Mount disk issue

It looks like your PC is having an issue with the EFI boot partition. This could happen due to an improperly mounted EFI partition or a corrupted bootloader. Here’s how you can fix it:

Step 1: Check EFI Partition

1. Boot into your Linux system (if it starts after the error).

2. Open a terminal and check your disk partitions by running:

sudo fdisk -l

3. Look for a partition labeled EFI System (usually something like /dev/sdX1 or /dev/nvme0n1p1).

Step 2: Manually Mount EFI Partition

If your EFI partition is not mounted, try mounting it manually:

1. Create a mount point:

sudo mkdir -p /boot/efi

2. Mount the partition (replace /dev/sdX1 with the correct partition from Step 1):

sudo mount /dev/sdX1 /boot/efi

Step 3: Fix fstab Entry

1. Open the fstab file:

sudo nano /etc/fstab

2. Look for a line referring to /boot/efi. If missing, add:

UUID=<your-efi-uuid> /boot/efi vfat defaults 0 1

Replace <your-efi-uuid> with the correct UUID (get it using blkid command).

3. Save and exit (Ctrl + X, then Y, then Enter).

Step 4: Reinstall GRUB (if needed)

If the issue persists, reinstall the GRUB bootloader:

1. For UEFI systems:

sudo grub-install --target=x86_64-efi --efi-directory=/boot/efi --bootloader-id=GRUB

sudo update-grub

2. For BIOS (legacy) systems:

sudo grub-install /dev/sdX # Replace sdX with your main disk (e.g., /dev/sda)

sudo update-grub

Step 5: Reboot

sudo reboot

This should

 resolve the issue. Let me know if you need further assistance!