[CentOS] Centos missing kmod-kvdo

Tue Oct 8 13:09:40 UTC 2019
Andrew Walsh <awalsh at redhat.com>

On Tue, Oct 8, 2019 at 2:46 AM Giuseppe Tanzilli - Serverplan
<giuseppe at serverplan.com> wrote:
> hi,
> I'm testing the new CentOS 8,
> seems latest kmod-kvdo- does not contain modules
> for latest kernel kernel-4.18.0-80.7.1.el8_0.x86_64

The kmod can be built against an older kernel and used on the more
modern version.  That is, unless the symbols in use had a signature
change, which would signal to the kernel module that they may not work
with the newer kernel.

>   rpm -ql kmod-kvdo-
> /etc/depmod.d/kvdo.conf
> /lib/modules/4.18.0-79.el8+2.x86_64
> /lib/modules/4.18.0-79.el8+2.x86_64/extra
> /lib/modules/4.18.0-79.el8+2.x86_64/extra/kmod-kvdo
> /lib/modules/4.18.0-79.el8+2.x86_64/extra/kmod-kvdo/uds
> /lib/modules/4.18.0-79.el8+2.x86_64/extra/kmod-kvdo/uds/uds.ko
> /lib/modules/4.18.0-79.el8+2.x86_64/extra/kmod-kvdo/vdo
> /lib/modules/4.18.0-79.el8+2.x86_64/extra/kmod-kvdo/vdo/kvdo.ko
> /usr/lib/.build-id
> /usr/lib/.build-id/4d
> /usr/lib/.build-id/4d/fae93dd1945f44167de4f5e60bc6dcac0aed54
> /usr/lib/.build-id/af
> /usr/lib/.build-id/af/e99d52bb67273e1bca049b950ea37044005aa8
> /usr/share/doc/kmod-kvdo/greylist.txt

This should be fine, I see the two kernel modules in the list.

> it is clean install without external repo.
> I'm missing something ?

Can you run as root (or with sudo) `modprobe kvdo`?