Ubuntu :: 10.10 Grub Rescue (won't Boot) When External Hdd Is Connected

Jun 12, 2011

I have grub 1.98 and it boots fine with out my usb hdd connected but brings me to grub rescue when it is.

It takes me to grub rescue and tells me that it cannot find device: "UUID"

This UUID is not even the UUID of the drive that I cannot plug in if I want my computer to boot to grub.

Here is blkid with the usd hdd plugged in after boot:

Code:
/dev/sda1: LABEL="System Reserved" UUID="BA56FD4B56FD0941" TYPE="ntfs"
/dev/sda2: UUID="E23E02D93E02A71F" TYPE="ntfs"
/dev/sda3: UUID="9579da2d-5ba0-407c-a95d-9f134a1417f3" TYPE="ext4"
/dev/sda5: UUID="caefabd7-c8f0-4fca-8005-d682ae939b91" TYPE="swap"

[Code].....

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Ubuntu :: Cannot Boot From Internal Or External HD - Grub Rescue

Sep 30, 2010

I cant boot from my External HD with ubuntu installed.
I get this message:
error: file not found. grub rescue>

In an attempt to fix this problem, I tried using the following sudo command:
sudo mount /dev/sda5 /mnt
sda5 does not exist, I tried 4, then 3, then 2, and it worked, but that was a partition of my internal HD containing windows 7.

I also typed in:
sudo grub-install --root directory=/mnt /dev/sda
not I get the following error when I try to boot from my internal HD:
error: no such device: 57288a24-5d12-4fb1-b27e-eb09a1f9b7c6. grub rescue>
Is there a way to get grub to boot into windows 7 again?

When I type:
sudo fdisk -l
I receive a list of my drives and their partitions, This is my assumption as to what drive is

Which:
/dev/sda1 = Vista loader, for Windows 7
/dev/sda2 = Windows 7 (At least I hope its still there.)
/dev/sdb1 = Bootable Flash Drive.
/dev/sdc1 = External HD.

The text from the terminal is as follows:
Disk /dev/sda: 320.1 GB, 320072933376 bytes
255 heads, 63 sectors/track, 38913 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disk identifier: 0x8da4c52c

Device, Boot, Start, End, Blocks, Id, System.
/dev/sda1, 1, 1355, 10877952, 27, Unknown.
/dev/sda2 *, , 1355, 38914, 301961224, 7, HPFS/NTFS. (The commands changed this from FAT32)
Disk /dev/sda: 8054 MB, 8054636032 bytes
8 heads, 32 sectors/track, 61451 cylinders
Units = cylinders of 256 * 512 = 131072 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disk identifier:0x00000000

Device, Boot, Start, End, Blocks, Id, System.
/dev/sdb1, *, 1, 61452, 7865839+, b, W95 FAT32.
Disk /dev/sda: 250.1 GB, 250059350016 bytes
255 heads, 63 sectors/track, 30401 cylinders
Units = cylinders of 16065 * 512 =8225280 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disk identifier:0x0000a613a
Device, Boot, Start, End, Blocks, Id, System.
/dev/sdc1, *, 1, 30402, 244197376, 83, Linux.

Eventually I would like to fix the error I get when I boot from the external, I would like to to boot to ubuntu, but for now I am concerned with getting my internal HD to boot windows 7. Where I originally found the terminal commands to begin with. I think sda5 is where linux was installed in the example I found, and didn't realize it.

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Ubuntu :: Installation On An External - Grub Rescue

Jan 7, 2010

I have windows 7 64bit on an internal harddrive, a larger internal harddrive for storage and a 1tb mybook external for storage. I have an ubuntu 9.10 iso burned to a cd that i got from the ubuntu site and I had previously installed dual boot successfully on my other computer, a laptop.

I went to install it on my desktop as well and when i was selecting how much space to allocate i noticed it was using the mybook and not the internal. I couldn't see an option to change which harddrive it used so in my ignorance i allocated 50gigs to ubuntu on my 1tb external mybook. This was obviously the wrong decision as after restarting the grub bootloader would not open and grub rescue came up everytime after that.

I have tried booting from the cd, reinstalling from the cd, and using a windows 7 repair cd. I can't even get into non installed version of ubuntu to try and use terminal. I have spent the 5 hours on the internet trying to figure out what to do and i have no clue. I want to get ubuntu off the mybook and get back on windows 7 where i can then reinstall ubuntu properly on one of my internal harddrives.

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Ubuntu Installation :: Grub2 External Hard Drive - Fails And I Get A Grub Rescue

Feb 8, 2010

I've tried to be clever but as usual I didn't think before acting and missed a small detail.

I have recently installed karmic (dual booting with Vista) on my dell xps laptop. The install went fine, I'm very happy with my new OS.

I bought a new Seagate 500GB portable external HDD. I got a bit over-excited and installed karmic on the external drive. This worked fine and I got a lovely (but slow to appear) Grub2 menu showing my vista and both ubuntu options.

My problem is that now, when I unplug the external drive, Grub fails and I get a grub rescue> prompt. So I need the external drive to be plugged in if I want to boot.

It seems I have done something to the grub configuration. I have read around the subject but I am not confident about how best to proceed.

I understand there is an 'advanced' option in the installer which will allow me to choose where to install grub. Presumably I want it on the internal drive so that I can boot without the external one plugged in.

Am I right in thinking I can just pop in my install disk and redo the installation?

If I indicate I want to install Grub on the internal drive, which partition should I aim for?

Will I get a grub option for booting to the external drive?

Will I be able to plug the external drive into a different machine and boot from it?

I haven't done anything with the fresh install on the external drive so I don't mind losing that.

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Ubuntu Installation :: Grub Rescue - Access My Files On External - Failing - Drive ?

Jun 28, 2011

I have an hp laptop and i had ubuntu on it for 3 years. my hard drive started to fail a while ago (i had ubuntu 10 on it until 1 week ago) and a then it all went black...I took the laptop to a repair shop, they told me it was the disc, so i bought a new disc, installed it on my laptop and reinstalled the new ubuntu 11. so far so good. i have now a working OS, internet connection and i can in fact type this message.

The thing is: all my files are on the old drive, which doesn't load/boot/start/read anymore. I have tested it on some friends's pc, tried a few HD disgnostic tools, they all send the same message: "fail"

I then tried to mount my old drive (with all my precious files in it) on my laptop as an external drive (usb) hoping that ubuntu 11 could read it as an external usb key: it gets read by the system, but it shows no files at all. it also shows an error message saying the drive can not be mounted, with some "sdb1" thing. i am sorry but i'm really dumb when it comes to tech language.

Then i tried to boot it on start-up but i got the grub rescue> thing and nothing else, just a sad, blinking cursor to recover my files,i have also tried testdisk but couldn't understand very well how to use it, and then photorec, from which i recovered bits and pieces of files, with no name. some of them are just parts some of them are complete.

My problem is: i have to get access to my files, as I use them for work, i couldn't do a back-up recently and i have some real important deadline to meet... for which i need those files. is there any way i could solve the grub issue and have that drive load/mount again as external usb?

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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 Installation :: Cannot Boot Without External HDD Connected

Feb 28, 2010

I just recently installed ubuntu. I had always used windows before, and I wanted to try something different. My laptop's internal HDD is pretty full so I decided to install ubuntu on my 500gb external HDD. It is connected via USB A to USB B. So I run through the installation no problems at all. I partitioned 200gb of the external HDD for ubuntu. After install I could run ubuntu just fine and I really like it.

However now it boots through GRUB. I am not really sure what GRUB is but it says GRUB loading every time I boot up and then lets me choose what os to boot, but if I do not have my external HDD plugged in then GRUB fails to start and I cannot boot at all from my laptop. Is there a way that I can get it to boot windows from the internal HDD without having the external HDD?

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OpenSUSE Install :: Boot From USB Connected External Hard Take Long Time From Loading INITRD Image To Start Boot Process?

Jul 18, 2011

I have installed "open-SUSE 11.4" on a "500GB Free Agent External Hard Drive". I didn't have any problem in booting since last week that I booted it from my laptop. Also I did it before several times from then when I try to boot it e.g. from an "Intel(R) Core(TM)2 Quad CPU Q9400 @ 2.66GHz" PC the time between loading INITRD and starting boot sequence messages lasts nearly 30 minutes!(i didn't actually measure it but it take a long time in the same order). after starting boot sequence which is showed on monitor everything looks normal. e.g copy of files would be done by speeds between 2MB/s to 30 MB/s depending on the targets.I used to use the external hard derive to boot from different laptops and PC's from start but I didn't have such a problem anytime.

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Ubuntu Installation :: How To Boot From 'grub Rescue'

Jun 5, 2010

I've got Ubuntu 10.04 installed on one partition, and Windows Vista on another. I was messing around with my partitions, and now I can't boot to either one. I just get an error when I boot up on GRUB which says "error: no such partition", and then a prompt saying 'grub rescue>'. I've read up on other people's posts, and they said that I should reinstall GRUB from a livecd, but that doesn't look like it does anything. It seems that GRUB is trying to boot from hd0,8, and that doesn't exist anymore. I can change the 'root' and 'prefix' variables to the right partitions, but the 'boot' or 'chainloader' command doesn't work. You should be able to boot from 'grub rescue>', because that's what it's for, right?

I just want to be able to boot into Ubuntu, not Windows.

PS: Sorry if I'm specifying way too much information(or not enough), I'm fairly new to forums.

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Ubuntu :: Get Rid Of Grub Rescue And Need Windows To Boot?

Aug 4, 2010

Yesterday I made a thread about going back to Windows as I'm giving this laptop to a friend. Anyway, after I finally got Windows to re-install I'm now stuck with "grub rescue" instead of the OS booting. Is there anyone who knows a way I can get rid of grub rescue and get Windows to boot?

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Ubuntu :: Stuck At Grub Rescue And Can't Boot Fom Cd

Nov 26, 2010

I lost power during my Ubuntu update and when I powered back up ubuntu was broken. Now the stupid bit. My hdd was partitioned into 3 bits, vista os, data, and ubuntu. In vista I deleted the ubuntu part and merged it with the data part. Now when I power up my computer it goes straight to a black screen that says...
error : no such partition.

grub rescue> I have looked through the forums for an answer to my problem but to no avail. When I put the ubuntu live cd in and turn back on itjust goes to the same screen. I'm a novice to the world of computers and need any help you can offer.

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Ubuntu :: Grub Rescue > No Content In /boot

Feb 20, 2011

I installed Ubuntu server with software raid 5 and all went well. Then I figured I should test the raid by these instructions [URL] As a result mdadm would create /dev/md0 with 3 drives and 1 spare. Confused on this matter I just reinstalled Ubuntu. Now, I'm greeted with a grub rescue prompt at boot. Running set displays the correct parameters and ls (md0)/ shows the content of /. However, ls (md0)/boot/ shows no content what-so-ever. If I boot from the livecd there are all the files needed in /boot. I've tried running grub-install on all the drives without results.

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Apr 21, 2011

Month or so ago I ran into BusyBox, so while reinstalling Ubuntu 10.04 onto to that first FreeBox HD from a live CD, while manually adding & editing a new partition with free space to put Ubuntu into, I must have accidentally edited pre-existing partitions possibly deleting everything off of that HD. After reinstalling, I went into the terminal & ended up trying to recover or restore the partitions that I thought were lost or deleted or struck sick (since it had BusyBox). But that broke it. Now, after breaking that first HD of mine, when booting, I run into the following at startup:

error: no such partition.
grub rescue>

Right now, I have that first HD as my slave HD I can no longer find this HD, I can't load into it. It might have died because it was making noises the last several weeks. But just yesterday when trying to get into this same first HD from Ubuntu, I'd receive this message:

Error mounting: mount: wrong fs type, bad option, bad superblock on /dev/sdb1,
missing codepage or helper program, or other error
In some cases useful info is found in syslog - try
dmesg | tail or so

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Ubuntu Installation :: Meerkat Won't Boot With External Monitor Connected?

Oct 30, 2010

Have a Dell Studio XPS with 64 bit Meerkat on it. Whenever I connect my Samsung external monitor by displayport/dvi ubuntu no longer boots. Machine unresponsive and have to cut power and disconnect it. :/

Sounds exactly like this bug, no? [URL] Except for the fact I have ATI video card and the restricted drivers (with Catalyst control center, although it is useless).

Code:
02:00.0 VGA compatible controller: ATI Technologies Inc Madison [Mobility Radeon HD 5000 Series] Win7 install works fine.

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Apr 27, 2011

I have an HP Pavilion that was/still is running Vista. I recently decided to dual-boot to Ubuntu from an external hard drive. Both systems will boot up fine its just that for some reason it won't boot to the internal drive (with vista) unless the external is connected. I just put the HD in another laptop only to have the same problem.

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Ubuntu :: Grub Rescue On Boot Up After NTFS HD Format

Feb 15, 2010

I had to format a partition of my NTFS hard drive using the Disk manager and the next time when I try to boot my computer I get a message Grub rescue.

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Ubuntu :: Boot Windows From Grub Rescue Prompt?

May 13, 2010

i have dual booted ubuntu with windows. but after a few days i realized that ubuntu was too slow for my system and then decided to uninstall it and planned on installing it later. So i deleted the partitions on which ubuntu was installed. I rebooted the system and the grub rescue promt appeared, i already knew the work around was to restore the windows MBR using the live cd i used to install ubuntu or the Windows installer. But the main problem is my DVD suddenly stopped working . So my question is, can i boot windows using the promt? is there any commands? or can i uninstall grub using the rescue promt?

My desktop has been down for more that two weeks

Ubuntu version: 10.04

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Ubuntu Installation :: Can't Boot Anything / Grub Rescue Prompt

Jun 19, 2010

So I had Ubuntu Server installed and I decided to make some new partitions using gparted via a live usb of Ubuntu desktop. And so I think messed up pretty badly. Ubuntu Server won't boot and I get the following error followed by a grub rescue promt:

Code:Diskette drive 0 seek failure
error: file not found grub rescue >
To me, it seems like some boot files may be missing if not the whole system. After I made the partitions, the live USB of Ubuntu was still working fine until I rebooted.So here is the bigger issue, I figured I would just reinstall everything all over again, but instead I can't.

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Ubuntu :: Boot - Error: No Such Partition: Rescue Grub?

Jul 8, 2010

then my computer starts black window opens error: no such partition grub rescue>

[Code]....

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Ubuntu :: Cannot Boot - Ends With Grub Rescue Error

Sep 10, 2010

I just installed Ubuntu on a computer but it can't boot, it ends with a greb-rescue error.
What shall I do? Here's my fstab and my sudo blkid. I did an ubuntu side installation with xp.

Le FSTAB
# /etc/fstab: static file system information.
# Use 'blkid -o value -s UUID' to print the universally unique identifier for a device; this may be used with UUID= as a more robust way to name devices that works even if disks are added and removed. See fstab(5).
# <file system> <mount point> <type> <options> <dump> <pass>
proc /proc proc nodev,noexec,nosuid 0 0
# / was on /dev/sda5 during installation
UUID=3a307ad3-99a9-4301-8ad0-f601ef9d157c / ext4 errors=remount-ro 0 1
# swap was on /dev/sda6 during installation
UUID=5b3ff501-f07c-4c2e-ac2d-a238b599cbe2 none swap sw 0 0
/dev/fd0 /media/floppy0 auto rw,user,noauto,exec,utf8 0 0

SUDO BLKID:
/dev/sda1: LABEL="System" UUID="26AC3F75AC3F3E9D" TYPE="ntfs"
/dev/sda6: UUID="5b3ff501-f07c-4c2e-ac2d-a238b599cbe2" TYPE="swap"
/dev/loop0: TYPE="squashfs"
/dev/sda5: UUID="3a307ad3-99a9-4301-8ad0-f601ef9d157c" TYPE="ext4"

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Ubuntu Installation :: Grub Rescue Preventing USB Boot

Dec 15, 2010

So earlier today I was running out of space on my regular Windows 7 partition and I played around with extending it. I ended up somehow deleting grub and messing up my entire system. I've spent the last 2 hours looking for the answer to this and everyone has been saying to boot from a live disk and fix it that way.

Well, I've tried everything, the only way I can boot right now is via USB and it will NOT allow me to. I checked on other computers and even re-installed and formatted by external hard drive to try and get it to work and it refuses. I've changed my BIOS to boot from USB so I have no idea as to why this is happening. Also, I've tried using the "ls" command to find my partition via "ls (hdX,Y)/" and all of them come up as unknown filesystems.

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Ubuntu Installation :: Grub Rescue And Error Reading Boot CD?

Apr 10, 2010

I have a SONY VAIO CW26 laptop. I got a Windows-7 version prepacked with the laptop.I installed Ubuntu Karmic 9.10 over a new partition that i created using the inbuiltfacility in windows7. Both the operatings systems i.e windows7 and ubuntu karmic 9.1 were working nicely.Today i created 2 more partition within the partition inside windows.Once I rebooted after creation of the new partitions my laptop is just showing a black screen with following message.

GRUB loading.
error: unknown filesystem
grub rescue>_

[code]....

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May 24, 2010

I just did a full installation of lucid erasing karmic. installation is completed but when I boot I get grub rescue. I also have WIN7 installed.

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Ubuntu Installation :: Boot From Flash Drive 10.10 Grub Rescue?

Oct 24, 2010

First time poster and recent Ubuntu adopter. I recently installed 10.10 on my main HD alongside a separate windows (xp) partition (it worked perfectly). Then I decided to get fancy and installed 10.10 to a flash drive directly from a live cd. I attempted to boot from the flash drive, and got a black screen with a blinking underscore for about 10 minutes, then I forcefully rebooted. Now, whenever I attempt to boot at all from my main HD I get "error: no such device and a ton of misc numbers. And the flash drive will not allow me to boot from it. Currently, I'm working within the Live CD.

I have a few projects I need to complete with Dreamweaver inside XP, so recovering it completely would be nice.

Code:
Boot Info Script 0.55 dated February 15th, 2010
============================= Boot Info Summary: ==============================
=> Grub 2 is installed in the MBR of /dev/sda and looks on the same drive in partition #1 for (,msdos1)/boot/grub.
=> No boot loader is installed in the MBR of /dev/sdf

[Code].....

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Dec 2, 2010

I have a netbook that dual-boots Win XP and Ubuntu 10.04 and accidentally hit the Win recovery mode in GRUB today, but quickly restarted without formatting or proceeding with any recovery. But upon reboot I just see: error: no such partition. grub rescue>

What I have tried so far: Boot to USB Live Disk... It won't, just goes straight to grub rescue.I do ls and it gives me (hd0) (hd0,4) (hd0,3) (hd0,2) (hd0,1) (fd0) error: fd0 cannot get C/H/S values.

set gives me
prefix=(hd0,5)/boot/grub
root=hd0,5

but if I try to boot it says unknown command so I figured I needed to find the right partition to boot from but I went through all of them with ls (hd0,4)/boot, ls (hd0,3)/boot etc. and every partition comes back "unknown filesystem".

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Jan 17, 2011

I set up my Dell Inspiron Laptop as Dual Boot -> Xp / Ubuntu 10.04. - all worked well. I had 2 installations of XP on this machine and I removed one - all worked well. I then went into XP and deleted the partion (4) that the old XP had resided on (using Easeus Partition Master) All NOT working well !! Now when booting the machine I get grub rescue> I did ls and got ....

[Code]...

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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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Jul 4, 2011

I've setup raid to my primary partition by starting up from an USB. Array was up&working. Now starting up from my HDD's, I get: error: file not found. grub rescue> what should I do here?

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Jul 18, 2011

Have win 7 on one drive and ubuntu on 2nd drive then son goes and deletes partition that Ubi was in ,now cannot access any system all i get is grub rescue on screen and i cannot boot with any thing taking a guess the grub bootloader has died and made a mess of the windows bootloader.

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Ubuntu :: PC Boots To Grub-rescue - Cannot Boot Live Distros From Usb

Apr 27, 2010

got four partitions, one for media storage, one with ubuntu 9.10 32bit, one with crunchbang lite 9.04 64bit and one swap partition. The partition with ubuntu has been formated from ext4 to fat32 (with nothing on it, obviously). Whenever I boot up the pc now, I get an "unknown filesystem" error and a grub rescue> prompt. When I try to boot up a live usb image from my usb stick I either get a "linux kernel not found" message (crunchbang lite 32bit) or "initial menu has no LABEL entries!" error (gparted live usb) which changes to "Could not find kernel image: vesamenu.c32" after a couple of seconds. save my media partition or, more importantly, my crunchbang lite partition (which has one single important file on it, I'd love to recover). If this is somehow not possible, then I'd at least like to get my system usable again by succesfully booting from usb. I'm fairly new to using linux. I tried some grub-rescue commands, but not even the "help" command worked,

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