How to Fix "Starting bpfilter" Boot Error on Ubuntu

How to fix the boot error stuck at Starting bpfilter on Ubuntu 19.04

The “Starting bpfilter” boot error is a persistent bug manifesting on various Ubuntu versions, including 14.04.6 LTS, 16.04.6 LTS, 18.04.3 LTS, 19.04 (Disco Dingo), and 19.10 (Eoan Ermine). This issue can be frustrating as it renders the operating system unresponsive to keyboard input, leaving a power down as the only escape.

Key Points

The “Starting bpfilter” error is typically a display manager failure, not an actual kernel or filter issue.
The bug usually appears after performing a system update or distribution upgrade.
Fixing the boot requires entering Recovery Mode and dropping to a shell prompt for manual repairs.
Switching to alternative display managers like Slim or LightDM is a highly effective workaround.
MVPS provides unmanaged services; users are responsible for troubleshooting OS-level boot errors.
Our VPS products do not include “dedicated CPU” or guaranteed resources for the processor.

How does the bpfilter boot error manifest?

The system typically hangs during boot time after an update to the latest version via apt-get upgrade or dist-upgrade. The OS stays stuck with the last message being “Starting bpfilter” because the Gnome Display Manager (GDM) fails to initialize correctly.

It is crucial to note that “Starting bpfilter” is simply the last successful output on the screen before the crash; it is rarely the cause of the problem itself. Once you regain access, you might want to look into how to increase the performance of an Ubuntu system to prevent future stability issues.

How to fix the Ubuntu boot bug in Recovery Mode?

To fix the issue, you must reboot into Recovery Mode. Press the Shift or ESC key repeatedly during reboot to access the Advanced options for Ubuntu, enable networking, and select “Drop to Shell Prompt”.

Fix 1: Remove Nvidia Drivers
If you have an Nvidia card, proprietary drivers might be the conflict point. Remove them using: sudo apt-get remove --purge nvidia-*

Fix 2: Modify GDM Configuration
Edit /etc/gdm3/custom.conf and uncomment the line: #WaylandEnable=false

Fix 3: Switch to an Alternative Display Manager
If GDM remains broken, installing a new manager like Slim or LightDM can bypass the boot hang: apt-get update && apt-get install slim
dpkg-reconfigure gdm3 (select slim and restart).

For those managing larger environments, learning how to install and setup an LDAP server on Ubuntu 19.04 can help centralize your authentication once your boot issues are resolved.

Conclusion – Restoring System Stability

While the “Starting bpfilter” hang can be a significant roadblock, following the fixes chronologically usually restores access to your Ubuntu desktop quickly. By utilizing Recovery Mode and alternative display managers, you can bypass these common update conflicts and get back to managing your workloads.

If you have successfully fixed your boot environment and are looking for more ways to scale your projects, feel free to explore our VPS Hosting solutions and take advantage of our global connectivity and NVMe-backed performance.

Frequently Asked Questions about Ubuntu bpfilter Boot Error

Is the bpfilter service the cause of the Ubuntu boot hang?

No. The “Starting bpfilter” message is usually just the last successful output on the screen before the Gnome Display Manager (GDM) fails to initialize. The actual issue is typically related to display drivers, Wayland, or GDM configuration conflicts.

Can MVPS support fix my Ubuntu boot error?

No. We provide unmanaged services, which means the user is responsible for troubleshooting OS-level issues and boot errors. Our support ensures that the vps is working, the network is ok, and functions on our website are working, but we definitely do not provide managed services.

Does my Ubuntu VPS come with dedicated CPU resources for high performance?

No. These products do not include a “dedicated CPU” or guaranteed resources in relation with the CPU. We provide optimized resources, including dedicated RAM and Disk space, to ensure the stability of the VPS environment for our users.

How do I access the shell if my Ubuntu system is stuck at boot?

You must enter Recovery Mode by pressing the Shift or ESC key during reboot. From there, select “Advanced options for Ubuntu” and then “Drop to Shell Prompt”. This allows you to perform manual repairs on your unmanaged VPS.