I'm trying to install virtualbox on OMV 4-1.17-1 but keep getting this error
WARNING: The character device /dev/vboxdrv does not exist.
Please install the virtualbox-dkms package and the appropriate
headers, most likely linux-headers-amd64
uname -r
4.14.0-0.bpo.3-amd64
dpkg -l | grep -i headers
ii libacl1-dev 2.2.52-3+b1 amd64 Access control list static libraries and headers
ii libattr1-dev:amd64 1:2.4.47-2+b2 amd64 Extended attribute static libraries and headers
ii linux-headers-4.19.0-0.bpo.1-amd64 4.19.12-1~bpo9+1 amd64 Header files for Linux 4.19.0-0.bpo.1-amd64
ii linux-headers-4.19.0-0.bpo.1-common 4.19.12-1~bpo9+1 all Common header files for Linux 4.19.0-0.bpo.1
ii linux-headers-amd64 4.19+101~bpo9+1 amd64 Header files for Linux amd64 configuration (meta-package)
ii linux-libc-dev:amd64 4.9.110-3+deb9u4 amd64 Linux support headers for userspace development
apt-get install linux-headers-$(uname -r)
Reading package lists... Done
Building dependency tree
Reading state information... Done
E: Unable to locate package linux-headers-4.14.0-0.bpo.3-amd64
E: Couldn't find any package by glob 'linux-headers-4.14.0-0.bpo.3-amd64'
E: Couldn't find any package by regex 'linux-headers-4.14.0-0.bpo.3-amd64'
dpkg --list | grep linux-image
ii linux-image-4.14.0-0.bpo.3-amd64 4.14.13-1~bpo9+1 amd64 Linux 4.14 for 64-bit PCs
ii linux-image-amd64 4.14+89~bpo9+1 amd64 Linux for 64-bit PCs (meta-package)