Linux Mint: Stuck in Kernel Maintenence Mode

 If your Linux Mint system is stuck in "Kernel Maintenance Mode," it usually means that there's an issue with the boot process or the kernel update. This mode is typically triggered when there are problems with the kernel and it fails to load properly. Here's how you can troubleshoot and resolve the issue:


1. **Reboot the System**: Try to reboot your system and see if it successfully boots into a normal mode. If it doesn't, proceed with the following steps.


2. **Check for Kernel Panic**: When the system is stuck in Kernel Maintenance Mode, it might be due to a kernel panic. Look for error messages or kernel panic messages on the screen. These messages can provide clues about what went wrong.


3. **Use Recovery Mode**:

   If the system is stuck, you can try booting into recovery mode. Usually, you can access the GRUB menu during boot by pressing the Shift or Esc key. From there, select the recovery mode option. This mode provides a basic environment to troubleshoot and fix problems.


4. **Check Disk Space**: Ensure that your system has enough available disk space. A full disk can lead to booting issues. You can use recovery mode to access a command line and check the disk space using commands like `df`.


5. **Roll Back Kernel Updates**:

   If the issue occurred after a recent kernel update, you might need to roll back to a previous working kernel. In recovery mode, use the `apt` package manager to list available kernels and select an older one to boot from.


   ```bash

   apt list --installed | grep linux-image

   ```


   Then, select an older kernel version:


   ```bash

   sudo apt install linux-image-x.x.x-xx-generic

   ```


6. **Repair or Reinstall the Kernel**:

   In some cases, you may need to repair or reinstall the kernel to fix issues. You can use commands like `apt` or `dpkg` to do this. Ensure that you download and install the kernel version that matches your distribution.


7. **Check for File System Errors**: Use the `fsck` command to check for file system errors and attempt to repair them:


   ```bash

   fsck -f /dev/sdXY

   ```


   Replace `/dev/sdXY` with the correct partition device.


8. **Review Log Files**: Examine system logs (e.g., `/var/log/syslog`, `/var/log/dmesg`) to identify any specific errors or issues that may have caused the problem.


9. **Backup Data**: If none of the above solutions work, you might need to back up your data and consider a fresh installation or further diagnostics.


It's important to approach these troubleshooting steps carefully and with a good understanding of system administration. If you're unsure about any of these steps or continue to experience issues, consider seeking assistance from a knowledgeable Linux user or system administrator.

Comments

Post a Comment

Popular posts from this blog

bad character U+002D '-' in my helm template

 In Helm templates, the hyphen character (`-`) can sometimes be treated as a reserved character, particularly when defining values or labels. To include a hyphen character in a Helm template without issues, you can use one of the following approaches: 1. **Quoting the Hyphen:**    You can enclose the hyphen in double quotes, like this:    ```yaml    key: "-"    ```    This way, Helm will interpret the hyphen as a string rather than an operator. 2. **Using Backticks:**    If you need to use the hyphen within a Go template function or inside backticks, you can escape it with a backslash (`\`), like this:    ```yaml    value: `{{ .Values.someField | printf "%s \\-" }}`    ```    The backslash prevents Helm from interpreting the hyphen as a special character. 3. **Variable Assignment:**    Assign the value to a variable and use it. For example:    ```yaml    {{- $hyphen := "-" }}    key: {{ $hyphen }}    ```    This way, you can use the variable `$hyphen` wher
Read more

GitLab pipeline stopped working with invalid yaml error

 When your GitLab pipeline has stopped working with an "invalid YAML" error, it means there's a problem with your `.gitlab-ci.yml` file. This could be due to syntax errors, incorrect indentation, or other issues in your pipeline configuration. Here's how to troubleshoot and resolve this issue: 1. **Check for Syntax Errors**:    Carefully review your `.gitlab-ci.yml` file for any syntax errors. Common issues include missing colons, indentation problems, or mismatched quotation marks. Use a YAML linter or an online YAML validator to identify and correct syntax errors. 2. **Indentation**:    YAML relies heavily on proper indentation. Make sure that all lines within the same block have consistent indentation (typically using spaces, not tabs). Incorrect indentation can cause YAML parsing errors. 3. **Dashes and Lists**:    Ensure that you use the correct syntax for lists (arrays) in YAML by starting each item with a dash (`-`). Be consistent with your use of dashes throug
Read more

How do I add a printer in OpenSUSE which is being shared by a CUPS print server?

 To add a printer in openSUSE that is being shared by a CUPS print server, you can use the following steps: 1. **Ensure CUPS Client is Installed:**    Make sure your openSUSE system has the CUPS client tools installed. You can install them using the following command:    ```bash    sudo zypper install cups-client    ``` 2. **Discover Available Printers:**    Use the `lpinfo` command to discover available printers on your CUPS print server. Replace `cups-server-hostname` with the hostname or IP address of your CUPS server:    ```bash    lpinfo -v -h cups-server-hostname:631    ```    This command should list the printers shared by the CUPS server. 3. **Add a Printer:**    Use the `lpadmin` command to add a printer. Replace `printer-name` with the name of the printer you want to add and `printer-uri` with the URI obtained from the `lpinfo` command:    ```bash    sudo lpadmin -p printer-name -E -v printer-uri    ```    For example:    ```bash    sudo lpadmin -p MyPrinter -E -v socket://cu
Read more