LinuxQuestions.org
Visit Jeremy's Blog.
Go Back   LinuxQuestions.org > Forums > Linux Forums > Linux - Newbie
User Name
Password
Linux - Newbie This Linux forum is for members that are new to Linux.
Just starting out and have a question? If it is not in the man pages or the how-to's this is the place!

Notices


Reply
  Search this Thread
Old 01-07-2014, 12:25 AM   #1
thetruejonolson
LQ Newbie
 
Registered: Jan 2014
Posts: 7

Rep: Reputation: Disabled
error: unknown filesystem. grub rescue> _


Hi, I a have dual boot with Linux Mint and Windows 7. Today, after using Partition Wizard on Windows to extend its partition, I got the following message when rebooting:

error: unknown filesystem. grub rescue> _

I was trying to delete linux be extending the Windows partition over it. I had been playing around with Linux just for fun, but I was running out of space for windows. (I allocated 60 out of 300 GB for Linux) I have no experience with Linux at all, and this is a family computer so I would really appreciate any easy to understand replies. Thanks!
 
Old 01-07-2014, 12:43 AM   #2
thetruejonolson
LQ Newbie
 
Registered: Jan 2014
Posts: 7

Original Poster
Rep: Reputation: Disabled
I also have a windows recovery disk that I booted to. When this finally finished loading, it came up with a box that gave the error code, "0x4001100200001012" I'm not sure what to do about all this.
 
Old 01-07-2014, 12:51 AM   #3
jms89
Member
 
Registered: Jan 2013
Posts: 41

Rep: Reputation: Disabled
Well, you've removed the partition which contained the stage-2 for your GRUB bootloader, so I believe that error message is from grub stage 1 complaining it can't read stage 2.

Assuming you didn't damage your windows parititon, you need to restore your windows MBR to be able to boot windows again (since grub is toast) - which you should be able to do using the recovery disk... however I know that Windows does NOT like having its parition changed without using the microsoft parition tools...

Did the recovery disk notify you that it found your windows installation?
 
Old 01-07-2014, 12:55 AM   #4
thetruejonolson
LQ Newbie
 
Registered: Jan 2014
Posts: 7

Original Poster
Rep: Reputation: Disabled
It only loaded the windows files, and popped up a box that had the error code in it. It didn't give me anything else to work with. After I clicked "ok" It just restarted the computer. I've done that multiple times now.

Last edited by thetruejonolson; 01-07-2014 at 01:10 AM.
 
Old 01-07-2014, 01:09 AM   #5
thetruejonolson
LQ Newbie
 
Registered: Jan 2014
Posts: 7

Original Poster
Rep: Reputation: Disabled
(I did make a recovery disk before this error started happening, because it was in the instructions)I was using this link to uninstall Linux, but it wouldn't let me delete the partition a second time to make it unallocated space. It would give me this error message,"There is not enough space available on the disk(s) to perform this operation." So I went to this link and used Gregrocker's suggestion of Partition Wizard, a bootable disc to edit the partition. When I booted off the disc, I extended the Windows OS partition over the 60GB Linux Partition. That's when all my trouble began.
 
Old 01-07-2014, 01:10 AM   #6
jms89
Member
 
Registered: Jan 2013
Posts: 41

Rep: Reputation: Disabled
What exactly do you mean "loaded all the windows files"? You mean it crashes once the disk is finished loading, and before it gives you the option of providing any input, or it found your windows installation and crashed afterward?

Also, did you make this recovery disk yourself, and have you ever used it before?
 
Old 01-07-2014, 01:16 AM   #7
thetruejonolson
LQ Newbie
 
Registered: Jan 2014
Posts: 7

Original Poster
Rep: Reputation: Disabled
It loaded all the files off the disk, did not give me a chance to input, and did not find a windows installation. I made the recovery disk by going to Control Panel>System and Security>Backup and Restore>Create a system repair disc. I have not used it except after I used partition wizard. I was hoping that after using partition wizard, it would let me enter the recovery menu, where I could use the command "bootrec.exe /fixmbr" to delete the linux bootloader, so it would boot straight into Windows.
 
Old 01-07-2014, 01:22 AM   #8
jms89
Member
 
Registered: Jan 2013
Posts: 41

Rep: Reputation: Disabled
It sounds to me like there's something wrong the the recovery disk its self - you should be able to boot into the disk regardless of the state of the hard drive, so if it's crashing before you can even do anything, it's probably messed up - maybe the disk was scratched or dirty when you burned it, or something may have gone wrong.

I'd reccomend trying another recovery disk if you can get one, or double check by attempting to use the disk on another computer and see if it crashes there as well (my guess is it will).
 
Old 01-07-2014, 01:28 AM   #9
thetruejonolson
LQ Newbie
 
Registered: Jan 2014
Posts: 7

Original Poster
Rep: Reputation: Disabled
So I can make another recovery disk on another computer, and use it with the one having the problem? In this thread they've said the same thing you did, that it might be made corrupted as it goes. Also, would this command, "bootrec.exe /fixmbr" that I mentioned earlier, make my computer boot to windows if I got the recovery disk working?
 
Old 01-07-2014, 01:36 AM   #10
jms89
Member
 
Registered: Jan 2013
Posts: 41

Rep: Reputation: Disabled
You may not even need to use the console, the recovery disk may find it on it's own. You should be able to boot back into windows once it's done, however you'll very likely find that your system is broken and unusable, and probably will tell you that your windows is not genuine. If you get that far, post back here and I can give you something to try which should fix it. (I know because I recently moved my windows parition and broke it in a similar way, but I knew it was going to break and was prepared to fix it before I began)
 
Old 01-07-2014, 04:48 PM   #11
thetruejonolson
LQ Newbie
 
Registered: Jan 2014
Posts: 7

Original Poster
Rep: Reputation: Disabled
Smile

So, I was able to make a windows recovery disc on another computer. I then booted to that disk and tried using system repair. That didn't find anything that wasn't normal, so I opened the command prompt. I then typed in the command that I mentioned earlier, "bootrec.exe /fixmbr," which completed successfully. I then rebooted the computer, and it booted straight into windows, without any error messages. My Windows 7 OS is working exactly as it did when it was dual-booting linux, except that the Windows partition is now extended over it. Thanks for all you help jms89! I really appreciated your advice. I'm so glad I was able to save this computer, even though it's pretty old.
 
  


Reply


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 Off
HTML code is Off



Similar Threads
Thread Thread Starter Forum Replies Last Post
error: unknown filesystem grub rescue > archp2008 Linux - Laptop and Netbook 2 03-10-2013 12:37 PM
error: unknown filesystem grub rescue cike_assassin Linux - Newbie 2 07-11-2012 05:07 AM
error: unknown filesystem, grub rescue > (Again) mag7417 Linux - Newbie 4 06-02-2011 05:52 AM
[SOLVED] error: unknown filesystem. grub rescue> cynwied Linux - Newbie 10 06-01-2011 10:29 AM
error: unknown filesystem grub rescue devrajlp Linux - Newbie 2 04-12-2011 09:41 PM


All times are GMT -5. The time now is 11:08 PM.

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