Red Hat / Fedora :: Grub Is Corrupted - Does Not Display The List Of Of Bootable OS Options Anymore

Nov 28, 2010

I have a PC with three partitions: C, D, E. The C: and D: partition are NTFS and C: has Windows XP on it. D: holds my data files and folders in the Windows environment. E: has CentOS version 5.x. The machine is dual bootable. When booting up Grub gave me the options to boot to CentOS (by default) or to boot into Win XP (by selecting it).

Recently I used Partition Magic to resize the D: partition. I shrank the D: partition. The freed space space was then used to create a new NTFS partition.

After the partitioning was completed, I rebooted the machine. But now Grub is having a problem. It does not display the list of of bootable OS options any more. Instead there is just a black screen with the prompt:


What am I supposed to do here?

I am afraid that after I ran Partition Magic somehow Grub is messed up. How do I recover the previous boot options? Or at the minimum, how do I make the the machine to boot into Windows XP?

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Ubuntu :: GRUB Does Not Show List Of OS Anymore

Apr 19, 2010

I have been using Ubuntu for a few days and it keeps on surprising me: This morning when I turned my pc on instead of displaying list of available OS versions GRUB just prints out "[ Minimal BASH-like line...." and console with prefix "sh:grub>". Why is the list gone and how can I get it back?

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Aug 15, 2010

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OS: debian

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Ubuntu :: Can't Boot Anymore, Filesystem Seems Corrupted?

Jan 2, 2011

I've searched the internet all over, but somehow I didn't find a solution (I REALLY hope there is one :/). Of course I might have missed something, I found a lot of similar, but not quite identical problems.Today, when I tried to start up my system I was quite shocked, as my Ubuntu 10.10 didn't boot. The error I got was "No init found. Try passing init=bootarg".I didn't have any problems booting Windows XP, which I had installed alongside Ubuntu, so I burned a Live CD and tried to find out what was the matter.

As it appears, my Linux partition (/dev/sda5) is broken. I can't access it via Nautilus, as I always get a "A job is pending on /dev/sda5" error. Mounting it via terminal doesn't seem to work either.When trying to check the filesystem, either in Disk Utility or in GParted, I instantly get an error that the "device is busy" and (again) that "a job is pending".I tried to set a boot flag on /dev/sda5 (it wasn't there before), but this didn't help neither with accessing the partition from the Live CD norI tried to run the boot info script I found somewhere in a forum post, but it is just hanging itself up as soon as it starts checking /dev/sda5.

And "sudo mke2fs -n /dev/sda5" just gives me a "/dev/sda5 is apparently in use by the system" error.By the way I did all these steps just byollowing advices in other threads, so I do not necessarily understand what I did there.e .. is there a way I can get my files back? I would really, really hate having lost all that since my last backup is 3-4 months old (yeah, yeah, I know) and I have some quite rtant data on that filesystem.While there seems to be a big problem in that NOTHING seems to be working, GParted still recognizes the partition and how much of the disk space is in use .. so not everything can be lost - or am I wrong?

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Fedora :: XP Not Booting Anymore - Grub Started

Oct 3, 2010

I recently installed Fedora as dual boot with XP on my netbook, but then decided to uninstall it again. I probably did it in the wrong way because everything is messed up. I installed Fedora in a separate partition, so I just deleted that partition. Now when I rebooted my netbook, it starts GRUB.

I get some sort of command prompt like cmd.
grub> {here I can type commands}

I tried several stuff to get everything normal again. First I made a bootable USB which starts the XP Recovery console. Then I used these commands :


I reboot, and there it is again ... the GRUB. How can I get Windows XP working again? I didn't touch the C: boot partition, so the XP installation should still be intact.

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Jul 15, 2010

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Fedora :: Can't Boot Windows Anymore - Grub Only Lists

Jul 25, 2010

I'm using a dual boot system with Fedora and Windows XP. Until a few days ago i could boot in Windows or Linux choosing the option during boot. I have updated Fedora with common updates these days and now i can't boot in Windows anymore, because there are no entry for it anymore to the boot menu.

The graphical boot configuration tool (i'm using Gnome) only lists three different kernel for Fedora but any entry for a Windows partition. Here is how my disk appears:

I'd like to know why this occur and, mostly, which is the most easy way to restore the dual boot

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Jul 8, 2011

I am running the RedHat 7.3 install off a CD to put the system on an IDE flash drive. The flash drive appears as /sda1 on my system during installation. When I install the bootloader from the install CD it gives me the option of MBR on /hda which I do not want do. I select /sda1 and it puts the bootloader on first boot sector (not the MBR?) Although the installation works, is what I am doing creating a bootable primary hard drive? The flash IDE drive needs to be installed in an embedded system so my installation options are very limited i.e. the system does not have a CD-ROM or floppy to boot from. Are there options to put GRUB on the MBR of /sda1 during installation? Such as, with fdisk or the "force disk primary" option? Or, doesn't it matter?

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Fedora :: Data Corruption - Grub Didn't Work Anymore

Mar 7, 2011

If you typed it in, my fdisk -l looks like this


I partitioned it using the Acronis (proprietary) partitioning software. I've had to move these around a bit when I initially set it up and at one point grub didnt work anymore. It was after I had to expand my Windows (7) partition. However I'm told that most modern software dont use the same unit of measurement that fdisk still uses 'til this day. Should I even be concerned? I did have to reinstall grub after I initial set all my partitions up. This post is merely a double-check to make sure.

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Mar 31, 2010

i am running windows and fedora 12..both are working when i switch on the laptop in morning i discovered that it automatically start windows..when again i restart does not give any option to me for selecting which OS to run..i have seen grub.conf file it is right...i have done is booting can i boot to fedora 12 without reinstalling.

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Sep 5, 2011

When i boot my PC, i get this in my Fedora 16 distro. I have tried as following but none allowing me to boot anymore.

Grub loading.Welcome to GRUB!

error: file not found. Entering rescue mode...

grub rescue>
grub rescue> ls
(hd0) (hd0,gpt3) (hd0,gpt2) (hd0,gpt1)
grub rescue> ls (hd0,gpt2)/
./ ../ lost+found/ memtest86+-4.20 grub2/ config grub/ vmlinuz- elf-memtest86+-4.20 initramfs- initramfs- System.mpa- config- vmlinuz-

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Jan 26, 2010

I am preparing for RHCE. While doing the lab I renamed /etc/grub/grub.conf as grub1.conf. Now (obviously) system boots on grub> prompt. Can I recover without using a bootable CD? Another problem that I encountered was, while doing lab for fdisk, I used command umount -al. Now, fdisk -l is not listing the partitions but giving a message:- /proc/partitions does not exist. If I reboot the system this is restored.

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Jan 9, 2010

My display settings seem to have been corrupted after I upgraded from 9.04 to 9.10. I can only view my screen in 1280 x 1024 - no other resolutions work. Ubuntu is also not detecting my monitor, a Dell E193FP (19"). In reading some other posts, I see that the first question will be to post my xorg file, which follows.

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Aug 30, 2010

New machine with an ATI 5770, with a fresh install of Ubuntu 10.04 (lucid, 64-bit). What a mess! As reported elsewhere, the initial install sometimes came up with a black screen, or corrupted displays, different each time. After several retries, I had a display that was corrupted but barely readable. The installed Ubuntu booted, but also had a corrupted display, just barely readable. I was just able to make out the hint that I should use the proprietary drivers, so I booted into safe mode and enabled them. Afterward, the display came up correctly.

This is ok for me, as a long-time Ubuntu user. But it really is like a trip back to the bad-old-days of Linux: you really cannot expect anyone but a geek to get through this. And the is the LTS version of Ubuntu? I use two monitors, to provide a double-wide single desktop. When I log in, the second monitor displays random noise, and is entirely unusable. I have to use System-Preferences-Monitors to switch the second display off, then switch it back on, and then everything works fine.

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Feb 1, 2011

Recently I am trying to install the latest Ubuntu / Xubuntu but after the kernel messages the display becomes corrupted. The machine is a Clevo laptop with the dreaded SIS 671 / 672 chipset. The Ubuntu 8.04 is working flawlessly. Any other version I get several problems and depending on the mood of the system I get a vertical running display ( not readable ) or a left horizontal displaced screen (readable) ...

I tried more tan several CDs ranging from 9.01 to 10.10 both Ubuntu or Xubuntu. What is the plainest (simpler ) VGA mode in order to install it? I have tried vga=normal and even VGA =3 with no success. With the latest Ubuntu 10.10 I get another problem it simply does not recognize the HDD / SSD. I have traced the SSD problem with the sata_sis module in kernel 2.6.35 and up... Other distros have the same problem ...

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Apr 27, 2010

I have a Samba server running in my Lan (mainly for file and print service). This server will act as a PDC (don't ask why...). I have a question: Under a share I can use the "read list" and "write list" options with groups (eg @users). Is that group a Linux or Samba group? If it's the later, am I forced to use the net groupmap command, or it is sufficient to have a group name in the /etc/group file? Should I add samba/linux users to that group (with net rpc) or is sufficient to have the group membership set in the linux?

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Jul 20, 2010

After installing latest Firefox on my new PC and importing bookmarks from old PC, none of my bookmarks in the pull down table have individual icons as seen on the navigation bar- just the 'blank page' icon. I've deleted bookmarks,navigated to the page and bookmarked it again,but still the blank page icon. Have re-installed Firefox but still no joy.

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Nov 1, 2010

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Jun 4, 2011

I have a fresh install OpenSuSE 11.4 installation. I have install Apache 2 ,I have change the content on the owner and group to chown wwwrun.nobody Directory /srv/www/htdocs. Now apache cannot display the content anymore there is no error in the error_log. If I change the content to my user the content is displayed. Why and how can I fix this the permission are the same as on the previous web server and I'm using index.php as the index page..

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Mar 30, 2010

I have installed f14 in my laptop. The hard disk partitions are as follows


# fdisk -l
Disk /dev/sda: 320.1 GB, 320072933376 bytes
255 heads, 63 sectors/track, 38913 cylinders, total 625142448 sectors
Units = sectors of 1 * 512 = 512 bytes


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General :: Get Grub To List Ubuntu As Well As Fedora?

Jun 10, 2010

I now have a machine with Fedora, XP and Ubuntu on.

Now, I can boot XP and Fedora via grub, but I cannot see boot Ubuntu (the last partition on the disk).

How can I get grub to list Ubuntu as well as Fedora?

All have their own partition on the hard drive...

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Ubuntu Installation :: Corrupted Grub After Upgrade To 11.04?

Apr 9, 2011

Yesterday all my troubles seemed so far away, because I've been using working system with Windows 7 & Ubuntu 10.10, but last night I decided to update to 11.04 from update manager. So, when upgrade was done, I rebooted and saw something like this:

"grub_env_export not found
grub rescue > "

Do I have a problem with MBR? Will it help, if I load from Ubuntu live cd and try to reinstall grub?

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Ubuntu Servers :: List Options Available For Server Redundancy?

Jan 20, 2010

Can list options available for server redundancy? (i.e. fault tolerance methods so that if a server goes down another server can take over). Also is it possible to implement RAID1/disk mirroring across servers?

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Ubuntu Installation :: No List Of OS Options On Dual Boot?

Jun 28, 2011

I just installed a dual boot win7-Ubuntu 11.04. When I reboot, there is no list of OS options displayed, it just boots to windows. Below are the details of how I got to this point.I Used GParted to delete all partitions off a hardard drive. Then installed win7 from CD. Win7 works fine. Then I formated an ext4 partion and installed Ubuntu 11.04 from the iso CD. But on reboot I don't see a list of OS options. When I boot from the Ubuntu 11.04 CD, I can view the usual Unix directories in the hard drive Ubuntu root (bin, etc, lib, usr, var) and the /boot/grub directory. So Ubuntu looks like it got installed. What else can I trouble shoot to get the list of OS options displayed?

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Fedora :: Why GRUB Does Not Display Menu Based On Grub.conf/menu.lst

Jul 28, 2009

I am testing my crash recovery strategy for my linux system and I am having trouble with GRUB. I am basically restoring my backup (i.e. tar) unto a different hard drive, but I am having problems getting the machine to boot without me having to type the GRUB commands at the GRUB prompt that is presented when the machine boots up off the new hard drive. I have tried to restore the MBR in two ways (the 2nd one is the one that gets me to the GRUB prompt):

1. Get the MBR off the original drive and write it unto the new drive (all via dd), but that did not work at all: the machine hangs right away during boot up. It seems to hang right at the point where the BIOS tries to read the MBR.


On original drive:

# dd if=/dev/sda of=mbr+part.bin bs=512 count=1

On new drive (new drive is now in place of original drive):

# dd if=mbr+part.bin of=/dev/sda bs=1 count=446 conv=notrunc

2. By using the FEDORA rescue CD, I installed grub unto the new hard drive as follows:


# chroot /mnt/sysimage
# grub-install --root-directory=/boot hd0

reboot and remove FEDORA CD Using the 2nd option above, I get the GRUB> prompt during bootup. I can then boot into the system by issuing the commands that are in the menu.lst file, followed by the "boot" command. However, I would like for those commands to happen automatically, just like in the original configuration. It seems to me that GRUB is actually finding all its stage files because I doubt the GRUB program (the one displaying the prompt) fits entirely in the 446 bytes it has on the MBR. So, it must be loading its stage 2 (and stage 1.5??) files from my /boot partition. However, if GRUB is loading its stage files off the boot partition, why does it not load/read the menu.lst/grub.conf contained in the boot partition also?


# ls -l /boot
total 22888
-rw-r--r--. 1 root root 1274567 2009-05-27 16:39
-rw-r--r-- 1 root root 1274538 2009-06-16 22:27


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May 4, 2010

Upgraded to Lucid from Karmic last week or so, everything was fine. Today i needed to log into windows to set up some stuff, closed everything the ormal way, went to windows, came back and after Grub: Disaster! black screen, then corrupted graphics on top of the screen. Rebooted, same thing. Rebooted, went to recovery mode... same thing! No freaking idea whats going on, 9.10LiveCD works fine, but i have no idea whats going on.

My machine: ASUS N81V with ATI HD4670 graphics

Guess ill have to use windows for the time being... :S

Terrible Quality photo provided: [URL]

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Nov 8, 2010

I have a dual boot drive, one is WinXp the other Ubuntu 10.04. I don't know why, but my ubuntu partition became corrupted (booting from live cd and inputing fdisk -l in the terminal, shoes my partition as unknown type) My Grub was on this partition, and therefore I cannot boot neither one of my two OSs. I would like to recover my linux partition, I figure I can do that only from my WinXp partition, but I don't know where and how to install Grub.

Also, If anyone knows how I could recover from the live CD without booting Windows, please speak up, that would make everything much easier. Another thing, it would be just super if I could recover my whole partition, not just the data, because I would hate to reinstall all the stuff that I had on my Ubuntu.

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Dec 26, 2010

for some reason Win7 has gone and run a startup repair (there was two boot options in GRUB, perhaps I chose the wrong one by accident) which has corrupted my GRUB. Now, the only way I can get anything to run is by booting Ubuntu of a live-pendrive/flashdrive! I tried following a couple of walkthroughs that claimed to fix the problem; and I don't doubt that they work - on someone elses computer! I receive errors whenever I try to use things like 'sudo grub' and often (but not always) with 'mkdir' and 'mount' - and I have very little idea what some of them are doing (I gather 'mkdir' is making a directory and 'mount' is mounting a device virtually, but some others are a little harder to guess)

So, I am wondering if someone has a little insight as to how I can fix this and perhaps point me in the correct direction to learning about making my way around ubuntu and these fancy terminal commands! Currently, I am at the stage where I can boot into my flash drive by spamming escape before the bootloader. However, when GRUB loads it tells me there is an error and gives me a command line; through which I have been unable to get anything to happen. I am running Ubuntu 10.10, I believe, and Windows 7 on the same hard-disk and possibly the same partition (though, I am unsure of how Ubuntu works itself into partition's). I also ran a little code (seemed somewhat like a batchfile in windows) that made a txt file of my boot info; I'm attaching it below if that helps at all. Boot Info Results:


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Jul 20, 2009

KMail 1.11.4, KDE 4.2.4: I'm migrating from WinXP to Mandriva, and installed KMail at the weekend. Works fine, but I have a niggle - the message list displays headers grouped by month order. I'd like the option of having a simple list (no groups), and suspect that it could be done - but I haven't been able to find out how. I've checked in the Handbook without success, and a search in LQ hasn't turned up anything yet.Any suggestions gratefully received. If this isn't the right place for a KMail query,

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