1

I am currently running an older distribution of Ubuntu. I attempted to create a live Windows USB drive and booted from my Ubuntu machine. When I attempted to boot back into Ubuntu I am greeted with "unknown filesystem" and I'm launched into the grub rescue.

I've tried locating the drive that contains my Linux distribution but when I "ls" I only see (hd0), (hd0,msdos5), and (hd0,msdos1). I have attempted to set the root and prefix of all of these drives and when I input the command "insmod normal" after "set prefix=('drive')/boot/grub I get the "unknown filestem" response.

I am very novice when it comes to Ubuntu and Linux so I apologize in advance if I'm simply missing something remedial and for the horrible formatting but I am at the end of my wits. Any help would be greatly appreciated.

heynnema
  • 73,649
gurt
  • 11

3 Answers3

1

My first instinct with GRUB problems is to restore GRUB from a live CD/media. For this you will need some sort of live media with Ubuntu installed upon it.

  1. Boot into the live media

  2. Open a terminal

  3. Run the following commands, each line is a new command 

    sudo apt-add-repository ppa:yannubuntu/boot-repair
sudo apt-get update
sudo apt-get install -y boot-repair
boot-repair
  4. Follow the instructions in boot repair and Select 'recommended repair'
  5. Allow the repair to complete and then restart ensuring you remove your live media

For a more indepth explanation of boot repair see here

Jakob45
  • 93
1

If you also have Windows 10 installed, did you just finish doing some Windows 10 updates?

If so, you've probably been hit with the Windows 10 Anniversary Update bug. It updates Windows 10, and wipes out Ubuntu (Linux) partitions.

You can try using testdisk to try and recover your missing partition. See http://www.cgsecurity.org/wiki/TestDisk_Step_By_Step for information on how to use testdisk. You'll need to obtain a Ubuntu Live DVD/USB to run testdisk.

heynnema
  • 73,649
0

This my help with some:

I got that message after install. I did a re-install after I removed all mounted drives (beware, those SD cards may be in their slot without you realising it) and all went OK.

Peter Mortensen
  • 854
Shane Wiley
  • 3