Ubuntu :: Grub Uninstalled After Installing Windows
May 27, 2010
I have updated my Windows from Vista to 7. I knew that this would mess up my GRUB so that it wouldn't show on boot. However, it seems as if my GRUB has uninstalled.
I have tried to reinstall it with a Live CD but this didn't work. Maybe I was doing something wrong. I'm sorry if I'm asking a question that has already been posted but I could only find ways to make your GRUB reappear, not reinstall it.
I'm stuck with Windows 7 for a week or two now and I really want to get back to using Ubuntu!
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Aug 5, 2011
I installed Fedora 15 alongside Ubuntu, only to discover that it doesn't play nice with Ubuntu and this means that even though I formatted the Fedora Partition and made it into a new one, (i needed around a 7gb space for video editing files etc, so it is optimised for this). Anyway, that's off topic. Even though all traces of Fedora are gone, everyone time I go to boot from the HardDrive, it goes into Fedora's starting screen (the blue one with the loading icon) and then says it failed and gives a little command line.
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Jul 22, 2010
I love mac. Ubuntu will never live up to mac.
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Aug 30, 2010
As I attempted to uninstall an MP3 decoder through the command line, I may have also uninstalled the boot loader to Fedora 13. I entered the command to uninstall the program as su - , left for a second, and upon my return I noticed a lot of things were being uninstalled. After canceling the process I turned of my computer and now when I try to start it, my computer freezes after the Fedora icon appears on the blue screen. After looking through the online manuals, I think I uninstalled the GRUB boot loader. I've been trying to reinstall it through the image on the DVD, but it keeps getting stuck on the blue screen. I use a Toshiba satellite with no partitions.
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Jul 11, 2010
I just (basically) completely uninstalled my OS by accident. In synaptic package manager I selected to completely remove volume control (which had been going haywire for god knows what reason) with intent to immediately reinstall. I didn't put 2 and 2 together when it said it'd remove all related files including the kernel... hal... restricted drivers... everything got uninstalled. Network manager crashed...
I decided to try my luck with restarting (what was left) of the system. Now I'm looking at a boot screen of:
loading grub...
error 15: file not found.
Did I have to just make a boot disc and reinstall the os? or can I just "put the pieces back together" as it were and reinstall with a 'sudo aptitude update' once I get network up again?
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Feb 2, 2011
I was dual-booting XP and Ubuntu 10.10 for a while, but as I never used Ubuntu it was just taking up space, so I figured I'd get rid of it. I used a partitioning tool from inside XP to remove the Ubuntu partition, forgetting that I used GRUB2 every time I booted to select which OS to load. Now when I start my computer I get stuck at the "grub rescue>" screen.After searching for solutions to this problem all of them said to either use the Windows XP CD to fix the Master Boot Record or reinstall Ubuntu, but I dont have my XP CD and there isnt enough room on my hard drive anymore for a Ubuntu install. Is there anything else I can do to fix this?
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Aug 30, 2011
I installed the Ubuntu 11.04 inside of Win 7 via Wubi. It works great and I don't want to reinstall it again, now I want to reinstall my Win 7, is there a way to keep Ubuntu?
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May 14, 2010
I'm thinking about upgrading my Windows Vista to Windows 7. I rarely ever use it but I figured that when I do have to use it I would rather use Windows 7.
Will it mess up Ubuntu or GRUB when I do this? Like GRUB not recognizing Ubuntu any more? I don't really know but I just wanted to ask this here just in case.
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Jun 10, 2010
I have my system set up to dual boot Ubuntu 9.10 Karmic Koala and Windows XP Pro, using GRUB 2 (1.97~beta4) as the boot loader. I want to remove Ubuntu and GRUB 2 from the system and install Windows 7 in a dual boot environment with Windows XP. My concern is to be sure that in the process of removing Ubuntu I do not make my system unbootable by removing or otherwise screwing up GRUB without replacing it with the Windows boot loader.
I read a suggestion saying that the most straightforward way to do what I want is to simply install Windows 7 and, during the install process, select my current Ubuntu ext3 partition as the Windows 7 system partition. The suggestion said the Windows 7 install process would overwrite the MBR with the Windows boot loader, effectively uninstalling GRUB 2. The Windows boot loader will find the existing XP installation and give me a choice between Windows 7 and XP at boot time. Does that scenario sound right? Would it work the way I have described it? (I know I would no longer have Ubuntu. That is OK; I intend to reinstall it later.)
For what it is worth, here is my current partition layout:
/dev/hda - 320 GiB internal hard drive
/dev/hda1 - 37.26 GiB ntfs boot (Windows XP)
/dev/hda2 - 18.63 GiB ext3 (Ubuntu 9.10 /root)
/dev/hda3 - 1.69 GiB linux-swap
/dev/hda4 - 240.51 GiB extended
[Code]...
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Jul 5, 2009
I had to install windows for my sister, and I had a 20gb partition there for backup ( /data/ ), and well, that's where I was going for. After reformatting and installing Windows, I try restoring grub and this is what I get:
Code: grub> root (hd0,5)
grub> setup (hd0)
Checking if "/boot/grub/stage1" exists... yes
[code]...
Probing devices to guess BIOS drives. This may take a long time. /dev/hda: Not found or not a block device. Searching for an alternative way to install it, I found that if I 'installed' Ubuntu over my Ubuntu partition, it would automatically restore grub. But when I get to the partition tables, I get a message saying that "The computer has no operating systems on it" and it considers my hard drive as empty.
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Jun 9, 2010
I need some help getting GRUB back after re-installing Windows. Now I don't have access to my ubuntu partition and the installation disk
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Nov 29, 2010
I installed in ubuntu 10.04 in my laptop
yesterday i needed windows and had to install it
so right no am unable to boot in ubuntu without my live cd
when i was installing ubuntu eather unchaked to install the bootloader or i installed it not on partition but starit on the drive on the /sda
am able to boot in my ubuntu with the live cd by typing in parameter :grub.
i really need grub boot loader in this computer to be able to chose to boot in windows or ubuntu
i tried couple of instructions and always goat some headache.
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Jul 8, 2009
I am completely new to Linux as of today.I finally took the plunge and downloaded and installed Ubuntu 8.04 on my Windows XP computer (dual boot), using the Ubuntu installation wizard to "make room" on my hard drive for Ubuntu by creating a separate partition. The installation finished successfully and Linux boots just fine, but Windows XP will no longer boot at all.
I have read many threads on this and other sites, giving advice of how to correct this problem. I am not at all experienced in editing and working with different ways of booting (other than Windows default). But after some frustration, I located (according to the threads) a couple places to try making changes to the boot commands and I tried various lists that were suggested. Before I changed anything, the Windows XP boot screen would appear and then it would revert right back to Grub.
[code]....
what drive number Ubuntu and/or Grub installed to, or assigned to the Windows partition, and I have no idea how to find out. I do not have a Windows XP installation CD (it came pre-installed on my computer), so I CANNOT wipe out that partition and simply reinstall it--I MUST be able to fix the problem without harming Windows!!! I also have data in the Windows partition that I don't want to lose. I could possibly uninstall and reinstall Ubuntu (as I saw suggested somewhere online), but I have not the slightest clue how to accomplish that task--and WHAT IF it didn't work?
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Aug 29, 2009
I have 2 hard disks. In the first one, I have installed Archlinux, with GRUB. The second one is empty. I have a Windows XP .iso file. Is it possible to install Windows XP in the second hd, without having to burn the ISO file? I don't have got any CD recorder/reader.
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Sep 22, 2009
I am using windows XP.I wish to install GRUB bootloader so that I can modify menu.lst & add lines to boot from an ext2 partition having iso of linux distro.One way is to use live cd & try 'sudo grub-install <device>' but I don't have live cd.I came to know about open source software 'wingrub' but I am not able to understand how to use it even after reading [URL] what should I do to install GRUB in mbr & have option to boot to c drive which has windows & another partition (/dev/sda2) which has linux.
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May 21, 2010
I am pretty new to ubuntu, and not sure if this question has been solved by anyone, I tried search this forum, but didn't find enough information. The closest thread I found here was this one:[URL].. Here is my situation, I have installed Ubuntu 9.04 a few days ago with an old Live CD, after running it pretty well, I upgraded it to 9.10 with the online update tool. (I guess this makes sure I was using Grub 1, the legacy Grub). After updated to 9.10, I installed a Windows XP on my hard drive, obviously, it wiped off my Grub from the MBR. So I tried to restore the Grub back to the MBR, but failed, please see below:I first run the fdisk
Code:
ubuntu@ubuntu:~$ sudo fdisk -l
omitting empty partition (5)
Disk /dev/sda: 500.1 GB, 500107862016 bytes
255 heads, 63 sectors/track, 60801 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes
[Code]...
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Aug 16, 2015
I have 2 HDDs, and under linux, sda is ntfs, sdb is ext4 of debian jessie, the booting order is sdb ( it contains the grub on sdb's MBR) then sda, the windows boot loader on its own MBR.
The sda was win8, but now just formatted it and did a fresh installation of win10. After power off PC and plug the sdb up again. Turn on the power, setup the booting prior as same as above, but, the grub can not realize the windows 10 boot sector, error message is: no such device /dev/sda1... (and following a digit array) 8xxxxxxxxxxxx....
How to config grub in order to make it can dual boot both Operating System?
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Dec 20, 2009
I have windows and I installed fedora 12 on a separate partition.
However, I had a problem with my windows XP SP 3 and had to install windows. Which I did on my C drive. However, when I re-boot I on longer get the GRUB loader displayed so cannot boot into fedora.
Is there anything I can do?
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Dec 26, 2009
have an Intel Core2 Duo system that would dual boot via GRUB between Windows Vista and Fedora 10. I recently attempted to upgrade from Vista to Windows 7, however because the version of Vista I had would not upgrade to Windows7. This has removed the ability to boot into my Fedora 10 installation. After some brief research on the Internet, I created a Live CD of Fedora 12, and booted into that. Accessing the terminal I tried typing:
[liveuser@localhost ~]$ su root
[root@localhost liveuser]# grub
Probing devices to guess BIOS drives. This may take a long time.
GNU GRUB version 0.97 (640K lower / 3072K upper memory)
[ Minimal BASH-like line editing is supported. For the first word, TAB
[code]....
Error 15: File not found
What is needed so I can restore GRUB on my system and boot into Fedora again?`
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Sep 1, 2010
I had two OS in laptop windows vista and linux mint and when I used to start my computer I used to get different option for os like linux mint, linux mint memory check, windows vista etc.. but because of virus windows vista got crashed so I formatted disk drive C: which were containing windows vista and reinstalled fresh copy of vista.. but now when I start my computer vista start automatically, I do not see GRUB options to run windows os or linux mint..Is there a way to reinstall GRUB to get options like I used to get before formatting ?
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Jan 11, 2010
Since CloneZilla doesn't include the MBR when saving a partition into a file, I need to take care of this myself. With a working XP in /sda1, I'd like to...
1. Boot with a Linux live CD
2. replace the Windows MBR with Grub, ie. without any Linux already installed
3. save Grub's configuration files into /sda2 (which is ext2fs-formatted)
4. add XP to Grub
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Feb 21, 2010
My computer initially had one hard drive, with Debian Lenny 5.0.4 installed. I haven't done any special configuration, so upon boot, I was presented with the GRUB kernel select menu, then gdm, etc. I think I used the Debian installer's 'use entire drive with LVM' configuration.
I then added a second hard drive, with the intention of installing Windows XP on it. After I installed XP on this second drive, I found out that it had overwritten the MBR on the first drive. (It was my intention do use the BIOS' F8-key boot menu to choose between the two drives, each with their own distinct boot loader. The two drives and OS's would be completely independent.)
Using my Debian installer CD, I think I have GRUB installed on the first drive again. I've found a number of tutorials which say I can use 'set' and 'linux' to boot the system, but the linux command always returns a file not found error.
I think my LVM filesystem is still intact, as the Debian installer's fdisk reports it, it can also chroot to it and my installation appears to be intact. 'ls' within GRUB shows (derek-swap_1) (derek-root) (hd0) (hd0,1) (hd0,2) (hd1) (hd1,1) (fd0) . 'derek' was the hostname I used.
I would like to simply restore the system to the way it was before: with the standard GRUB that comes with Debian 5.0.4, which then boots into the debian with my LVM filesystem. Is there a way to do this from the Debian installer CD? (I was hoping there would be a 'dummy install' command which would install GRUB and configure it properly, but leave all my existing partitions and filesystems intact.)
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Mar 21, 2011
This is a problem when Windows is running some malware that cannot be removed, which happens all the time. The problem is all the new hardware or specialized hardware will not work on Linux so Windows is the only choice. I would think the latest versions of Linux would have this problem worked out by now. I installed 11.3 one week ago, only to find that the repair option in the install menu no longer exists so don't bother uses this link to reload the GRUB HowTo Boot into openSUSE when it won't Boot from the Grub Code on the Hard Drive. I also tried this link Re-Install Grub Quickly with Parted Magic which does not work either. On step 2 typing grub returns the error message "grub command not found". You can use GRUB if you boot the install DVD and select Rescue Boot. However when you type find /boot/grub/menu.lst the error message "file not found" is returned.
I did the following to restore my GRUB boot record. Boot the install DVD and select the update option during installation. Change all the repositories to enable except the NVIDIA repository, it is not responding at this time. When the system comes up go into Yast and open the boot loader. It should have your original boot menu in memory. Change the default to another option and re-write the MBR. This will write a new MBR using the original data updated with your new default. Re-boot and then change your default back. I am just a NewBe so this may not be exactly correct but I hope it saves someone like me some time fixing a MBR re-writing by the Windows installer.
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May 28, 2010
I recently replaced a failed graphics card w/ a GT 240. Next thing I know, Fedora 11 won't boot up properly. I guess it was a driver issue. I can tell you I went about fixing it all wrong because I wiped the FC11 partition (intending to install FC13) and now I can't boot anything up. My system consists of: sda1 vista, sdb1 XP, sdb5 extended, sdb6 Fedora. I thought grub was on the fedora partition, but reinstalling fedora with grub on that partition didn't fix the boot up problem. Do I need to replace the windows boot loader on sda1 with grub when installing fedora?
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Jan 3, 2010
I'm just slightly confused here, but... what the? Why does installing grub-doc remove BOTH grub-pc, and grub-common? So basically it seems like by installing grub-doc, I have uninstalled grub totally (yes, it is still there as the bootloader, but i have no way of updating it now!) from my system. What's the conflict between grub-doc and grub-pc, such that grub-pc has to be removed?
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Sep 5, 2010
I have installed Windows 7 on my laptop . Now, it directly boot from Windows 7 . I think the MBR overwrote my grub . I have found two methods by google , but still does work .
1: boot from debian install CD, Alt +F2 switch to the console. "grub " "root (hd0,0)" "setup (hd0,0)".
2:boot from CD, mount /dev/scsi/host0/bus0/target0/lun0/part1 /mnt ; chroot /mnt ; grub-install /dev/sda.
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Dec 20, 2010
I've been using Linux for over a decade, so no need to worry about the obvious. I'm positive that I have my partitions/install correct. What has me baffled is that Fedora 14, which uses GRUB 0.97 (GRUB legacy) - boots Windows flawlessly every single time on the same hardware, but Ubuntu's (or the upstream Debian's) GRUB legacy do not - even though they are based on the same upstream code from the GNU Savannah servers.
No matter what I've tried I cannot get the Debian or Ubuntu version of GRUB/GRUB-legacy to boot any recent Windows 64 beyond XP (Vista or 7). All that it does is resets the computer when Windows attempts to boot, without an error. GRUB is notoriously difficult to compile, so before I try to compile code from RedHat's archives - any thoughts,experiences, similar issues - whatever?
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Nov 1, 2010
I got ubuntu 10.04 lucid lynx along with windows (dual boot) and using Grub. On my computer, I have my C:/ (programs) and D:/ (data). I've never used my D:/ before that day that I've lost my windows partition on my grub menu. I usually use my D:/ with windows. The first time I used my D:/ to store data with linux, I lost my windows option in my grub menu. I'm not sure what I did wrong but I do want to restore my windows option in my grub menu.
After "fdisk -l",
I checked in /boot/grub and there is no menu.lst to modify. how I can get back my windows option in my grub menu ?
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Apr 22, 2010
installed windows 7..then tried restoring grub using live cd....mounted partition somewhere else....then installed ubuntu again where it was installed previously and now grub is not detecting windows 7 but i am able use my windows files
used sudo update-grub2.
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Aug 24, 2010
I had to dual boot my computer again with windows unfortunately for school. This is something I've dealt with dozens of times in the past but when I try to recover grub 2 with the ubuntu live cd I get this:
sudo grub
sudo: grub: command not found
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