You have to find out which partition is your Linux in and where the grub directory is.
Type “grub rescue>ls” and hit “ENTER” to list all disks and partitions.
Type “grub rescue>ls (hd0,0)/grub and hit “ENTER”.
Step 2: Type grub rescue > set root= (hd0, msdos8) and press the Enter key.
Step 3: Type grub rescue > set prefix= (0,8)/boot/grub and press the Enter key.
Step 4: Type grub rescue > insmod normal and press the Enter key.
Step 5: Type grub > normal and press the Enter key.
After entering rescue mode, type grub rescue > ls and press the Enter key on your keyboard to list all disks and partitions.
Type grub rescue > ls (hd0) and press the Enter Repeat this step and try each partition one by one until the contents of the partition appear instead of appearing the message:” Filesystem is unknown “.
After entering rescue mode, type grub rescue > ls and press the Enter key on your keyboard to list all disks and partitions.
Type grub rescue > ls (hd0) and press the Enter Repeat this step and try each partition one by one until the contents of the partition appear instead of appearing the message:” Filesystem is unknown “.
Cause of Rescue “Unknown Grub File System” The reason for this type of error could be that you have abnormally deleted a partition that has a second or duplicate operating system installed. For example, it could be a PC where you practically double boot between Windows and Linux. However, they deleted their Linux partition.
Trying to get into XP, Windows Windows Vista, and also Windows 7. About “No error: this partition form. Grub Rescue” The following advice for this error has been compiled by NeoSmart Technologies based on our own information and reports collected from a connected global network of engineers, developers and therefore technicians or partner organizations.
If you’re getting a serious “Error: Unknown file system” error, it’s not an Ubuntu partition. If it’s an Ubuntu you’re partitioning, you’ll usually see Ubuntu folders including Lost+Found/, Home/, Boot/ and vmlinuz and initrd.img. Focus on that in the first part of the next command. ls (hdX,Y)/boot/grub should show multiple *dozen.mod versions.
What to do if the Grub recovery file system is unknown?
The first trainer in Ubuntu from an ISO image.
What if the file system is probably unknown to Grub Rescue?
What if the Grub-Rescue database system is unknown?
There is another reason for this problem. In this particular scenario, GRUB got corrupted and needed to be repaired or reinstalled. However, as Grub-Rescue mentioned, “boot repair” can’t work with an unknown file system error, it’s also possible that the root partition where GRUB is installed is corrupted. To solve this problem:
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What if the grub storage file is unknown in the system?
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