Ubuntu :: Booting To Grub Rescue After Update?
Jan 21, 2011
Update Manager showed updates available so I installed them about 1hr ago. When the update was complete I clicked the "Reboot to complete installation" button.
Upon reboot I received the following error message...
Code:
Kernel panic -not syncing : VFS : unable to mount rootfs on unknown -block(0,0)
Pid :1, comm: swapper Not tainted 2.6.35-24-generic #42-Ubuntu
I rebooted and was taken to a boot menu. Both the most current version 2.6.35-24-generic and 2.6.35-24-generic[Safe Mode] gave me the same errors so I booted the the previous version 2.6.35-23-generic
I then ran the following in the console...then did a reboot
Code:
sudo update-grub-update
The result was Grub Rescue Shell where I did...
Code:
set root=(hd0,1)
linux /vmlinuz root=/dev/sda1 ro
initrd /initrd.img
error: couldn't read file.
initrd.img is there but it can't be read.
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Oct 10, 2010
i have using ubuntu for 3 days with no problem i have 3 operating system vista,7,ubuntu vista and ubuntu on c: drive today i want to use vista for something and when i open it on ubuntu boot menu my laptops recovery try to recover and just give an eror like:EROR with 200 punto when i restart computer i just saw eror: no such partition Grub rescue> command screen i have no recovery dvd and ubuntu cd now i left them to my friend so can i repiar it just with commands if ubuntu is demaged because of recovery screen on D: partition i have win7
i just start using ubuntu i dont know any thing about it
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Mar 18, 2011
my ubuntu installation has stopped booting after i deleted and again created one of my partitions (not the ubuntu partition but my data partition). but now when i switch on my netbook it says: error: unknown filesystem grub rescue>
i used gparted live to resize. this is my disk partition structure:
[Code]....
before doing this, my ubuntu partition was /dev/sda7, the swap partition was /dev/sda 6, and the data partition was /dev/sda 7.
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Jan 3, 2011
Ubuntu 10.04 was installed on a friends laptop. An update has resulted in "Error: No such device".
Usually I would have used the live CD to rescue. However the laptop won't boot from CD/DVD andmy friend doesn't know his Bios password as it was already set when he was given it. He has contacted Asus and they won't give him the password (laptop was a present).
The result is that my friend is stuck on grub resuce and we need to find away to boot into linux on the hard drive.
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Aug 2, 2010
After lots of searching last night I noticed that over the last couple of days there have been quite a few posts of people receiving the error: no such device lots of numbers grub rescue>. I have a dual boot vista/ubuntu setup with ubuntu on my d: drive and windows on my c: drive and it happened to me last night. So after my freaking out when I received the grub rescue> error after updating somethings in my ubuntu install and restarting. Once the computer rebooted bam! error. after much freaking it only fixed itself by reinstalling the windows bootloader via the vista rescue disk I was wondering if there was a way to prevent this from happening again? will ubuntu attempt to "update" itself again?
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Aug 8, 2010
Installed 10.04 on my daughters laptop from within windows Vista. All went OK but I had two boot loaders, i.e. turn on laptop and I would get the Windows loader asking if I want to boot in to windows or Ubuntu. Upon selecting ubuntu I would get the standard grub loader that I have on my PC. Did an update a few mins ago and it asked me to update grub which I did and as there was only one disk showing clicked forward. Now on reboot I have grub rescue prompt, no such device. Hard drive is a single 80 gig drive with windows on one partition and ubuntu in another. Have the live cd so can boot from that I guess. What do I do next?
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May 26, 2011
I dual boot Windows 7 and Ubuntu, and recently I updated from 10.04 to 11.04 via live cd. However, I now get the grub rescue prompt instead of the normal grub menu when I boot my computer.
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Mar 5, 2011
I was unaware of the difficulties of installing and booting Ubuntu from the "onboard raid" that the NVIDIA nForce chipsets provide. However, I've managed to get it working reliably with one single caveat:
When update-grub builds the grub.cfg, it refers to all of my partitions as follows:
Code:
menuentry 'Ubuntu, with Linux 2.6.35-27-generic' --class ubuntu --class gnu-linux --class gnu --class os {
recordfail
insmod part_msdos
insmod ext2
set root='(/dev/mapper/nvidia_caifaefg,msdos5)'
[Code]...
So I'm guessing that the whole nvidia_blah,msdos5 is because of that. However, it doesn't seem to explain why Grub would THINK that would work and it in fact does not work. That's the biggest source of confusion on my part.
My questions are as follows: First off, because as an IT person I want to know: Why does this sort of change work? What does changing that device name change in GRUB's behavior? Is there a setting in /etc/default/grub that would change the way it's naming these RAID devices? Is there a value for this setting that would give me the device names that work, as explained above?
If there is no setting change I can make in /etc/default/grub, could I add a sed command on to the end of update-grub or can I make a modification to one of the scripts in /etc/grub.d? What sort of change would be recommended? How would I preserve this change through later package upgrades that would possibly rewrite these files?
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Jan 5, 2011
Dell Inspiron E1405 - 160 GB drive with 2 partitions - I think only 1 partition was used for windows and ubuntu Used wubi to install 10.04 - both XPP and 10.04 worked fine after repairing the XP install My boyfriend used Referencer (.reflib) in Ubuntu 10.04 to organize and tag about 900 documents. He spent around 9 hours on the project and its VERY IMPORTANT. I am a dumb ***, forgot the project was on the computer and updated to 10.10 via update manager without it backing up. Now I cant boot to XPP or Ubuntu - "error: no such device:", "grub rescue" My main concern is getting the data back. I would rather uninstall WUBI and install Ubuntu on the 2nd partition (wish I would have done this in the first place but 10.04 was my first Ubuntu install and I didn't know any better). I have to get this data back! I have tried the following and cant locate the referencer (.reflib) file or the .docs and .jpgs booted to USB using my 10.10 netbook remix USB install USB stick - I can see the windows files pulled the HD out and connected it to my Ubuntu netbook, an XPH and W7 computers -cant locate data
[Code]...
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Jun 15, 2010
I had windows 7 and I just wanted to try ubuntu and I am totally new to linux, however, I installed ubuntu 9.10 using wubi and it was fine when I boot it asks me for windows or ubuntu no problems. Then it asked me to upgrade to 10.04 I agreed and installed it. After installition restrting it gave me this grub thing I don't know what to do I googled it but I couldn't fix the problem please help I need my computer soon.
Also I tried but I couldn't boot from windows or ubuntu cd.
this may help: if I printed "ls" it gives me "(hd0)"
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Oct 30, 2010
I had a problem with my grub (system displayed "unknown filesystem" and then the grub rescue prompt). I then used a livecd of ubuntu 9.04 and ran fsck for a while (closed it in the middle). Grub then worked. But when i select ubuntu 10.04 it goes to the purple screen and stops there. There's some error before loading the purple screen.
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Nov 10, 2010
I installed Xubuntu 10.04, and it was working somewhat smoothly(little drivers, but I could see and hear). Ran the update(as of 3 hours ago), and started up the machine. Here is what greeted me. Insyde ACPI BIOS Version 1.50.00 Date: 11/01/02 Copyright (c) 2002 Insyde Software, Inc. All Rights Reserved Attempting to boot a Hard Drive... error: no such device: 6a7820b6-708d-4c44-a057-a2aff1467203 grub rescue> I am not too sure how this happened, or what to do. The machine is a Kohjinsha SA1F00B AMD Geode LX 512mb and 80gb Hitachi HD.
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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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Apr 11, 2010
First the hard data:
Upgraded from Ubuntu 9.04 to 9.10 via upgrade manager
System is AMD 64
Have dual boot with XP on seperate hard drive
[code]....
Then the wheelspin:
Seem to have knocked out GRUB as normal loading screen does not appear anymore.
Worse, I think I accidently installed grub to something labelled SDC5.
Cannot get anything except the "grub rescue" prompt. I'm not sure if using the LiveCD (9.10) can help. Have tried a few prompts from other threads but just ended up with mud splattered all over the place. I'm gathering I need to load grub, but can I do it using any grub rescue commands?
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Jan 31, 2010
Yesterday I partitioned my hard drive with kubuntu netbook remix and windows 7. after a few hours and reboots i turned on my computer and it said Grub loading. unknown filesystem rescue grub> It looks like allot of people have been having similar errors recently with windows 7.
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Jan 15, 2011
So I wanted to get rid of ubuntu 10.10 on my HP pavilion dv6 laptop as I wanted to make some hd space. Its a dual boot with windows 7. I deleted the ubuntu partition and expanded the windows partition to fill the whole hard drive again. When I restarted my laptop I got the "error: no such partition. Grub rescue>" message.
I tried inserting my ubuntu 10.10 boot cd but whenever I boot from the cd I get the exact same grub rescue error. Is it possible to remedy this situation from the error? I am currently unable to download a windows recovery cd so I'm stuck in the grub rescue page unless its possible to fix this mess from the error prompt.
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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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Jun 23, 2010
Ubuntu 10.04 was in small slave-disk, and I put other bigger disk same type IDE/ATA.In first start I get message: "no such device....., grub rescue."Anyway, I make installation in this disk and and now after start message is: "error: out of disk, grub rescue.So now I can not use master/XP and no slave/Ubuntu.
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Aug 27, 2010
I have a vista/ubuntu system. I tried to restart the computer into vista and it came up grub rescue. I did what someone suggested and typed in grub rescue> set prefix=(hd0,5)/boot/grub grub rescue> insmod (hd0,5)/boot/grub/normal.mod rescue:grub> normal Anyway that got me into a menu where the ubuntu server is. I chose it and it sends me into tty1 where it asks for my login My login when the machine used to come up log/pass was dan/mypass
but in the tty1 it says login incorrect. I need to get back into my server. I'm not sure why it's messed up. So how do I do it.
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Nov 24, 2010
I'm a linux/unbuntu n00b and having some major issues here. I am new to using Ubuntu and have been experimenting with it on my netbook as well as kubuntu and a few others. I love the linux alternatives to Windows. It started with me running Windows 7 Starter along side Ubuntu. I was trying to resize my Windows partition and give Ubuntu more space. I managed to somehow delete the wrong partition, making a very careless mistake. Long story short, my netbook is stuck at the grub rescue screen and I have been searching the net for about 3 hrs just tonight plus whatever time I spent last night searching and cannot get this fixed. I've tried booting from the flash drive using Unetbootin and it will say "Missing operating system" before the grub rescue prompt and I did change my boot sequence. I've also tried using some commands in grub rescue and got various messages such as, no such disk, no such partition, cannot find "grub_xputs", cannot find C/H/S values...
I have a Gateway LT21 netbook with a 250gb hdd. Any help is appreciated. I realize this is a common issue and has been posted a lot but I have searched and my issue is on going and I'm guessing its specific to my setup.
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Dec 7, 2010
I have an Ubuntu 10.4 installation (dualboot with windows XP) with grub2.After I resized some of my partitions using a gparted live cd, the system goes directly to grub rescue mode every time I boot.Then I follow the instructions which are given in grub2 wiki site to boot.The grub boot directory is now located in sda6 (hd0,6) in my system as found out using 'ls' command.
But in the grub rescue mode when I enter the 'set' command (one of the very few commands available), to display current prefix and root, it gives "(hd0,7)/boot/grub" as 'prefix' and "hd0,7" as 'root'.After entering the following commands, I'm able to boot.There are other users at my home not familiar with ubuntu. windows is their OS of choice. So I don't want to remove windows installation .One solution that I can think of is creating a grub rescue CD using grub-mkrescue, then using windows cd to fix mbr (which will overwrite grub? or the pointer to grub?) and then using the grub rescue cd to boot into Ubuntu but I'm not sure.
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Jul 28, 2011
I own a Sony Vaio VPCEB3AFM. It came with pre-installed Windows 7 Home Premium 64bit, no disks or anything. The product key is on the back of the laptop. I later installed Ubuntu, as I was beginning to take an interest in the potential of computers and began to explore with different Operating Systems. I installed it along side Windows 7. THEN, me being the dumbass I am, installed BackTrack 5 also. I then called Sony in attempt to restore my computer to factory defaults and just have Windows 7 as my only operating system. I shut my computer down and then hit F10 until the Vaio Rescue shows up. It was in the process of Restoring when it restarted and an error message came up. It reads, Error: No Such Partition Grub Rescue>. I have no idea what to do none of the OS boot up when I start it. I have no disks, I have only Ubuntu on a USB drive which I boot up by changing the BIOS blah blah. But when I do not have it in, the error message occurs.
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Feb 15, 2011
I'm working on a managed desktop at work with Scientific Linux so I decided to install latest Ubuntu 10.10 on my laptop, an Aspire 6930, and set it up so it dual boots with Windows Vista.
It boots for the first time,everything looks great and it asks me to update some programs.After it does that,I restart and I get a grub rescue message while there was a strange clicking sound coming from the hard disk. I reinstall Ubuntu through BIOS with a CD and I bring the system to the original state.
I can now boot either with Ubuntu or Vista but I don't dare update the programs it prompts me to as I fear it will lead to the same result. It's been like this for the past month and I was wondering if there is a way to know what actually caused the problem in the first place assuming that is has to do with a program that was updated.
Truth is that the specific model has this problem with the hard disk that makes that constant clicking. When running Vista I have a program called Notebook Hardware Control which lowers some settings and stops the clicking.When running Ubuntu, there isn't any. So is there a way to know which program can cause such an error and refrain from updating it?
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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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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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Sep 28, 2010
I know this is a common error, but my situation is a little different than previous threads on this issue and I just want to make sure I get the correct solution.
Basically, I had Ubuntu 10.04 and Windows 7 on my netbook and wanted to try a more lightweight version of Ubuntu. After settling on LXDE for a desktop, I decided to install Lubuntu 10.04. I chose not to install LXDE over regular Ubuntu because I wanted to eventually end up with an Ubuntu distro with either GNOME or LXDE, but not both. So rather than put myself through the hassle of uninstalling all the GNOME or LXDE packages, I decided to keep them each on separate partitions.
In the end I decided to just stick with regular Ubuntu and deleted the Lubuntu partitions. Now I get the GRUB error written in the title of this thread.
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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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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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Dec 3, 2010
I uninstalled ubuntu from my main HDD, and its now on a different HDD. when I turn on my computer I get:
Partition not found
Grub Rescue
I've used my windows disk and repaired my mbr and boot (bootrec /fixmbr bootrec /fix mbr) multiple times, yet I always get this problem.
Only way I can boot windows is if I leave my install disk in my drive. It will say press any key to boot from cd / dvd I just wait a couple seconds, and it boots into windows. Without the disk, I get the grub problem. I have only 1 partition on my HDD, and that is my windows 7 partition, nothing else.
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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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