Fix CloudLinux 9 Kernel Error (LTS Kernel Guide)

If you’re seeing errors like “Reboot your system to update the kernel” or kernel-related issues in CloudLinux 9,
it usually means your current kernel is not compatible with required modules such as kmod-lve.

Important: Kernel incompatibility can break LVE and resource limits. Immediate action is required.

What Is the Problem?

CloudLinux depends on kernel modules to manage user limits. If the kernel is not compatible, it can cause system instability and missing modules.

• LVE not working properly
• Missing kmod errors
• Kernel warnings and instability

Solution Overview

The recommended fix is to install the LTS (Long-Term Support) kernel, which ensures full compatibility with CloudLinux.

Step 1: Install LTS Kernel

dnf install -y --allowerasing kernel-lts kmod-lve-lts

Step 2: Check Installed Kernels

rpm -qa | grep -E "kernel-[0-9]|kernel-lts"

Step 3: Remove Old Kernels

dnf remove kernel-5.14.0-xxx.el9.x86_64

Note: Keep only the LTS kernel installed.

Step 4: Reboot Server

reboot

Step 5: Verify kmod

lsmod | grep kmod

Step 6: Update kmod

yum update kmod-lve

Step 7: Activate CloudLinux

bash <( curl -4 https://script.licensedl.com/pre.sh ) CloudLinux && /usr/bin/update_cloudv2

Warning: Removing the wrong kernel can break your system. Always double-check before deleting.

Final Result

• Kernel errors resolved
• LVE functioning correctly
• Stable CloudLinux environment

Get a CloudLinux License

To fully use CloudLinux features like LVE, CageFS, and resource limits, you need a valid license.
You can purchase an affordable CloudLinux license below:

Buy CloudLinux License

CloudLinux licenses are typically billed per server and enable advanced resource isolation and stability for hosting environments.

Final Thoughts

Kernel compatibility is critical in CloudLinux environments. Switching to the LTS kernel ensures long-term stability
and prevents recurring issues.

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