when you work remote)
go to update management -> check -> update to latest version (5.6.7-1 usul) kernel 5.10.35-rockchip64
go to OMV-extras -> tick extra repos and back ports to green -> save
updates -> run update, run omv-update, run upgrade, run dist-upgrade, run apt clean
go to plugins -> scroll down and install openmediavault-zfs 5.0.6
Install all other plugins you need. (install luks after openmediavault-zfs, also encryptionspeed is 3,5 times faster than in zfs itself)
root@helios64:~# sudo modprobe zfs
root@helios64:~# lsmod | grep zfs
zfs 3690496 6
zunicode 331776 1 zfs
zzstd 389120 1 zfs
zlua 151552 1 zfs
zcommon 90112 1 zfs
znvpair 98304 2 zfs,zcommon
zavl 20480 1 zfs
icp 253952 1 zfs
spl 110592 6 zfs,icp,zzstd,znvpair,zcommon,zavl
root@helios64:~#
root@helios64:~# zfs version
zfs-2.0.3-1~bpo10+1
zfs-kmod-2.0.1-1
root@helios64:~#
I am not sure if you want OMV with it. My guess that your problem is kernel header related.
Please let me know if this is a help to you
Kr,
Stront
