5

Grub rescue problem after installing Ubuntu 12.04 LTS

view full story
linux-howto

http://askubuntu.com – I have dual boot with Window 7 And Ubuntu 11.10. Yesterday i tired installing Ubuntu 12.04 LTS , by Manually removing all Ubuntu 11.10 partitions, creating new partitions and installing Ubuntu 12.04 LTS, But then i got this error. error: unknown filesystem grub rescue > The thing is when i let Ubuntu do partitioning for me it solves the problem, But i always do my own partitioning and it was working with me before, what had changed in Ubuntu 12.04 LTS? I have both windows 7 And Ubuntu 12.04LTS on same Hard Drive, And the Partitions for Ubuntu that i have are : / /boot swap /home I (HowTos)

funckax's picture
Submitted by funckax on 04/29/2012 – Made popular on 04/29/2012

Stories similar to Grub rescue problem after installing Ubuntu 12.04 LTS

Hi, I recently decided that I want to run a dual boot of Ubuntu 9.10 (main) and Winblows XP (games).

Boot windows from grub 30 weeks 5 days ago

I had Windows 7 and Ubuntu on my hard disk. I had installed Ubuntu using Wubi. To uninstall Ubuntu I deleted the Ubuntu partitions from Windows 7 Disk Management. When I re-boot my computer it shows grub rescue>. What do I need to do to re-gain access to Windows? I do not have a Windows 7 DVD. Commands like rootnoverify, chainloader do not work in grub rescue. I get an unknown command error.

I installed Ubuntu successfully by using acpi=off and nolapic. When I booted into the installed operating system all that the screen showed was several multi colored bars(This must have been my 10,000th installation attempt.)

I decided to get rid of Ubuntu by simply deleting the partition and re partitioning it as a blank drive.

So I have 2 hard drives a HDD 320GB and a SSD 20GB. Before I had Windows 7 on the HDD and Ubuntu on the SSD but wanted to get rid of windows and reinstall a clean Ubuntu on the SSD then use the HDD for storage.

So I deleted everything from the HDD and set up the SSD with 18GB ext4 and 2GB Swap and installed Ubuntu on the 18GB ext4.

I had only ubuntu installed on my pc, but I felt like adding another ubuntu (same version) partition so I could have one just for work/study and another one just for personal generic use.

This is my situation:

I Installed Ubuntu without a CD (using A USB) Dual boot installation (Windows 7+Ubuntu) I did not like the installation and decided to boot into Windows and delete the Linux partitions, but I forgot to fix the mbr from within Windows.

Now, when I boot, I am stuck in the GRUB rescue limbo.

How can I boot into Windows from GRUB rescue?

I cannot boot from CD because I don't

So, this is my first time installing Ubuntu on my hard drive, and I'm running into some problems.

Until a couple of hours ago, I had 4 partitions in my hard drive: XP, Vista and 7 installations, plus a data partition.

Unknown filesystem error 31 weeks 3 days ago

My computer has (had) a dual boot of Ubuntu Precise and Windows 7. Recently, when I started the computer, grub gave me an error saying "Unknown filesystem", and sent me to grub rescue. I searched for solutions to this, and found this answer: Unknown filesystem error: grub rescue.

[ubuntu] Windows 7 Wont boot 1 year 14 weeks ago

So, im completely new to ubuntu and I just wanted to try it out. So i set up a dual boot with windows 7 and ubuntu, and ubuntu works fine. Yet, when i try to boot windows 7, it gives me the error "unknown filesystem" with grub rescue under that.