Squashed 'temp-repo/' content from commit 6688605

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Homelab/fix grub if linux doesn't boot.md

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+
+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:
+
+
+---
+
+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.
+
+
+---
+
+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.
+
+
+---
+
+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).
+
+
+---
+
+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.
+
+
+---
+
+5. Update GRUB
+
+After fixing /etc/fstab, update GRUB to ensure the correct configuration is saved:
+
+sudo update-grub
+sudo grub-install /dev/nvme0n1
+
+
+---
+
+6. Reboot
+
+Reboot the system and verify that it starts correctly:
+
+sudo reboot
+
+
+---
+
+If you still encounter issues, share the output of lsblk -f and the contents of /etc/fstab for further troubleshooting.
+
+
+
+source : chatgpt
+