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How To Fix ACPI BIOS ERROR on Ubuntu 18.04

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In this article, we will explore how to resolve the ACPI BIOS ERROR on Ubuntu 18.04. This error often causes the system to get stuck during boot, making it a critical issue to address. Let’s dive in.

Quick Answer

To fix the ACPI BIOS ERROR on Ubuntu 18.04, you can try changing the SATA configuration to ACPI in the BIOS settings, checking the boot arguments for the rootdelay parameter, verifying necessary modules, and checking the UUID of the root partition. If none of these solutions work, seek further assistance from Ubuntu support forums or consult with a professional technician.

Understanding ACPI BIOS ERROR

The Advanced Configuration and Power Interface (ACPI) BIOS ERROR is a bug that can occur in the booting process of an Ubuntu 18.04 system. This error typically indicates a problem with the system’s BIOS settings or the boot parameters.

Solution 1: Changing SATA Configuration to ACPI

The first potential solution is to change the SATA configuration to ACPI in the BIOS settings. Here’s how to do it:

  1. Restart your system and press the specific key (usually F2, F10, or Del) to enter the BIOS menu.
  2. Navigate to the SATA configuration options.
  3. Look for an option related to ACPI and enable it.
  4. Save the changes and restart your system.

Note: The exact steps can vary between different BIOS versions and manufacturers. Consult your motherboard or system documentation for specific instructions.

Solution 2: Checking Boot Arguments

If changing the SATA configuration doesn’t resolve the issue, you can check the boot arguments to ensure that the rootdelay parameter is set appropriately.

Use the following command to check your boot arguments:

cat /proc/cmdline

The rootdelay parameter specifies the amount of time the system should wait before mounting root filesystems. If it’s not set or is set incorrectly, it can cause boot problems.

Solution 3: Verifying Necessary Modules

Another potential solution is to verify the presence of necessary modules. You can do this using the following commands:

cat /proc/modules
ls /dev

The first command (cat /proc/modules) lists all the loaded kernel modules, while the second command (ls /dev) lists all the device files. These commands can help you check if any necessary modules or devices are missing.

Solution 4: Checking UUID

The ACPI BIOS ERROR message often indicates a problem with the UUID of the root partition. You can check if the UUID mentioned in the error message matches the actual UUID of the root partition.

Use the following command to check the UUID of your root partition:

blkid

If the UUID in the error message doesn’t match the actual UUID, you’ll need to update it in the appropriate configuration file (usually /etc/fstab).

Conclusion

Resolving the ACPI BIOS ERROR on Ubuntu 18.04 involves a series of steps, from changing BIOS settings to checking boot arguments and verifying necessary modules. If none of these solutions work, consider seeking further assistance from Ubuntu support forums or consult with a professional technician.

Remember, it’s always important to back up your data before making any significant changes to your system. Happy troubleshooting!

How can I enter the BIOS menu on my Ubuntu 18.04 system?

To enter the BIOS menu, restart your system and press the specific key (usually F2, F10, or Del) when prompted. The exact key can vary depending on your system’s manufacturer.

What should I do if I can’t find the ACPI option in the SATA configuration settings?

If you can’t find the ACPI option in the SATA configuration settings, it’s possible that your system’s BIOS doesn’t support it. In such cases, you may need to update your BIOS to a newer version that includes ACPI support. Consult your motherboard or system documentation for instructions on updating the BIOS.

How can I modify the boot arguments?

To modify the boot arguments, you will need to edit the GRUB configuration file. Open a terminal and enter the following command to open the file in a text editor:

sudo nano /etc/default/grub

Look for the line that starts with GRUB_CMDLINE_LINUX_DEFAULT and add or modify the rootdelay parameter as needed. Save the changes and exit the text editor. Finally, update the GRUB configuration by running the following command:

sudo update-grub
How can I update the UUID in the /etc/fstab file?

To update the UUID in the /etc/fstab file, open a terminal and enter the following command to edit the file:

sudo nano /etc/fstab

Locate the line that corresponds to your root partition and update the UUID with the correct value. Save the changes and exit the text editor.

Note: Make sure to have the correct UUID from the blkid command mentioned in Solution 4.

What should I do if none of the solutions work?

If none of the solutions mentioned in the article work for you, it is recommended to seek further assistance from the Ubuntu support forums or consult with a professional technician. They can provide personalized help and guidance based on your specific system configuration.

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