Kubuntu and Neon users may occasionally encounter PCIe Bus Errors during bootup or shutdown. These errors, often related to a specific device, are typically classified as Corrected errors. While they may not cause any noticeable issues or crashes, it’s always a good idea to investigate and address any errors to ensure the stability and reliability of your system. In this article, we’ll guide you through several steps to fix the PCIe Bus Error on Kubuntu and Neon.
To fix the PCIe Bus Error on Kubuntu and Neon, you can try updating your system’s BIOS, kernel, and system packages. Additionally, checking for SSD firmware updates and trying different kernel boot parameters related to PCIe may help resolve the error. Monitoring system logs for additional information can also be beneficial.
Understanding the Problem
The PCIe Bus Error usually manifests itself during the bootup or shutdown process. You might see messages related to a specific device, like nvme 0000:04:00.0, and the errors are classified as Corrected errors. Despite not causing any behavioral issues or crashes, these errors can be alarming and should be addressed.
Possible Causes of the Error
- Faulty SSD: Even new SSDs can be faulty and cause intermittent errors. Running diagnostic tests on the SSD or trying a different SSD can help rule out this possibility.
- Outdated BIOS: An outdated BIOS can sometimes cause compatibility issues. Updating your system’s BIOS to the latest version can resolve these issues.
- Outdated Kernel or System Packages: Older versions of the kernel or system packages might not have the necessary bug fixes or improvements related to PCIe devices. Keeping your system updated can prevent these errors.
How to Fix the Error
Update Your System’s BIOS
The first step in troubleshooting the PCIe Bus Error is to update your system’s BIOS. This can often resolve compatibility issues. Consult your system’s or motherboard’s documentation for specific instructions on how to update the BIOS.
Update Kernel and System Packages
Keeping your system updated is crucial. Newer versions of the kernel and other system packages often come with bug fixes or improvements that can resolve issues related to PCIe devices. Use the following commands to update your system:
sudo apt update
sudo apt upgradesudo apt update updates the list of available packages and their versions, but it does not install or upgrade any packages. sudo apt upgrade actually installs newer versions of the packages you have.
Check for SSD Firmware Updates
Check for any firmware updates for your SSD and apply them if available. The process to update your SSD firmware varies depending on the manufacturer, so consult your SSD’s documentation or the manufacturer’s website for specific instructions.
Try Different Kernel Boot Parameters
You can try different kernel boot parameters related to PCIe, such as pci=nommconf or pci=nomsi. These parameters can sometimes have an effect on the errors. To add these parameters, edit the /etc/default/grub file:
sudo nano /etc/default/grubFind the line that starts with GRUB_CMDLINE_LINUX_DEFAULT and add the parameter to the end of the quoted text. For example:
GRUB_CMDLINE_LINUX_DEFAULT="quiet splash pci=nomsi"After saving and closing the file, update GRUB with the following command:
sudo update-grubThen, reboot your system to apply the changes.
Monitor System Logs
Monitor your system logs for any additional information or patterns related to the errors. The dmesg command can be used to display system messages:
dmesg | grep -i "error"This command filters the system messages to show only those that include the word “error”.
Conclusion
Troubleshooting hardware and kernel-related issues can be complex and may require a combination of different approaches to find a satisfactory solution. Remember to reach out to the manufacturer of your SSD or system for further assistance or troubleshooting steps specific to their hardware. By following the steps outlined in this article, you should be well on your way to resolving the PCIe Bus Error on Kubuntu and Neon.
A PCIe Bus Error is an error that occurs during the bootup or shutdown process on Kubuntu and Neon. It is often related to a specific device and is classified as a Corrected error. Although it may not cause any noticeable issues or crashes, it is important to address these errors for system stability and reliability.
PCIe Bus Errors are usually displayed as error messages during the bootup or shutdown process. These messages often mention a specific device, such as nvme 0000:04:00.0. Keep an eye out for these error messages to identify PCIe Bus Errors.
PCIe Bus Errors are typically classified as Corrected errors and may not cause any system crashes or noticeable behavioral issues. However, it is still important to investigate and address these errors to ensure the stability and reliability of your system.
Some possible causes of PCIe Bus Errors include faulty SSDs, outdated BIOS, and outdated kernel or system packages. It is recommended to run diagnostic tests on your SSD, update your system’s BIOS, and keep your system updated to prevent these errors.
To update your system’s BIOS, refer to the documentation provided by your system or motherboard manufacturer. They should have specific instructions on how to update the BIOS for your particular system.
To update the kernel and system packages on Kubuntu and Neon, open a terminal and run the following commands:
sudo apt update
sudo apt upgradeThe first command updates the list of available packages, while the second command installs newer versions of the packages you have.
To check for firmware updates for your SSD, consult the documentation provided by the SSD manufacturer or visit their website. They should have specific instructions on how to check for and apply firmware updates for your SSD model.
You can try adding different kernel boot parameters related to PCIe, such as pci=nommconf or pci=nomsi. These parameters can sometimes have an effect on the errors. To add these parameters, edit the /etc/default/grub file using a text editor like nano:
sudo nano /etc/default/grubFind the line that starts with GRUB_CMDLINE_LINUX_DEFAULT and add the parameter to the end of the quoted text. For example:
GRUB_CMDLINE_LINUX_DEFAULT="quiet splash pci=nomsi"Save and close the file, then update GRUB with the following command:
sudo update-grubReboot your system to apply the changes.
You can use the dmesg command to display system messages and filter them for errors related to PCIe. Open a terminal and run the following command:
dmesg | grep -i "error"This command will display system messages that include the word "error", allowing you to monitor any additional information or patterns related to PCIe Bus Errors.
