If you get an “error: unknown filesystem” this is not your Ubuntu partition. If this is the Ubuntu partition, you will see the Ubuntu folders, including lost+found/, home/, boot/ and vmlinuz and initrd.img. Use this address as the first part of the next command. ls (hdX,Y)/boot/grub – should display several dozen *.mod files.
If you get an “error: unknown filesystem” this is not your Ubuntu partition. If this is the Ubuntu partition, you will see the Ubuntu folders, including lost+found/, home/, boot/ and vmlinuz and initrd.img. Use this address as the first part of the next command. ls (hdX,Y)/boot/grub – should display several dozen *.mod files.
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Use a tool like Etcher to write a Linux image to an SD card or USB stick.
Insert a bootable device in addition to starting the computer.
Select “Try ie8” on the main screen.
Step 1 Know that we are rooting the partition. Boot from a live CD, DVD, or USB stick.
Step two: mount the root partition. 3:
Be COOL.
Step 4: Grub cleans up 2 packages.
Step 5: Reinstall grub packages.
Step 6: Unmount the partition:
Just type “set prefix=(hd0,msdos6)/PathToGrubFiles”, “insmod normal”, then “normal”. Again, this situation will be different for each Internet. For example, you might need to type “set prefix=(hd0,msdos6)/grub2/ [enter] insmod correct [enter] normal [enter]” or “set prefix=(hd1,msdos6)/boot/grub/” . “.
“Grub recovery file unfamiliar system” factor The cause of this error is most likely that you have performed an abnormal deletion of a partition that has a second/duplicate operating system installed. In this example, this might be the PC you used to dual boot between Windows and Linux. However, you have deleted the Linux partition.
If the error persists: unknown file system, go back to task 3, grub settings, if grub rescue is often highlighted > it means my partition settings are correct and after that the input is normal.
The GRUB folder where the modules must reside so that the correct modules can be loaded. This folder was created during the initial installation of Ubuntu or should be on the Ubuntu partition. This is usually (hdX,Y)/boot/grub, possibly (hdX,Y)/usr/lib/grub/i386-pc.
The first sneakers under Ubuntu from the iso image.
What to do in cases where the Grub-Rescue system file may be marked as unknown?
What if the Grub rescue image is unknown on the system?
What to do if the Grub-Rescue boot system is unknown?
There is another reason for this problem. In this particular case, GRUB got corrupted and had to be repaired or reinstalled. However, since Grub doesn’t show up in Rescue with “Boot Recovery” with an “unknown file system” error, it’s also possible that the root partition where GRUB is installed is corrupted. To solve this problem:
What if the Grub rescue archive is unknown on the system?
First, boot into Ubuntu in the hands of the ISO image.
How can you help when the Grub-Rescue file system is not exactly known?
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What if the community of Grub recovery files is unknown?
Why is the grub rescue file system literally unknown?
There is another reason for this problem. In this particular example, GRUB got corrupted somehow and needed to be repaired or reinstalled. However, as failures in rescuing grub using “boot repair” with “unknown filesystem” management show, it’s also possible that the root partition where GRUB is installed is corrupted. To solve this problem:
What to do if the Grub recovery file is unknown?
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