Multiple kmod-lve packages may prevent the kmod-lve module from loading

Issue

One could encounter the errors like:

Error: current running kernel is NOT supported

Or

error: clcommon: get_lve_version: Can`t open file /proc/lve/list

Environment

• CloudLinux OS 7 hybrid
• CloudLinux OS 8
• kmod-lve

Solution

1. Check if the required kernel module is loaded on your server with the following command:

# lsmod | grep lve

An empty output means the module is missing. Normally, the kmod-lve should be listed there.

2. Also, check:

# rpm -qa | grep kmod-lve

Only one module should be in the output.

3. You can remove extra packages with the yum command, for example:

yum remove kmod-lve-2.0-31.el7h.x86_64

4. And reboot the server.

5. Also, make sure that the kmod-lve module corresponds to the kernel:

• 4.18.0-193.28.1 – kmod-lve-2.0-30, kmod-lve-2.0-31
• 4.18.0-305 – kmod-lve-2.0-32
• 4.18.0-305.7.1 – kmod-lve-2.0-33, kmod-lve-2.0-34
• 4.18.0-305.10.2.2 – kmod-lve-2.0-35
• 4.10.0-305.12.1 – kmod-lve-2.0-36

Cause

1. It's possible to update the kernel without updating kmod-lve, so, old kmod-lve will not load for obvious reasons.
2. It's possible that the old non-compatible kmod-lve module will try to load instead of a newer compatible one. 

Useful links

How to choose the correct kernel to boot