sudo nano /etc/fstab



The error indicates that the system is trying to mount /dev/nvme0n1p3, but it’s not listed correctly in /etc/fstab or the UUIDs/labels don’t match. Here’s how to resolve this issue:


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1. Boot into the System Temporarily

Use GRUB commands to boot into your system, as you did previously:

set root=(hd0,gpt6)
linux /boot/vmlinuz-5.15.0-130-generic root=/dev/nvme0n1p3 ro
initrd /boot/initrd.img-5.15.0-130-generic
boot

Replace /dev/nvme0n1p3 with the correct partition if needed.


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2. Check /etc/fstab

Once the system boots, open /etc/fstab to verify the partition setup:

Look for the line referring to the root filesystem (/). It should match the correct UUID or device name.


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3. Find the Correct UUID

Run the following command to list all partition UUIDs:

lsblk -f

Identify the UUID of /dev/nvme0n1p3 (or your root partition).


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4. Update /etc/fstab

Replace the incorrect entry in /etc/fstab with the correct UUID for the root partition. For example:

UUID=correct-uuid / ext4 defaults 0 1

Save and exit.


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5. Update GRUB

After fixing /etc/fstab, update GRUB to ensure the correct configuration is saved:

sudo update-grub
sudo grub-install /dev/nvme0n1


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6. Reboot

Reboot the system and verify that it starts correctly:

sudo reboot


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If you still encounter issues, share the output of lsblk -f and the contents of /etc/fstab for further troubleshooting.



source : chatgpt