View the Most Wanted LQ Wiki articles.
Go Back > Forums > Linux Forums > Linux - General
User Name
Linux - General This Linux forum is for general Linux questions and discussion.
If it is Linux Related and doesn't seem to fit in any other forum then this is the place.


  Search this Thread
Old 12-17-2011, 08:42 PM   #1
LQ Newbie
Registered: Dec 2011
Posts: 2

Rep: Reputation: Disabled
Help "error: unknown Filesystem" when I restarted my computer and deleted linux?

I have a computer with linux and windows vista installed on it.

I made a fatal error of deleting the partition pertaining to linux using a program from windows, but it seems that Linux itself didnt delete itself now I get the error and a sort of command line with command line that has "grub rescue>" what has happened?, how can I solve this! and get my windows back!! PLZ tell me I can
Old 12-17-2011, 09:41 PM   #2
Registered: Sep 2005
Distribution: Gentoo, Sabayon, Puppy, Arch
Posts: 165

Rep: Reputation: 29
Your Linux boot loader (grub) is still there. Easiest fix is probably to have grub load Windows instead... try typing `chainloader +1` or some such at that prompt. That should get you back into Windows.

What happens is that when you install grub (or lilo) it replaces the Windows boot loader with Linux's boot loader. If you don't back it up first, it's gone.

I'm not aware of any Windows utilities that will reinstall the Windows boot loader. I'm not saying they don't exist, just that I don't know about them.
Old 12-18-2011, 02:08 AM   #3
LQ 5k Club
Registered: Dec 2008
Location: Tamil Nadu, India
Distribution: Debian except for netbook still on Slackware 13.37 (and I have to support Ubuntu)
Posts: 8,572
Blog Entries: 30

Rep: Reputation: 1182Reputation: 1182Reputation: 1182Reputation: 1182Reputation: 1182Reputation: 1182Reputation: 1182Reputation: 1182Reputation: 1182
You might be able to boot the Windows installation CD or DVD and do a Rescue; that might re-install the windows boot loader, replacing GRUB.

Do you know if it is GRUB or GRUB2 that is installed? I do not recall seeing a "grub rescue" prompt from GRUB ... ?
Old 12-19-2011, 09:08 AM   #4
Senior Member
Registered: Apr 2005
Posts: 1,592

Rep: Reputation: 661Reputation: 661Reputation: 661Reputation: 661Reputation: 661Reputation: 661
The MBR contains only grub stage 1, the rest of grub (stage 2) is in the partition which you nuked, from windows. If you're going back to windows then your best course of action is to boot from the windows installation CD and restore the boot loader. In instructions on how to do this can be found online at numerous sites - the 'buntu forums also has numerous guides, howtos and threads on this subject...
Old 12-19-2011, 09:37 AM   #5
Registered: Mar 2004
Distribution: Debian
Posts: 283

Rep: Reputation: 65
the tool you are looking for is fixmbr which can be accessed from windows recovery console.


Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Similar Threads
Thread Thread Starter Forum Replies Last Post
Can't mount CD: "unknown filesystem type 'iso9660'" jlebar Linux - Software 9 02-19-2015 02:42 PM
What i s this error pop-up: "On line 3: unknown type "evolution""?? kline Linux - Desktop 0 11-25-2011 04:12 PM
[SOLVED] grub rescue: "error: unknown filesystem" when booting Windows XP / Ubuntu dual boot LittleRatRottenHut Linux - Laptop and Netbook 9 02-01-2011 08:32 PM
Debian Testing can't start with GRUB - "unknown filesystem" Pawbla Linux - General 13 08-31-2010 09:45 PM
"Unknown Device"s in lspci, computer running slow thrice Slackware 2 03-28-2004 08:14 AM

All times are GMT -5. The time now is 11:16 PM.

Main Menu
Write for LQ is looking for people interested in writing Editorials, Articles, Reviews, and more. If you'd like to contribute content, let us know.
Main Menu
RSS1  Latest Threads
RSS1  LQ News
Twitter: @linuxquestions
Facebook: linuxquestions Google+: linuxquestions
Open Source Consulting | Domain Registration