Mdadm: no arrays found in config file or automatically

Support and Help
1

Trying to fix the system.
Ubuntu Version:

Dont have that info right now.

Desktop Environment (if applicable):

Gnome i think.

Problem Description:

mdadm: no arrays found in config file or automatically

Relevant System Information:

The screenshot is the only info i have atm.

Screenshots or Error Messages:

IMG_0490
IMG_04901920×2560 325 KB

What I’ve Tried:

Ive asked chatgpt for help with this:
mdadm: no arrays found in config file or automatically.
This is the sugestion of the chatgpt and im waiting for the response of the person with the issue.
GPT-4o mini
The output you’ve provided appears to be an error message related to the mdadm tool, which is used for managing Linux software RAID arrays. The key points from the message indicate that the system is unable to find any RAID arrays, and it seems to be dropping into an initramfs shell due to a failure to mount the root filesystem.
Here are some steps you can take to troubleshoot and potentially resolve the issue:

  1. Check Boot Parameters: The message suggests checking the boot arguments. You can do this by running the command:
    bash
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cat /proc/cmdline

Look for any parameters that might be affecting the boot process, such as root= or rootdelay=.
2. Check for Missing Modules: The system may be missing necessary modules to access the RAID arrays. You can check the loaded modules with:
bash

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cat /proc/modules

ls /dev

Ensure that the necessary RAID modules are loaded.
3. Verify UUID: The error mentions that a specific UUID does not exist. You can check the UUIDs of your filesystems with:
bash

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blkid

Make sure that the UUID listed in the error message matches one of the devices shown.
4. Check RAID Status: If you have access to the RAID metadata, you can try to assemble the RAID array manually using:
bash

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mdadm --assemble --scan

This command attempts to assemble all arrays defined in the configuration files.
5. Inspect Configuration Files: Check the mdadm configuration file, usually located at /etc/mdadm/mdadm.conf, to ensure it is correctly configured.
6. Rebuild Initramfs: If you have made changes to the RAID configuration or if the initramfs is outdated, you may need to rebuild it. This can usually be done with:
bash

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update-initramfs -u
  1. Boot from Live Media: If the above steps do not resolve the issue, consider booting from a live USB or CD. This will allow you to access your disks and potentially recover data or fix the RAID configuration.
  2. Check Disk Health: If you suspect hardware issues, you can check the health of your disks using tools like smartctl:
    bash
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smartctl -a /dev/sdX

Replace /dev/sdX with the appropriate device identifier.
If you’re still having trouble after trying these steps, please provide more details about your setup, such as the type of RAID configuration you’re using and any recent changes made to the system.