Ubuntu Servers :: Grub Error On Hardware Raid 1 / Default Root Device Shows That Prefix=(hd0,1)/grub?

Apr 13, 2011

I'm currently setting up a dell server with hardware raid 1 on sas 6r. i got 4 sas installed on the server and configured to raid 1 as stated below,
array 1:
slot 0 & 1

array 2:
slot 2 & 3

during the installation, the installer detect the array 2 as sda and array 1 as sdb.. so i proceed with installation on array 2. after completed the installation, the first reboot lead me to a 'grub-rescue" prompt. by following the guide at url Mode, i've noticed that the boot folder has changed to (hd1,1), which i believe it has changed to sdb1. default root device shows that prefix=(hd0,1)/grub.

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CentOS 5 :: Servers, Within Grub, Root Shows (fd0)device.map = (hd0) /dev/sda And Nothing Else?

Oct 21, 2009

I just noticed, on both of my CentOS 5.3 servers, within grub, root shows (fd0)device.map = (hd0) /dev/sda and nothing else.

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Ubuntu Installation :: Error During GRUB Boot :: Gave Up Waiting For Root Device

Nov 30, 2010

just installed ubuntu 10.10 on my external usb hdd from my 8gb flash drive doing this on a laptop, my primary hdd (internal) is running windows (230gb of 250gb used) so i got an external hdd (2tb) and I decided to install ubuntu on it

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Ubuntu Installation :: Grub Rescue Mode - Error: Cannot Find A Device For /boot/grub (is /dev Mounted?)

Dec 16, 2010

I updated yesterday and now when I start my laptop it goes in to grub rescue mode. I have booted from a 'live cd' and thought I could repair grub from there. In gparted however the partition with ubuntu (sda1) is seen as unknown file system, in terminal when I list the partition table it shows up as FAT16 type. When I try a grub-install it gives this error message:

[Code]....

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Ubuntu :: Mdadm Raid + GRUB = Not Booting - Error: Unsupported RAID Version: 0.91

Jul 18, 2011

I have a raid5 on 10 disk, 750gb and it have worked fine with grub for a long time with ubuntu 10.04 lts. A couple of days ago I added a disk to the raid, growd it and then resized it.. BUT, I started the resize-process on a terminal on another computer, and after some time my girlfriend powered down that computer!
So the resize process cancelled in the middle and i couldn't acess any of the HDDs so I rebooted the server.

Now the problem, the system is not booting up, simple black with a blinking line. Used a rescue CD to boot it up, finised the resize-process and the raid seems to be working fine so I tried to boot normal again. Same problem. Rescue cd, updated grub, got several errors: error: unsupported RAID version: 0.91. I have tried to purge grub, grub-pc, grub commmon, removed /boot/grub and installed grub again. Same problem.

I have tried to erased mbr (# dd if=/dev/null of=/dev/sdX bs=446 count=1) on sda (ide disk, system), sdb (sata, new raid disk). Same problem. Removed and reinstalled ubuntu 11.04 and is now getting error: no such device: (hdd id). Again tried to reinstall grub on both sda and sdb, no luck. update-grub is still generating error about raid id 0.91 and is back on a blinking line on normal boot. When you'r resizeing a raid MDADM changed the ID from 0.90 to 0.91 to prevent something that happend happened. But since I have completed the resize-process MDADM have indeed changed the ID back to 0.90 on all disks.

I have also tried to follow a howto on a similar problem with a patch on [URL] But I cant compile, various error about dpkg. So my problem is, I cant get grub to work. It just gives me a blinking line and unsupported RAID version: 0.91.

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Ubuntu Installation :: Installing With Raid 0 - Grub: No Such Device

Jun 29, 2011

I have a raid 0 setup with 2 x 1TB drives. I have an ASUS P8P67 LE motherboard and am using Interl RST for the Raid setup. I'm utterly ignorant of raid and therefore forgive any mistakes... I already had windows 7 installed and was attempting to dual boot ubuntu.

I installed Ubuntu from CD. The raid was picked up properly as only one drive by ubuntu. So it picked up the windows MBR and the main windows partition. I resized the main partition and used the "install ubuntu and windows 7 side by side" option. Installation went fine but once I restarted the PC I was welcomed by a grub rescue screen with the message: "error: no such device e196.....". Edit: I used the Windows 7 disc to repair the windows bootloader so I can now boot into Windows 7.

Before doing so I used gparted on the live cd to check the partitions on the drives. The only ones present were the MBR and windows one. So ubuntu seemingly didn't install... Although GRUB did... I was advised by someone on the ubuntu IRC chat to avoid trying to reinstall ubuntu at that point just in case there was an error in the partitioning process. I've since checked the state of the partitions from within windows and there's the MBR partiton, the windows partiton AND the partition that I created for ubuntu... 965MB of the partition that I created is listed as used space as well...

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Ubuntu :: Remove Partition - Error - Grub Rescue Shows Up

Dec 25, 2010

in windows 7 i extended the partitioning to remove ubuntu but now when i try to log on i get an error and the grub rescue shows up

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Ubuntu Installation :: Grub And Root Device Missing - 64bit System

Sep 1, 2011

The problem after couple installations (10.10 --> 10.04 --> 10.10 --> 10.04-3) is that system goes to "busybox" after complaining about missing root device. I already have come to conclusion that this problem could be solved by telling the system that the root device is at sda1. However, I'm not able to start grub (by pressing "ESC") at boot before problems start. I'm able to start live-cd and I tried to install "over" the old one (same partitions without format, same username). No luck.

And in the busybox /proc/modules is empty for example. And the grub has worked with previous installations.

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OpenSUSE Install :: Restart System Some Times It Shows Grub Error As 17 Or 15

Jul 25, 2011

when i restart my system some times it shows grub error as 17 or 15 and in that situation used the dvd rescue mode and run the commands

e2fcsk -f /dev/sd1
e2fsck -b 9130 /dev/sda1

but no use any one that how to trouble shoot these grub errors tell me commands need to be run there.

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Ubuntu :: Error: No Such Device At GRUB

Feb 12, 2010

I am running a Windows 7/Karmic Koala Dualie. I was running Windows 7 first, Shrank Windows, partitioned the drive using the 40 free unallocated gigs of the 300 gig hard drive, and installed a fresh install of Karmic Koala to that. This has been working just fine (minus a few graphic driver issues) for the last week or so. Then wanting all my content to be available to both system and my network easily I decided to shrink the Windows 7 side, and use the 90 now free gigs to create a FAT32 Partition (using Partition Wizard after I had defragged the disk) The process runs fine, I boot back into Ubuntu where I have made my Windows 7 drive NTFS partition mount automatically, and I pull my videos and music to the new partition. At this point everything is going great till I fill the partition, and I decide to boot back into Windows to decide if I need to shrink windows to make the new partition any bigger. Well this time I go to GRUB hit windows and I get: Error: No Such Device: 01caab4e3c9fb9e0

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Ubuntu Servers :: /etc/default/grub File Does Not Exist?

Jun 10, 2011

Due to a motherboard issue, I need to edit a parameter in the "etc/default/grub" file.

However, the problem is, that file doesn't exist.

Grub does seem to be installed, I can get into grub from the command line etc.

This is a fresh install of Ubuntu Server - 10.04.2 LTS

Brand new box, no previous installs of anything, no other operating systems etc.

Is there somewhere else that file could reside ? I tried find -name '*grub*' and got plenty of files, but none are the one that I need.

Is there someway to generate this file ?

I remember when installing from the CD it asking about grub, but I don't recall which option I chose, it was whichever one was the default.

This thing won't reboot right after power loss etc until I can edit that value... which at the moment seems to not exist....

Btw, I'm not a total linux noob but far from an expert, so I may need any answers "dumbed down" a bit.

EDIT (more info):

It seems that I have regular "grub" and not "grub2" installed... I'm assuming that is part of the problem ?

My version: grub-install (GNU GRUB 0.97)

Does this version of grub allow you to edit options etc ?

Specifically, what I need to do, is edit this value: GRUB_CMDLINE_LINUX_DEFAULT

I need to add "reboot=a" to this line.

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Ubuntu Installation :: Grub:Error:No Such Device?

Jan 29, 2010

I'm using Kubuntu 9.10 with Ubuntu-desktop installed.I've been using kubuntu for sometime now but i dont know much technical things about it. I have two hard discs (160GB SATA and 80GB PATA).I have just installed Windows XP Professional and then reinstalled grub2 from a live CD. Both OS are on 80GB PATA drive.The Grub menu at boot time has "Windows XP Professional" entry in it. The problem is thatwhen i select that entry, i get an error saying:Quote:Grub:Error:No such device - "a string of letters and numbers"Press any key to continue...When i press any key, it goes back to the grub menu. Kubuntu and Ubuntu work fine.When i go to bios and change my hard disc boot order, grub is bypassed and Windows boots and works good. I dont know much technical things but i think maybe its the problem with Windows entry in grub. (something to do with lines map(hd0,hd1) and map(hd1,hd0) (But i'm nt sure. I just said wat i thought it might be)

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Ubuntu :: Error : No Such Device ################# Grub Resuce?

Aug 7, 2010

i installed ubuntu 10.04 and it said i needed to install new drivers so i did, then i restarted and a black screen came up saying terminating programmes, it was like that for 20 minutes, so i just shut off my pc.now when i turn on my pc it comes up with " error : no such device ################# grub resuce> " now i can not load into windows neither linux.i dont mind loosing stuff i have on linux, but i can not risk loosing my stuff on windows

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Ubuntu :: Error - No Such Device (Grub Rescue)

Nov 29, 2010

I have recently decided to try out Ubuntu(Lucid Lynx) using wubi. Everything was absolutely superb and realizing that I have a lot to learn and looking forward to it. Everything was fine until I updated and ticked 2 boxes for updating grub and restarted and couldn't boot into anything. I have xp on 80gb 2.6 celeron, and Ubuntu loaded through wubi on 320 gb external hard drive.

error: no such device??????????????????
grub rescue>

It may seem a little slow for me to put to the test your responses, because I will have to disconnect the PC that I am using and use those connections on the 2.6. This one I am using at the moment is 400hz p3.

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Ubuntu :: Can't Update Grub - /etc/default/grub: 19: E: Not Found

Nov 12, 2010

I've been trying change the default OS in GRUB. I changed the value for GRUB_DEFAULT in etc/default/grub. However, when I run update-grub, I get the following error:

/etc/default/grub: 19: e: not found

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Ubuntu Installation :: Grub Error After Upgrade To 10.10 - No Such Device

Nov 17, 2010

yesterday i upgraded Ubuntu 10.04 to 10.10. During installation i also upgraded grub to version 2. It said that there were two options that i could choose to boot and i choose both. Installation finished with out a hitch. When i attempted restart my laptop i got this message:

error: no such device: 12631218-8ac6-4505-b4cb-a66a1de1814f
grub rescue>

I tried the command help and received a message saying that the help command was not recognized. So i then gave Google a bit of a work out and have tried reinstalling grub and manually coping the grub files all to no avail. The problem i believe stems from how i have Ubuntu installed. I have Ubuntu installed like an application on windows 7 on a separate partition on my hard drive. Looking back on it i'm not to sure why i choose that route, but that is how it is installed.

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Ubuntu Installation :: Error: No Such Device, Grub Rescue

Mar 29, 2011

I just installed Ubuntu on a separate hard drive alongside Vista, and after restarting, my computer booted to a screen that said, "error: no such device: xxxxx-xxxx-xxxxx-xxxx (I don't remember exact number, if I need them I'll go back and write em down) grub rescue>"

After a bit of searching I found this thread: [URL].. I tried the first part twice which didn't change anything, so I tried the last part which was too fix the vista bootloader, which worked perfectly, and now I can get into at least one operating system. Would anyone please help me get a bootloader working so I can choose between Ubuntu and Vista? Also, is it worth mentioning that right before the computer shut down after installation, I had a huge list of I/O errors?

EDIT: After further searching I read that the I/O errors were commonly because of a faulty cd or it was spinning too fast. I think my problem with that was that it was spinning too fast, it was incredible loud and there was a huge amount of wind coming out of my computer XD. iirc I have to go to the BIOS to change disc speed?

EDIT2: I think all my problems stem from a faulty CD. I remember setting the burning speed too the highest setting when I burnt the live CD, I guess I thought faster was better.

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Ubuntu :: Error Message Trying To Access /ect/default/grub

Dec 11, 2010

I just updated to 10.04 LTS & I would like to edit my grub menu to get rid of the unneeded entries.

When I enter /etc/default/grub into terminal It gives me bash: /etc/default/grub: Permission denied.

From what I have read I just need to put # in front of what I don't want to see in the menu, but I'm unable to access the file to make the changes.

I would also like to make a backup of the file first before editing it.

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Ubuntu Installation :: Grub - Setup: Warning: Attempting To Install GRUB To A Partition Instead Of The MBR - Install - Lvm - Luks - Raid - Karmic Server

Mar 27, 2010

I'm running Karmic Server with GRUB2 on a Dell XPS 420. Everything was running fine until I changed 2 BIOS settings in an attempt to make my Virtual Box guests run faster. I turned on SpeedStep and Virtualization, rebooted, and I was slapped in the face with a grub error 15. I can't, in my wildest dreams, imagine how these two settings could cause a problem for GRUB, but they have. To make matters worse, I've set my server up to use Luks encrypted LVMs on soft-RAID. From what I can gather, it seems my only hope is to reinstall GRUB. So, I've tried to follow the Live CD instructions outlined in the following article (adding the necessary steps to mount my RAID volumes and LVMs). [URL]

If I try mounting the root lvm as 'dev/vg-root' on /mnt and the boot partition as 'dev/md0' on /mnt/boot, when I try to run the command $sudo grub-install --root-directory=/mnt/ /dev/md0, I get an errors: grub-setup: warn: Attempting to install GRUB to a partition instead of the MBR. This is a BAD idea. grub-setup: error: Embedding is not possible, but this is required when the root device is on a RAID array or LVM volume.

Somewhere in my troubleshooting, I also tried mounting the root lvm as 'dev/mapper/vg-root'. This results in the grub-install error: $sudo grub-install --root-directory=/mnt/ /dev/md0 Invalid device 'dev/md0'

Obviously, neither case fixes the problem. I've been searching and troubleshooting for several hours this evening, and I must have my system operational by Monday morning. That means if I don't have a solution by pretty early tomorrow morning...I'm screwed. A full rebuild will by my only option.

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Ubuntu Installation :: Grub Error 'no Such Device' When Trying To Start Windows

Feb 11, 2010

I am having trouble getting a dual boot setup on Ubuntu remix on a netbook. The install went fine, but then windows would not book. I had a windows error. So I reinstalled windows, and rebuilt grub. Now when I try to launch windows from the grub menu it says "error: no such device: 0a82ff1982ff0849". How do I go about fixing that? I can boot to Ubuntu fine now.

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Ubuntu :: Error No Such Device ( Lots Of Numbers ) Grub Rescue>

Aug 10, 2010

I downloaded wubi to install it on my old desktop which runs windows xp pro. The installation went through and it asked for some updates. After the updates, it rebooted but got stuck to the msg in the topic sentence. I don't have no live cd's for ubuntu and tried to read some earlier threads but they don't make any sense to me as I have no previous knowledge of linux. how to deal with this in a simpler language?

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Software :: Grub Loading Then Get Dumped - Error (No Such Device)

Mar 13, 2010

When I boot I briefly see 'Grub loading...' then I get dumped in 'sh:grub>'.
I can then boot up manually:
linux (hd0,1)/vmlinuz root=/dev/sda1
initrd (hd0,1)/initrd.img
boot

I'm very new at this, so all my attempts at correcting it has been through reading posts turned up by google searches. Previously, I was dumped at the grub_rescue> prompt (have another thread about that, but I think this is a new issue, so I'm hoping making a new thread won't bring any mod's wrath down on my head), but that seemed to solve itself through no influence of mine...

What I've tried to solve the 'sh:grub>' issue:
In /etc/default/grub:
I tried disabling quiet splash, in hopes there would be some lines that would give me a clue as to what is going on, but it jumps directly from Grub loading to sh:grub>
I tried commenting out Grub_Hidden_Timeout and setting it to a positive integer. I tried uncommenting GRUB_DISABLE_LINUX_UUID=true
In /etc/grub.d/10_linux:
I tried commenting out 'if [ -n ${have_grubenv} ]; then save_env recordfail; fi'

Then I tried typing 'search -f /boot/grub/grub.cfg' at the sh:grub> prompt and got 'error: no such device: /boot/grub/grub.cfg' which I guess meant all my previous attempts were void as grub couldn't even find grub.cfg. I've tried to reinstall grub with 'grub-install --recheck /dev/sda'. Then I found this thread and tried out "grub-setup -r '(hd0,1)' /dev/sda", hoping it would point to my grub.cfg as well. No such luck.

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General :: Unable To Boot Windows / Grub Error Saying GRub Loading Stage2 Read Error

Jul 8, 2011

I am new to Linux. I have installed RHEL 5.4 on my PC with preloaded Windows XP.

Windows was set as the first boot kernel. So if i do not choose which OS to be loaded it will load Windows by Default.

Today I got an error saying GRub Loading Stage2 read error.

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OpenSUSE Install :: Grub - Not Changing Anything From Default - Error 22

Feb 11, 2011

I'm dual-booting Windows 7 and Suse 11.3, installing suse second on a seperate 80GB drive. After a ridiculous amount of faffing around due to my dvd writer essentially not working, finally get suse installed, messing with GRUB settings in an attempt to preserve Windows' boot manager, restart; GRUB error 22.

Go through the whole process again, this time accepting the use of grub and not changing anything from default - exactly the same response. None of the tens of boot disks/utilities I've tried will allow me into suse to have a look at the grub config. There are no applications for windows that will allow me to write to ext3.

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Ubuntu Installation :: (initramfs) Prompt After Alternate CD 9.10 With RAID - Grub Loading: Biosdisk Read Error

Jan 13, 2010

I am trying to install Ubuntu on a nvidia board which, based on the forums I have perused, is a FAKERaid chipset. Originally I tried to install according to https://help.ubuntu.com/community/FakeRaidHowto to no avail. I gave up and am resorting to breaking down my raid setup (thus losing my Windows XP installation) and using Linux's software raid (which seems to be the recommended method) with the Alternate CD install.

I went in to the bios and completely disabled my board's RAID function. I then followed the instructions here: https://help.ubuntu.com/community/In...n/SoftwareRAID , except it popped up with a window advising me "one or more serial ATA RAID configurations have been found. Do you wish to activate these RAID devices?" which that page didn't mention. I believe I selected "Yes". Setting up the partitions I made (from beginning of disk to end of disk) a RAID1 200MB /boot partition, a RAID0 / partition (90GB?), free space not set up in RAID (approx 20GB for each SATA drive to later install Windows on [if that's even possible]) & then the SWAP partition 2GB at the end of one of the disks (is it OK that this one wasn't in RAID?).

The installation completed, as far as I can tell, without a hitch. Except also of note: my network card doesn't work in the installer (gives an error message about unable to configure dhcp) so i'm not connected to the internet. Then I restart and the following appears: grub loading: error: biosdisk read error. Followed by what appears to be the Ubuntu loading splash (just a small white shape in the middle of the screen), and then:

[Code]....

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Ubuntu Installation :: Grub Error: Unknown Filesystem And Grub Error: No Such Disc

Nov 23, 2010

I have a dual boot system with ubuntu 9.10 x64 and Windows 7. Everything has been working fine for a a long time but yesterday I tried to delete an unused partition through the Disk Utility in ubuntu (System->Adminstration->Disk Utility) and everything was messed up. I used to get the "Grub error: Unknown filesystem". I managed to create an ubuntu bootable usb and followed some tutorials for fixing grub but all i managed to do is to get another error: "Grub error: No such disc". After some experimentation i got
"Grub stage 1.5" which gave me a grub> command prompt./dev/sda is the drive containing Windows and Ubuntu.

Code:

[ Boot Info Script 0.55 dated February 15th, 2010
============================= Boot Info Summary: ==============================
=> Grub 0.97 is installed in the MBR of /dev/sda and looks on the same drive
in partition #6 for /boot/grub/stage2 and /boot/grub/menu.lst.

[code].....

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Ubuntu :: Lucid Lynx After Restart Error: No Such Device - Grub Rescue

Aug 27, 2010

when it comes to linux, but like the idea and hope one day to get away from microsoft all together. This is the second time I have tried to install ubuntu on my eeepc 1000HG in addition to windows 7. The first version was karmic koala netbook remix, and yesterday it was lucid lynx netbook remix. Its annoying because before the update packages are downloaded and installed it runs smoothly, even additional applications run with no problem, but after restart to complete installation the following error message appears.

error: no such device: 5290ea6f-1bdf-4eda-b56e-2f282662e188. grub rescue>

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Ubuntu :: Grub Update Error "update-grub Head: Cannot Open `/boot/grub/video.lst' For Reading: No Such File Or Directory"

Apr 7, 2010

after doing an upgrade to 10.4 and updating grub I get this message. how do I address this

[Code]...

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Ubuntu Installation :: Locked Out Of Windows Partition With Grub - Error: No Such Device: 2e3857fb3857c08f

Apr 5, 2011

I have two partitions on my HDD. A Windows XP (hd0,2) and an Ubuntu 9.10 (hd0,1).I have been using the Windows mainly and ran a program that changes the HDD's serial number. Now when I boot up and Grub loads, I try to access the Windows partition and get the following error:

Error: No Such Device: 2e3857fb3857c08f

I am still able to boot the Ubuntu partition but can not seem to get grub to point to the Windows partition any more. This is very frustrating as I really need to get back into that partition soon.

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Debian :: Grub Load Error "Grub Loading Stage1.5. Grub Loading, Please Wait... Error 15"

May 23, 2010

When I try and boot my Debian computer I get the messages: Grub Loading stage1.5. Grub loading, please wait... Error 15 Is there any way of recovering from this - or is it simply a fresh install? I was attempting an upgrade from Lenny to Squeeze and despite a few hurdles it looked like it was all happening. Got the new kernel loading, and the new grub. It looked as though grub2 was working so I ran the grub-remove-legacy-support command (something like that) and now my computer won't boot grub or Linux.

I'm assuming the MBR on my harddrive is lost, however I don't know what state the partition is in. I'm guessing that maybe this has been lost as well. I tried a few tools from the Ultimate Boot CD but nothing here was able to re-install my grub or boot from any partition or even mount my file-system. I'm fearing the worst but would like it confirmed before I blow it all away with a new install.

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