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-6.2.0.293-50.el8.x86_64 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-6.2.0.293-50.el8.x86_64 > /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`? Thanks, Andy