Grub rescue error (insmod normal)

I was trying to make it normal from grub rescue error. But, msdos7 is returning that filesystem is ext2. When I write insmod normal I get "invalid file name 'hd0,msdos7/i386-pc/normal.mod" How can I fix it? I have bootable USB . that's arch Linux. Even, I tried by bootable USB also. When I reboot my laptop that(grub Loader) don't show anymore(like it had erased automatically when rebooting). I was following the answer https://askubuntu.com/a/462995 When I tried to search search.file ... I got an error unknown command 'search.file'. root@mint:~# fdisk -l Disk /dev/loop0: 1.8 GiB, 1912557568 bytes, 3735464 sectors Units: sectors of 1 * 512 = 512 bytes Sector size (logical/physical): 512 bytes / 512 bytes I/O size (minimum/optimal): 512 bytes / 512 bytes Disk /dev/sda: 298.9 GiB, 320072933376 bytes, 625142448 sectors Disk model: Hitachi HTS72323 Units: sectors of 1 * 512 = 512 bytes Sector size (logical/physical): 512 bytes / 512 bytes I/O size (minimum/optimal): 512 bytes / 512 bytes Disklabel type: dos Disk identifier: 0xcdead0a2 Device Boot Start End Sectors Size Id Type /dev/sda1 * 1026048 272532369 271506322 129.5G 7 HPFS/NTFS/exFAT /dev/sda2 272533504 273694719 1161216 567M 27 Hidden NTFS WinRE /dev/sda3 273696768 274747391 1050624 513M b W95 FAT32 /dev/sda4 274747392 625142447 350395056 167.1G 5 Extended /dev/sda5 274749440 275726335 976896 477M ef EFI (FAT-12/16/32) /dev/sda6 275728384 277682175 1953792 954M 82 Linux swap / Solaris /dev/sda7 277684224 625142447 347458224 165.7G 83 Linux This is how I installed grubloader but, I am getting the grub error although. /dev/sda7 is arch Linux. And, /dev/sda1 is windows. I had Kali earlier. I had deleted partition/volume of kali,swap and grub from windows manager. I noticed that type /dev/sda7 is ext2. But, I remember that I formatted it to ext4. Now, I have Linux Mint bootable USB. root@mint:~# mount /dev/sda5 /mnt mount: /mnt: /dev/sda5 already mounted on /mnt. root@mint:~# grub-install /dev/sda5 Installing for i386-pc platform. grub-install: error: failed to get canonical path of `/cow'. [![enter image description here]] I was following [the video](https://youtu.be/biGNIMIRgNU?t=303) . I notice that he set flags to bios_grub. But, I don't have bios_grub. What to do now?