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-   -   grub unknown filesystem error (

ariharan 08-27-2012 11:44 AM

grub unknown filesystem error
i hav a lap with dual os windows 7 and linux.
i delleted the partition containing linux from windows system when i boot i get a grub unknown file system error.
and i dont hav a cd/dvd drive in my lap.can i repair using my pen driv?.

plz help.thank u.

spiky0011 08-27-2012 11:47 AM


It would help to know more about the linux systems that you have installed and on pen drive.

Also no need to duplicate post

yancek 08-27-2012 12:43 PM

What you did was delete the larger part of the boot files for your Linux distribution. Which Linux distribution were you using? Do you want to install another distribution of Linux or reinstall what you previously had? Do you get the error message when you select to boot your Linux from the Grub menu? are you able to boot windows? If you have a windows installation CD/DVD you can select repair when you boot it to fix the mbr to boot windows. If you want to install/reinstall Linux, you can use unetbootin to put a Live CD on a flash drive. Go to the link below and download it. You can do it from windows so select the correct version to download. You didn't actually say whether you can boot anything so...?

edbarx 08-27-2012 12:51 PM

I must suppose the error message is from GRUB's primary bootloader which is still installed. As indicated you can use a Windows' repair disk to restore the Windows bootloader. This means you have no need to reinstall Windows.

The suggestion about trying to boot from a USB live CD image can be your salvation. If I were in your situation I would definitely try it.

bigrigdriver 08-27-2012 12:53 PM


another problem is i dont hav a cd/dvd drive in my lap.can anyone please help me to solve this by booting from my pen drive.
Assuming you have a bootable Linux on the pen drive,
1) with the laptop turned off, plug in the pen drive.
2) turn on the laptop and edit the BIOS boot menu to poll the removable drive for a bootable OS before polling the hard drive.
3) save and quit the BIOS.
4) it should boot the Linux on the pen drive.
5) once Linux is up and running, you can then recreate the Linux partition and reinstall Linux in that's what you want to do.

Otherwise, you will need to repair the MBR to boot into windows. Without a cd drive and windows recovery disk, I don't know how you would go about doing that.

ariharan 08-28-2012 12:43 AM

Hi spiky0011
Sorry i dunno about the linux system installed.It was installed when i bought i dont use it much.I m trying to do the version check as u advised i will post once i m done.

It is sufficient to get my windows running as i dont use linux much.thank u

pan64 08-28-2012 12:51 AM

you would need to overwrite the MBR from windows. google "how to write MBR windows 7" for solutions

ariharan 08-28-2012 07:14 AM

can some one tell me how to get my windows to boot.cant i repair the mbr with windows 7 boot usb and then solve the problem?

colucix 08-28-2012 09:31 AM

Moderator note: answers given to your other (duplicate) thread have been merged here. Please, don't submit duplicate threads in the future: if you want to delete or change the title of a thread of yours, you may send a report and kindly ask a moderator to take action to deal with the problem. If you want to change only the content of one of your posts, you may edit it at your pleasure. See the REPORT and EDIT buttons (together with QUOTE) in the lower-right corner of your posts. Thank you in advance.

yancek 08-28-2012 09:39 AM

Check the link below. It is a windows 7 forum for your windows problem and it does have one solution if you have your windows 7 disk. If you don't you may need to google to find some disk you can download to use.

ariharan 08-29-2012 05:46 AM

i downloaded a windows recovery.iso and used a software called refus to boot from my pen drive and fixed the mbr.Now my system boots into windows directly.thank u every one

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