[How to Fix] error: file ‘/boot/grub/i386-pc/normal.mod’ not found

Error: file ‘/boot/grub/ i386-PC/Normal.mod ‘not found
The partition was formatted when installing The Ubuntu system. After the installation, the boot error appeared: file ‘/boot/ GRUB/i386-PC/Normal.mod ‘not found
grub rescue> Interface,
I tried ls (HD0, MSDOS1) (HD0, MSDOS2) to find the Linux partition, but my computer’s ls (HD0, MSDOS1) returned unknown filesysem, so I could not find the corresponding Linux partition
So we did it in a different way:
Repair with the Boot Repair tool,
Use a usb flash drive with Ubuntu to boot, insert the usb flash drive in the way of installing the system, press ESC (or F11, F12 depending on your computer model) to launch the usb flash drive, and then select TRY Ubuntu (do not install Ubuntu) to enter the Ubuntu system:
1. Connect to the network
2. Open the terminal
3. Enter a command
sudo add-apt-repository ppa:yannubuntu/boot-repair & & sudo apt-get update
sudo apt-get install -y boot-repair & & boot-repair
4, click repair, complete, restart the computer is good
Attached is the Boot Repair website with detailed instructions

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