Ubuntu :: Won't Boot - Using Live CD To Recover
May 27, 2010
I'm not at all sure what happened, but now Ubuntu won't boot. A program just froze (as programs often do), so I shut down and rebooted, only to find pages and pages of gibberish about ATA sectors and stuff when I tried to get GRUB to load my usual Ubuntu platform (Karmic Koala). I tried "recovery" platforms and older ones, but no luck. I'm now using the Live CD and I've found an error saying "DISK HAS MANY BAD SECTORS" about my '160GB ATA Hitachi HTS542516K9SA00'. It apparently has 109 bad sectors, and the Live CD's assessment is that I "replace the disc".
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Mar 1, 2010
So here is my problem:
I'm trying to restore the grub using a ubuntu 9.10 live cd. I have two partitions in my computer, and i used the partition that contained Vista to install windows 7. Now, i'm trying to restore the grub so that i can also boot ubuntu.
When i do "sudo fdisk -l", the output is:
Disk /dev/sda: 120.0 GB, 120034123776 bytes
138 heads, 12 sectors/track, 141571 cylinders
Units = cylinders of 1656 * 512 = 847872 bytes
Disk identifier: 0x0fb3cfe1
[Code]....
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May 25, 2011
A recent update messed up my Ubuntu (actually Xubuntu) laptop, and so I want to recover a few important files off of it before reinstalling the OS.I cannot boot into Ubuntu on my hard drive, so I put in one of my Live CDs, but couldn't figure out how to get the files from my hard drive.I googled the problem, but all the solutions talked about recovering Windows files with a Live CD.I need to recover my files that were in Ubuntu
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Mar 25, 2011
Ubuntu 10.10 has crashed and I'm resigned to a re-install, however is there any way to recover or access my files via the CD, live, during install or after ?
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Apr 13, 2010
I haven't run into this with ubuntu before. I am trying to recover some files from a damaged hard drive and when I try to use the no change to computer option I get to a log in screen. But, I don't have a user name or a password at that point.
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Feb 21, 2011
My system got crashed yesterday. Before I do any mess up with it I would like to backup some important scripts stored in it. With so many live cds available I am confused which one is to choose. It should not be too big (in terms of mb). Any small Live cd will do.
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Sep 8, 2010
I just downloaded, burned, and tried the ISO image. only to find out it's not a bootable, live CD, but rather a Windows program, ie. it requires booting into Windows and running it from the CD, which is not a good idea since the first thing to do in this case is to quit the OS to prevent it from using those newly available sectors to write new data. can a Linux-based live CD try and recover files recently deleted in an NTFS partition?
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Mar 30, 2010
I have window 7, Ubuntu and Cent Os installed in my system. I was actually trying to change boots options but unfortunatly i lost all boot entries. Is there anyway i can recover all three boot records.
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Feb 14, 2011
Had Ubuntu 10.10 running fine on a Dell box, shut down as normal earlier in the week but now won't boot from GRUB (ends up with Busybox screen and initramfs(?) prompt). PC is a dual boot system which still boots OK into the XP partition on the same hard disk. I've tried all the other Unbuntu boot options in the GRUB menu (older kernels and the 'recovery' / non-recovery options) but all produce the same failure to boot into Ubuntu. I've searched the forums and tried various things but nothing has worked so far.
I tried the fix of booting from an Ubuntu 10.10 live CD, creating a mount point and mounting the relevant linux partition before using #apt-get update and #apt-get upgrade options to repair the installation. This seemed like a logical simple solution BUT the partition will not mount!! Further investigation using the Disk Utility app in the Ubuntu drop down menu indicated an error message along the lines of 'cannot mount Daemon inhibited' which I can't seem to find much information about fixing.
Using Gparted it looks like all the partitions originally set up on the disk are still there.
I put a lot of time into getting the system set up (scanners, printers, webcams and software) and would be really annoyed to have to do it all again if at all possible ...
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Jul 5, 2011
I am running dual boot Linux Mint/Windows 7 Home Premium on a Dell 560s Computer. Recently, had an event which required me to use the Windows 7 recovery CD to fix my mbr and rebuild it. After doing so I discovered when I boot the computer I know longer have the option to select either Windoze or Linux.
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Jan 6, 2011
I downloaded Ubuntu 10.10. Initially, I had the problem on the "Who are You" screen and was told that lower case letters were needed. Long story short, I was given a work-around since there was a partition on my hard drive. Ubuntu installed correctly - works just fine. However, upon booting up, if I choose Windows 7, it takes me to Recovery and wants to reinstall factory specs. What's the best way to resolve this? Is going back to factory specs and then reinstalling Ubuntu a viable option? This is brand new computer and I've downloaded nothing - wanted to make sure everything was working fine before I did that - so I would have no problem with doing that.
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Jun 21, 2010
Previously I'd installed Ubuntu Netbook Remix (Lucid) on my Acer Aspire One 751h netbook. the machine came with XP installed, so I installed Ubuntu as a dual-boot setup. I had various problems with the configuration of Ubuntu (nothing to do with the boot process, and now solved) so I reinstalled it.
What I'd actually done with the second installation was to install it again alongside both XP and the original Ubuntu installation (maybe that was also a stupid thing, but I didn't know it would work like that). When I realised what I'd done, I did the stupid thing, which was to delete the partitions with the older installation and swap file (using the Disk Utility).
After that, the next time I rebooted I went straight into grub-rescue. I don't know much about this, but I found a forum entry explaining the basics, so I can now issue grub-rescue commands that let me boot into Ubuntu. I've run update-grub and my /boot/grub/grub.cfg file looks fine.
However, I think this only kicks in once I've got past the initial boot menu and have chosen Ubuntu (now on sda5 - hd0,5). My problem is that the files/processes that load the boot menu on startup still have the old configuration, so when I reboot I still go into grub-rescue and I get 'partition not found' (or, since I recreated the partitions, 'file not found') and root is at (hd0,7).
Is there a way, once I've got into Ubuntu, of changing the information in the startup boot menu Alternatively, if I copy my entire file system from sda5 into sda7, would that do the trick?
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Mar 1, 2011
I have two partitions Windows XP (which was already installed before Ubuntu) and Ubuntu 9.1 (which I installed later).Now the XP doesn't boot anymore (sorry but I need it sometimes), the Windows screen with the progress bar appears and then it reboots after a couple of secs.
I can access to the XP partition from Ububtu.Of course I don't want to damage Ubuntu during the XP recovery action.
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Nov 9, 2010
My laptop can't boot from cdrom becouse it is broken and it can't boot from USB becouse it has never been able. Ubuntu 8.10 now run in my laptop withgrub 1.I've just try the following trick.1) I put grub4dos in /boot2) I put iso image in /boot3) I add the follwing entrt in source.list
Code:
# =========== GRUB4GOS ===================================
title == Use grub4dos for the following entries: ==
[code]....
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Dec 30, 2010
i do software (learn keyboard) for blind people. I selected ubuntu and festival and TTS. Please i NEED (mandatory for disabled people) live cd what can be inserted into cdrom and everything is done - automatic boot, settings done, software is on start-up... created own distribution, programed software, done settings, but what kills me is : How i can run AUTOMATIC (without asking, no enter) boot from CD-ROOM. Now CD asking :
- 1) What language want you (here is only czech) - need ENTER (killer for disabled people)
- 2) Boot from CD or hdd - need ENTER (killer no. 2 for disabeld people)
- after 2) I m ok, i can handle it myself, works.
I edited file in isolinux menu.lst etc - I can edit text but i do not know how run defalut choice automaticly. timout 0 does not work I spent a lot of hours reading tutorials grub/isolinux and have nothing ...
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Dec 12, 2009
I recently installed 11.1 via unetbootin from the network onto an old Sony VAIO laptop. After the installation completed, I suppose the OS started to boot, but I was presented with a black screen. I heard "chimes." The black screen does not provide any visible feedback from mouse or keyboard input. I hard rebooted and was presented with an interesting background graphic (grayish, I think) that faded to the same black screen.
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Jun 7, 2010
I wanted to know the solution that if my linux crashes then can I recover my windows in adual boot env.
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May 23, 2011
I have a dual boot Acer Aspire One, after reinstalling Windows back to "original factory", the way it was straight out of the box, it now will not boot up at all. It goes to the Windows start screen goes blank, and loops there infinitely. Is there a USB tool I can use to figure out what went wrong and recover either my Windows or Linux partition with out having to do a complete reinstall?
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Oct 16, 2015
My laptop setup is:
sda1: W7
sda2: FAT16
sda3: /boot
sda4: encrypted LVM with debian (everything besides /boot)
now I've re-installed W7 so grub was overwritten. I've tried the procedure which worked for me previously:booting with the netinst usb in rescue mode, choosing a root partition to mount, using grub-install to reinstall the grub:
Code: Select allmount /dev/sda3 /boot
grub-install /dev/sda
Now I'm on Jessie (stable), and this time this fails, and I am able to mount only sda3.grub-install doesn't exit so I'm assuming it has been replaced by `grub-installer'. also '/boot' doesnt exist so I created it manually.
Code: Select allmount /dev/sda3 /boot
grub-installer /dev/sda
The latter fails with
Code: Select all/dev/sda/proc not a directory
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Nov 19, 2010
I would like to recover my grub installation in a dual boot system. if there is an easy way to recover grub using flash disk? If yes is your suggestion opensuse developed? (currently running 11.3) . It would be nice also to have some gui just to make things easier. If not I assume that then the only option is the boot from dvd. Is that right?
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Oct 25, 2010
I let a 'friend' use my laptop over the weekend. Now when I turn it on, it loads the BIOS details, then says no active partition, then no OS cannot be found.
It looks like they have deleted the partition with SuSE with the Grub Loader.
I cannot load up SuSE or Windows 7!
Any ideas on how to recover the boot to load Windows 7?
I have tried using the Windows 7 install disc to repair - but it does not recognise that Windows is installed and wants to do a clean install only.
Is it worth trying to reinstall SuSE and hope it detects Windows on the other partition? (I assume it is still there!)
I cannot get to a command prompt.
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Aug 7, 2010
I'm running dual boot with Vista and Ubuntu Lucid Lynx. for few days i was running Ubuntu only, downloaded some files and created some directories. few minutes ago, i switched to Vista to see something and i wanted to burn some of the files i downloaded using Ubuntu but couldn't find those folders.
i thought maybe its related to different file system or something so i switched back to Ubuntu and surprise! my folders are not there, instead i got a file, of unknown type with the same name as the folder had! in another folder case it's was an image (some print screen of my browser screen - Mozilla) and again with the name of what was the folder! first - what the hall had happened? second - can i recover my data somehow?
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May 7, 2010
I have a laptop I don't seldom use, which I want to reformat. I decided the best way to do this was to put Ubuntu on it, since I really just need it for web browsing and a bit of downloading, but I can't seem to do it.
Every time I put in a Ubuntu Live CD, it doesn't load at all (which I assume is an issue with the laptop), so I mounted the ubuntu ISO onto a flash drive, and tried to run it off there.
That worked fine to start with, but I could only get as far as the first menu, I couldn't actually get into the live CD to install it, and I can't think of any reason why.
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May 27, 2010
From some reason I cannot boot from a livecd. I was able to load the vmlinuz and the initrd.img from the cd. The CD even got to "ready.".Nothing happened after this. This is with a liveCD and a liveUSB.
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Jul 2, 2010
I downloaded the most recent version of Ubuntu (10.04) and burned it to a CD to be used as a live cd. While it attempts to boot during startup, it does not get far. I get a maroon colored screen with a diagram at the bottom that looked like a stick of ram (although it could have been something else, I guess), an equals sign, and then a man in a circle.
After that, it goes to a black screen with a flashing underscore at the top left, until it turns completely black forcing a restart. The monitor has not lost signal.
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Sep 5, 2010
I am running windows 7 ultimate... I have changed the boot order to CD 1st... I have tried at least 3 times and it always goes on to the Windows logon screen... I have Phoenix bios version 6... I have an Asrock mother board with an AMD Athalon 2600-- 1 gig of DDR ram-- ATI XL vga card... I downloaded the newest Ubuntu release to my desk top... I tried the suggested Burning software (no luck) I tried CDburnerXP (no luck) finally I used the Windows ISO image burning software and (success) the CD was created... But no joy... The PC will not boot to Ubuntu.
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Sep 20, 2010
I recently downloaded Ubuntu 10.04.1.The thing is that as i have a VAIO notebook with Nvidia GeForce 310M graphics, the Nouveau driver does not recongize it and so it gives me a black screen (Actually it's more as if the display is off)The thing is that I think that if I disable Plymounth, the computer should boot normally.
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Jan 7, 2011
I've only been checking it out for the last day or so. Got 10.10 (Maverick Meerkat), and I thought I'd boot from live USB cuz in theory I'm led to believe that I would use less RAM being a solid state and all.
So, I tried like 2 programs to create a live USB with persistence, including the one that comes with Ubuntu 10.10 that I found in "System > Administration > Startup Disk Creator". When I boot from the USB it shows the Ubuntu loading screen thingy, and when I press.. anything I think, it displays the error:
(process:365): GLib - WARNING ** get pwuid_r(): failed due to unknown user id (0)
(Don't know if I got all the spacing in that right, but I'm sure you get the gist of it) And it doesn't get any further that that. So I burned the ISO to a DVD and it works perfectly. I want to be able to use the USB though cuz I need my DVD writer for anything that involves CDs or DVDs or the like.
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Feb 1, 2011
I am trying to repair my wifes Gateway laptop, model# MT3707 with vista on it. Vista won't load, it hangs at crcdisck.sys. I was going to try and fix the problem by booting to my Ubuntu 8.04 live CD but it starts to load and hang just like the windows OS. My live CD has worked just fine on other computers. I don't know alot about computers but have been researching this problem and I find this is a common problem with some of the Windows OS with few solutions. Some think the problem is in the .....crcdisk.sys but I believe the problem is in what loads next, and I have no idea what that is.
My believe the problem isn't in the harddrive because it happen to my live cd which is using the cdrom drive. Could the problem be in the BIOS? Some History. I have a Compaq laptop that has a dual boot Windows Vista and Ubuntu 8.04. I did remove the harddrive from the Gateway and was able to mount the drive using Ubuntu and an USB cable. I saved all the files my wife needed off the Gateway harddrive. This is leading me to believe the problem could be a hardware issue.
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May 22, 2011
I created a live usb ubuntu (11.04) system on my usb drive. I set it to have some persistant space. I set the home directory to be encrypted (this was a mistake).
Anyway, this was about three weeks ago. Since then I have been doing some very important work on it that I cant afford to lose.
Yesterday when I booted up it asked for my password as usual but then came up with a load of errors about not being about to mount various directories. There was a word beging with ice. It finished booting up but there were no menu items or task bars or anything. Just a blank ubuntu background graphic with the cursor. I shut the machine down and tried again. Same problem. Panicing a bit I tried rebooting again. This time it asked me to create a pass phrase (a step I had foolishly skipped when I first set the machine up). I typed in a passphrase It then booted up but again no just an empty background with a cursor but nothing to click on. So I rebooted again. THis time it again asked for a passphrase which I again entered. Same problem. Empty background with nothing on it.
I decided to give it one more try at booting up. This time i get to the screen where you select if you want to install or live boot. If I live boot I get the 11.04 booting splash screen with the four dots underneath and it gets no further. This is the state it is currently in.
I decided to try something different. At the screen where you get to choose between booting from the live usb and installing it I decided to install the system on my laptops hard drive. This went OK, and botting from the laptop hard drive is fine. So the linux image on that usb is OK i thought.
I then put the usb drive into my ubuntu 10.04 desktop (i idn't trust the 11.04 copy I had just installed on my laptop's hard drive). I used the ubuntu disk utility to check the usb filesystem and it comes back as having no errors. I can look at the folders on the usb drive just fine. But obviously cannot access the home directory as it is encrypted.
Anyway, I ran fsck and it comes back with "there are differences between boot sector and its backup." about 500 differences are then displayed. I tried the option for copying the backup to the original but it comes back with "Leaving file system unchanged". I tried this several times. I tried running fsck in automatic mode but it came back with "not auto fixing this"
Now I guessed that I probably cant load up this encrypted file system without a passphrase. But I gave this: a try [URL]
it fails on the line # mount -o bind /dev $D/dev with the message
mount: mount point /media/chroot/dev does not exist
why am I getting that message when I have followed the instructions to the letter?
Anyway, I wondered if perhaps my usb port on my laptop was messed up so i tried booting the usb from my desktop. Same again. 11.04 splash screen and hangs there.
I think the only thing for me to do is trying to find out how to mount the encrypted home folder without the passphrase. Is this possible. That link I posted above seems to just require the username and password which I have.
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