I always prefer to have multiple installations. Currently I was running Windows 8 in parallel with Windows 7 and Ubuntu. Yesterday, I faced a horrible issue. I accidentally deleted volume for my Ubuntu installation and when rebooted… BOOM!! The unknown file system, grub rescue message was there to welcome me.

Now the problem becomes more critical as my DVD-ROM also stopped working atm. This issue can be fixed easily with the help of a Windows setup and running start up repair, but in my case it can’t be applied. I only have a Windows 8 Release Preview iso image with me along with my USB drive.

After struggling with my laptop, I finally solved the issue. The method will help you to solve the problem without repairing the boot manager. Here are some useful steps that I followed and hope they will work for you.

1. Make a bootable USB drive with any Windows iso setup. This can be done utilizing simple steps of this article.

2. Now plug in the USB drive into laptop and boot it. Press F9 for boot menu options.

3. Now select USB hard drive from boot menu options.

4. That’s it. Now setup will prompt to installation of Windows with encountering any issues.

5. Choose that location drive, where Ubuntu was installed previously. Once Windows will complete installation, it will fix the error significantly.

So the conclusion is that, Windows installation overrides and we got a fix up….. :)

See Also

• [How To] Retrieve Lost Boot Manager In Windows

• [How To] Fix Error “0xc000000f – The Boot Selection Failed Because A Required Device Is Inaccessible”

• [How To] Access Safe Mode & Add / Remove Safe Boot Option On Windows 8 Consumer Preview Boot Manager

This article was posted in "Linux, Troubleshooting, Windows 7, Windows 8'' section by Kapil Arya.
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4 Comments

1. FASFJV

   Can u able to fix it via Windows XP setup??

2. Alicia

   I’can make a booted xp USB, will it work to fix 7 boot mgr. Thanks gr8 tip though

3. Kapil Arya

   ^^ It will also workup… The basic complication is to repair boot manager.

4. Chadwick

   I can use ls . . . making me think unix from my FreeBSD use.

   grub rescue> ls
   (hd0) (hd0,5) (hd0,1) (hd1) (hd1,5) (hd1,4) (hd1,3) (hd1,1)
   grub rescue>
   grub rescue> ls (hd0,1)/boot
   ./ ../ System.map-2.6.28-11-generic abi-2.6.28-11-generic confi
   g-2.6.28-11-generic memtest+.bin vmcoreinfo-2.6.28-11-generic
   vmlinuz-2.6.28-11-generic grub/ initrd.img-2.6.28-11-generic
   grub rescue>

   and going into grub/ directory . . .

   grub rescue> ls (hd0,1)/boot/grub
   ./ ../ device.map stage1 stage2 e2fs_stage1_5 fat_stage1_5 jfs_
   stage1_5 minix_s
   tage1_5 reiserfs_stage1_5 xfs_stage1_5 default installed-versio
   n menu.lst
   grub rescue>

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