Install output below. Not sure why.
Reading package lists...
Building dependency tree...
Reading state information...
The following extra packages will be installed:
dkms gcc libnvpair1linux libuutil1linux libzfs2linux libzpool2linux
linux-headers-amd64 patch spl-dkms zfs-dkms zfs-zed zfsutils-linux
Suggested packages:
python3-apport menu gcc-multilib manpages-dev autoconf automake libtool flex
bison gdb gcc-doc ed diffutils-doc zfs-initramfs zfs-dracut
Recommended packages:
fakeroot spl
The following NEW packages will be installed:
dkms gcc libnvpair1linux libuutil1linux libzfs2linux libzpool2linux
linux-headers-amd64 openmediavault-zfs patch spl-dkms zfs-dkms zfs-zed
zfsutils-linux
Preconfiguring packages ...
0 upgraded, 13 newly installed, 0 to remove and 0 not upgraded.
Need to get 0 B/2706 kB of archives.
After this operation, 16.7 MB of additional disk space will be used.
Selecting previously unselected package gcc.
(Reading database ... (Reading database ... 5%(Reading database ... 10%(Reading database ... 15%(Reading database ... 20%(Reading database ... 25%(Reading database ... 30%(Reading database ... 35%(Reading database ... 40%(Reading database ... 45%(Reading database ... 50%(Reading database ... 55%(Reading database ... 60%(Reading database ... 65%(Reading database ... 70%(Reading database ... 75%(Reading database ... 80%(Reading database ... 85%(Reading database ... 90%(Reading database ... 95%(Reading database ... 100%(Reading database ... 70806 files and directories currently installed.)
Preparing to unpack .../gcc_4%3a4.9.2-2_amd64.deb ...
Unpacking gcc (4:4.9.2-2) ...
Selecting previously unselected package patch.
Preparing to unpack .../patch_2.7.5-1_amd64.deb ...
Unpacking patch (2.7.5-1) ...
Selecting previously unselected package dkms.
Preparing to unpack .../dkms_2.3-2~bpo8+1_all.deb ...
Unpacking dkms (2.3-2~bpo8+1) ...
Selecting previously unselected package spl-dkms.
Preparing to unpack .../spl-dkms_0.6.5.9-1~bpo8+1_all.deb ...
Unpacking spl-dkms (0.6.5.9-1~bpo8+1) ...
Processing triggers for man-db (2.7.0.2-5) ...
Setting up gcc (4:4.9.2-2) ...
Setting up patch (2.7.5-1) ...
Setting up dkms (2.3-2~bpo8+1) ...
Setting up spl-dkms (0.6.5.9-1~bpo8+1) ...
Loading new spl-0.6.5.9 DKMS files...
Building for 4.9.0-0.bpo.3-amd64 4.9.0-0.bpo.4-amd64
Module build for kernel 4.9.0-0.bpo.3-amd64 was skipped since the
kernel headers for this kernel does not seem to be installed.
Building initial module for 4.9.0-0.bpo.4-amd64
Done.
spl:
Running module version sanity check.
- Original module
- No original module exists within this kernel
- Installation
- Installing to /lib/modules/4.9.0-0.bpo.4-amd64/updates/dkms/
splat.ko:
Running module version sanity check.
- Original module
- No original module exists within this kernel
- Installation
- Installing to /lib/modules/4.9.0-0.bpo.4-amd64/updates/dkms/
depmod...
DKMS: install completed.
Selecting previously unselected package zfs-dkms.
(Reading database ... (Reading database ... 5%(Reading database ... 10%(Reading database ... 15%(Reading database ... 20%(Reading database ... 25%(Reading database ... 30%(Reading database ... 35%(Reading database ... 40%(Reading database ... 45%(Reading database ... 50%(Reading database ... 55%(Reading database ... 60%(Reading database ... 65%(Reading database ... 70%(Reading database ... 75%(Reading database ... 80%(Reading database ... 85%(Reading database ... 90%(Reading database ... 95%(Reading database ... 100%(Reading database ... 71183 files and directories currently installed.)
Preparing to unpack .../zfs-dkms_0.6.5.9-2~bpo8+1_all.deb ...
Unpacking zfs-dkms (0.6.5.9-2~bpo8+1) ...
Selecting previously unselected package libuutil1linux.
Preparing to unpack .../libuutil1linux_0.6.5.9-2~bpo8+1_amd64.deb ...
Unpacking libuutil1linux (0.6.5.9-2~bpo8+1) ...
Selecting previously unselected package libnvpair1linux.
Preparing to unpack .../libnvpair1linux_0.6.5.9-2~bpo8+1_amd64.deb ...
Unpacking libnvpair1linux (0.6.5.9-2~bpo8+1) ...
Selecting previously unselected package libzpool2linux.
Preparing to unpack .../libzpool2linux_0.6.5.9-2~bpo8+1_amd64.deb ...
Unpacking libzpool2linux (0.6.5.9-2~bpo8+1) ...
Selecting previously unselected package libzfs2linux.
Preparing to unpack .../libzfs2linux_0.6.5.9-2~bpo8+1_amd64.deb ...
Unpacking libzfs2linux (0.6.5.9-2~bpo8+1) ...
Selecting previously unselected package linux-headers-amd64.
Preparing to unpack .../linux-headers-amd64_4.9+80+deb9u2~bpo8+1_amd64.deb ...
Unpacking linux-headers-amd64 (4.9+80+deb9u2~bpo8+1) ...
Selecting previously unselected package zfsutils-linux.
Preparing to unpack .../zfsutils-linux_0.6.5.9-2~bpo8+1_amd64.deb ...
Unpacking zfsutils-linux (0.6.5.9-2~bpo8+1) ...
>>> *************** Error ***************
communication failure
<<< *************************************
Selecting previously unselected package zfs-zed.
Preparing to unpack .../zfs-zed_0.6.5.9-2~bpo8+1_amd64.deb ...
Unpacking zfs-zed (0.6.5.9-2~bpo8+1) ...
Selecting previously unselected package openmediavault-zfs.
Preparing to unpack .../openmediavault-zfs_3.0.18_amd64.deb ...
Unpacking openmediavault-zfs (3.0.18) ...
Processing triggers for man-db (2.7.0.2-5) ...
Processing triggers for openmediavault (3.0.91) ...
Restarting engine daemon ...
Setting up zfs-dkms (0.6.5.9-2~bpo8+1) ...
Loading new zfs-0.6.5.9 DKMS files...
Building for 4.9.0-0.bpo.3-amd64 4.9.0-0.bpo.4-amd64
Module build for kernel 4.9.0-0.bpo.3-amd64 was skipped since the
kernel headers for this kernel does not seem to be installed.
Building initial module for 4.9.0-0.bpo.4-amd64
Done.
zavl:
Running module version sanity check.
- Original module
- No original module exists within this kernel
- Installation
- Installing to /lib/modules/4.9.0-0.bpo.4-amd64/updates/dkms/
zcommon.ko:
Running module version sanity check.
- Original module
- No original module exists within this kernel
- Installation
- Installing to /lib/modules/4.9.0-0.bpo.4-amd64/updates/dkms/
znvpair.ko:
Running module version sanity check.
- Original module
- No original module exists within this kernel
- Installation
- Installing to /lib/modules/4.9.0-0.bpo.4-amd64/updates/dkms/
zpios.ko:
Running module version sanity check.
- Original module
- No original module exists within this kernel
- Installation
- Installing to /lib/modules/4.9.0-0.bpo.4-amd64/updates/dkms/
zunicode.ko:
Running module version sanity check.
- Original module
- No original module exists within this kernel
- Installation
- Installing to /lib/modules/4.9.0-0.bpo.4-amd64/updates/dkms/
zfs.ko:
Running module version sanity check.
- Original module
- No original module exists within this kernel
- Installation
- Installing to /lib/modules/4.9.0-0.bpo.4-amd64/updates/dkms/
depmod...
DKMS: install completed.
Setting up libuutil1linux (0.6.5.9-2~bpo8+1) ...
Setting up libnvpair1linux (0.6.5.9-2~bpo8+1) ...
Setting up libzpool2linux (0.6.5.9-2~bpo8+1) ...
Setting up libzfs2linux (0.6.5.9-2~bpo8+1) ...
Setting up linux-headers-amd64 (4.9+80+deb9u2~bpo8+1) ...
Setting up zfsutils-linux (0.6.5.9-2~bpo8+1) ...
Job for zfs-import-scan.service failed. See 'systemctl status zfs-import-scan.service' and 'journalctl -xn' for details.
Job for zfs-share.service failed. See 'systemctl status zfs-share.service' and 'journalctl -xn' for details.
Job for zfs-mount.service failed. See 'systemctl status zfs-mount.service' and 'journalctl -xn' for details.
Setting up zfs-zed (0.6.5.9-2~bpo8+1) ...
Setting up openmediavault-zfs (3.0.18) ...
modprobe: FATAL: Module zfs not found.
dpkg: error processing package openmediavault-zfs (--configure):
subprocess installed post-installation script returned error exit status 1
Processing triggers for libc-bin (2.19-18+deb8u10) ...
Processing triggers for openmediavault (3.0.91) ...
Restarting engine daemon ...
Errors were encountered while processing:
openmediavault-zfs
>>> *************** Error ***************
On and on with Error...
Can someone point me to a fix? 
