Ubuntu Installation :: Accidentally Installed 2 Bootloaders
Apr 2, 2011
Just installed Ubuntu 10.10 as a dual boot on my Windows 7 Ultimate machine, and it's working quite nicely.However, when booting windows, I have to go through a second, extra bootloader to get there.The first is less pretty, and has lots of options (grubv1.98+ 20100804- 5ubuntu3), the second is prettier and has just 2 boot options, Windows and Ubuntu. It's not crippling, but it is annoying to have to go through two, and I'd like to get rid of one.I think I know why this has happened; I installed Ubuntu from Windows using the wubi installation program, then decided that wasn't what I really wanted to do (I'd cleaned out an entire hdd partition specifically for Linux, so having it embedded in a Windows file seemed unnecessarily complex). I deleted the install manually - NOT with the windows uninstaller, stupidly, as I didn't realise that was possible. Presumably, this did not remove the bootloader. I then installed ubuntu from CD on my empty partition.I haven't tinkered with it too much, as it works currently and I don't want to risk make things worse by not knowing what I'm doing. Firstly, has this happened for the reason I think? Is there a way to delete just the second, presumably obsolete bootloader without damaging the first? I was considering doing a quick reinstall from Windows to allow me to do a proper uninstall, but I really don't want to risk ending up with 3 bootloaders!The obvious, long approach is to start fresh by letting Windows rewrite the MBR with a rescue disk, and then install ubuntu just once - is this the best option? Would this even work?
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Apr 28, 2011
In the beginning there is MBR. MBR looks for the active partition and tranfers control to the VBR of the active partition. MBR is where grub may be installed. which allows the user to choose an OS(a VBR) I am not sure what the program in the VBR does,but it manages to loads the OS. What am I trying to do: Backup. I ma tired of losign my partitions my bootloaders. I want to backup them all! partitions/MBR /VBR everything short of creating an disk image.
My questions:
1. say the ubuntu partition is formatted, will grub still load? if not is there a bootloader that would?am I making sense? i hope so...
2. what exactly does the VBR contain ?
2. How do I go about backing up? The mbr and the partiton table are backed up with a simple dd command. Then what else needs to be backed ? VBR's of every partition?
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May 30, 2010
I recently started an installation of Debian Lenny. During the install, I accidentally chose to install "Desktop environment" when I meant to de-select it (I hit enter, which was obviously the wrong key to de-select) so what should I do now? Should I restart the install, and be more careful the next time the task selector comes up? Should I let it continue, and uninstall all the X stuff afterwards (and how would I remove ALL of the stuff installed with the "Desktop environment", 10GB hard drive
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Jun 18, 2010
Is there any software for Ubuntu that can bring the files all back?
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Nov 14, 2010
While installing XBMC, which was working with my standard Ubuntu install, I accidentally installed NVidia hardware acceleration (sudo apt-get install libvdpau1 nvidia-185-libvdpau) on a notebook with ATI video.
Now XBMC does not work and says it requires OpenGL. apt-get remove does not work for that package because it's transitional. how I can get my stuff working like it was?
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Apr 24, 2011
Modern systems seem to be EFI based, and while there's a specific version of lilo that works with it, i can't seem to find any mention of a efi varient of grub (edit - on modern debian derivative systems there's grub-efi. Most references to it seem to be about various bugs in/for it tho) . In general, how well is EFI supported on linux?In addition, apparently windows 7 uses EFI to enable faster boot - 12 seconds or so with some systems. While a properly tweaked linux system could probably come close, are there any enhancements to the linux booting procedure that take advantage of EFI?
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Nov 3, 2010
I'm using 10.10, up to date etc. I went into Synaptic Package Manager and installed the package "ldxm" and all its dependancies. Now when I go to log into Gnome desktop, all I can see is my wallpaper. All my girlfriend's files and photos were encrypted in the home directory (or whatever), I selected that option when I installed it.
All I wanted was the new login-screen theme (rather than the rectangular default one) and now I can't seem to revert back I just want to go back to before I installed "lxdm"
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May 9, 2010
i was trying to remove the flash plugin 32bit wrapper (don't remember the exact name of the package),using the command apt-get -y remove --purge and i saw somehow uninstalled a bunch of other programs like the gnome-network manager,emphaty...Now i rebooted and can't log on anymore .Is there a way to repair this,like running an upgrade from the livecd to restore the missing parts without wiping out my conf & other programs ? I've tried this that i found some other forum ,but i didn't work
Code:
sudo mkdir /mnt/repair
sudo mount /dev/sda3 /mnt/repair
sudo chroot /mnt/repair su
[code]....
I'm running a dual-boot with windows 7
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Jan 7, 2011
This was happend to me 2 days ago when updating Ubuntu 10.10 and I didn't notice that 10.10 was unintentionally upgraded to 11.04. After uninstalling 11.04 and reinstalling 10.10, I made a basic tips on how to update your 10.10 without upgrading to 11.04: Simply install some "Important Security Updates" only in Update Manager.
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Nov 1, 2010
I accidentally cancelled the upgrade (ctrl-c) to maverick before it finished on one of my servers. It was during one of the questions about installing an updated config file. If I run "sudo apt-get dist-upgrade", it complains that it can't lock the directory /var/lib/dpkg. What can I do to recover this and continue with the upgrade?
EDIT: forgot to say this system is running ubuntu-server with no GUI
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Feb 11, 2011
I was installing 10.10 x64 today. I wanted to manually partition the disks, since I have a /home partition from a 9.10 installation which I want to keep.Unfortunately, I selected to convert the ext3 /home partition to ext4 and didn't realise it was formatting the partition until it had just begun. In desperation, I pulled the power plug, but now I can't access the partition (using the LiveCD) - comes with an input/output error.What are some strategies to recover the data on the partly formatted partition? I don't think much, if any, was actually formatted.
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Jun 25, 2011
I had a win7 installed on my system first. Then I installed Ubuntu and added grub2 boot option with win7 utility program EasyBSD. But then I accidently deleted win7 boot option from windows loader menu. Now I can only chose to load Ubuntu. How can I restore Win7 loading option? I have Win7 option in grub2 but it returns me to the previous screen, from which I have deleted win7.
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Jul 18, 2010
I was trying to remove the physical volume from an old drive. So I opened gparted and told it to rewrite the partition table. The only problem is I targeted the wrong volume, I wiped the partition table on my 4tb raid5 array This 4tb array has everything! All my movies, tv shows, music. The only things I have backup up off site are my smaller files like documents. I was about to lose my whole media collection.
I did some research and found a solution that I will post here in the hopes that someone will google "I deleted the partition table on my lvm" and be find the solution.You should find in your filesystem a /etc/lvm/backup folder. LVM puts a copy of the crucial lvm information there every time you change the the volume group.
In this folder you will find a file for each volume group. In this file you will find the uuid for all of the physical volumes that make up that group.The first step is to recreate each physical volume with their original uuids. In my case I had only 1 physical volume, which was my raid5 array. My recreation command looked like this:
pvcreate --uuid cLrY02-zrVi-D0Vi-cIPB-6fF5-ed0c-XFF0os /dev/md0
Now I have a physical volume with the same uuid it had before. It is essential that you correctly match up the uuids with the correct physical deviecs.The recreated pv is empty, the volume group needs to be recovered. This is done by using a special tool and the backup file. For me the command looked like this:
vgcfgrestore --file /etc/lvm/backup/raid5 raid5
This tells it to recreate the volume group using the information in the backup file. The backup files looks for the uuid of the PV, which now matches the correct volume. The coordinates in the backup file match up to the data on the array an suddenly everything is back!
When I deleted my LVM partition table I did not damage any of the actual volumes on the volume group, I just wiped out the table of contents. The backup file had the information needed to rewrite this table of contents.
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Aug 24, 2011
My laptop came with Windows 7 on it and a while back I dual installed Ubuntu on it. A few days ok I was looking for some more space and accidentally deleted my Ubuntu partition. Now when I boot up all I get is grub rescue. I've tried reinstalling Ubuntu but whenever I click to install or try Ubuntu it eventually ends up with an "initramfs" prompt.
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May 18, 2010
I need to know where the /usr/bin/X11 link goes to. If someone can post the ls of that directory that would be just as helpful. It is currently referring to /usr/bin/ which means its a recursive link and I do not think that is correct. A speedy response would be nice
I wish to have this resolved before I need to reboot.
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May 20, 2011
I was in the wrong directory when I did a chmod +x *.bin, so now all of my commands in the terminal come back with the error "Cannot execute binary file." From ls, to cd .. I get this error. I seem to be able to do things with sudo, but does anyone know how to fix all of my permissions so that basic terminal commands come back?
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May 28, 2010
I have accidentally deleted the contents of sudoers file (while trying to add a line through CLI).Anyway, I'm still logged in and can please someone paste me the default contents of the sudoers file on Lucid Lynx
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Jul 6, 2010
I have a problem with my ubuntu linux, the first thing I accidentally delete a status bar on linux. but after that I ca to restore it. the status bar is there again, but strangely , now status bar can not keep a WORKSPACE. if meminimaize window, the window will disappear by itself and did not return. anyone can help to solve it?
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Dec 13, 2010
So I created a shortcut for xkill and I entered it and clicked on my desktop. Now whenever I boot up Ubuntu, I just get a terminal prompt. No GUI at all. What should I do? By the way, I'm running 10.10.
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Dec 25, 2010
I've a little experience about Ubuntu. I'm using Ubuntu with Windows 7 as dual boot for 1 year. Three days ago I decided to upgrade my Ubuntu version to 10.10. I've created a live version of installer on my USB stick and I've successfully logged into live version.After some time I clicked install and accidentally I gave a command like install Ubuntu to all hard drive. Installer have given error and denied to continue but it has removed the partitioning records from hard drive. So as you guessed everything within hard drive have got unreadable everything until here is the story part. I've written in order to inform the reader.
After a few hours of searching around, I've discovered a miracle called Testdisk. Following the instructions carefully I've managed to return partitions except the System Allocated space of Windows 7 which exists on the starting 100MB of memory. But I'm able to see my files within C: drive of Windows 7Then my problem has became logging into Windows. Somehow I skip following the instructions on the website of Testdisk and I've used the command called 'Write TestDisk MBR code to first sector' so at that moment my first sector was the C: drive of Windows 7 where OS was originally installed and where my files are kept. So I cannot see the files within C: because the starting bytes set to something else and I want to undo what I've done so far.
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Dec 26, 2010
Just like the title said, I was fooling around with different workspaces - seeing if I could close a program in one workspace while working in another - and I seem to have either deleted or hidden all of my workspaces!I've already tried the gconf commands and they don't seem to work at all.I'm running 11.04.TYOK... a quick update. I can get to my other workspaces using ctr+alt+ right arrow, so the workspaces are still there, I've just hidden or removed the switcher applet!
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Dec 27, 2010
I have Ubuntu 10.04 Lucid Lynx. I recently started messing with the desktop environment, going from GNOME to Ubuntu Studio to Netbook Remix... and then I decided to remove the Netbook look and go back to Studio, by removing it through the Software Manager. But this seemed to remove any and all desktop environments present. So now I just have the xterm. This was not part of the plan. I can get the Software Manager up and running, but I cannot get packages. I could try to provide the exact error message I get when I try, though I'm not entirely sure how to bring it to you. Is there a way I can get a desktop environment back after such a screw-up?
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Jul 1, 2011
I accidentally formatted my Win 7 partition. I there any possibility of recovery? Failing that, is there any way to salvage files etc?
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Aug 4, 2010
I am trying to install 10.04 32bit onto a new 1.5TB harddrive. I had previously installed 10.04 64bit on an old drive in the same nmachine. I partitioned and formatted the new drive using the old system. I have a couple of windows partitions and restored Win2K images to them, 4 formated Ext3 partions for whever flavour of Linux appeals to me a swap and two huge NTFS Data (home) and work areas. I installed Grub on the new drive, it also has its own partition for boot config files. The old drive has now gone.
Grub2 boots OK and gives me option for all the OS's even the one that are gone, thats OK I can fix that later with grub-update. Win2K boots fine and I see my NTFS partitions.
Now I boot from the Live i386 CD and chosse to install Ubuntu. The only thing that not allowed to default is where to install. Specify partition manually, Choose a spare 20GB Ext3 and the swap is already there too. I let it reformat to Ext3 and mount as /. (In Advanced I let the install boot loader default to ticked on /dev/sda )
The install goes OK until I hit the pop-up "Installation Failed". The installed encountered an unrecoverable error. A desktop session will be run etc etc..
I have tried this at least 10 times no. I downloaded and cut a new CD even though the old one worked fine on another box. Tried unticking the boot loader. Disable the floppy, removed the floppy.
I am relatively new to Ubuntu. Where do I look for the cause of the problem? I'll cut and paste the install log files in a moment.
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Apr 13, 2010
When I try to run almost any command with sudo, it returns sudo: command: command not found. When I run sudo echo $path, it returns a blank line. Is there a command to set its path back to the default?
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May 6, 2010
I did something stupid and i don't know what i did or how to fix it. For some reason every time i click within the contents (not the title bar) of a window (for example; firefox, transmission, nautilus, terminal, basically any running application) and drag the mouse while holding the left mouse button down the entire window moves instead of the expected behavior (selecting text in firefox, moving a file in nautilus, selecting a torrent in transmission, clicking checkbox in system preferences, etc).
This is the expected behavior you would get from clicking on the title bar but not the contents of the window. Right before this happened, i had installed Xephyr and Sugar emulator (for XO OLPC). In the title bar of the Sugar emulator it said to push "ctrl + shift" in order to grab/release the mouse - I had issues getting the mouse successfully grabbed and released - this is around the time all of the problems started.
I have since removed Sugar and Xephyr yet this problem remains. It appears that i have somehow toggled a setting to make moving windows the default behavior when clicking.what i did to cause this to happen and what i can do to fix it? I don't want to have to reinstall. p.s. its not a stuck key - i have rebooted multiple times and the problem remains passed reboots.
p.p.s at the login screen the behavior is not present, you must hold ALT while clicking on the login window in order to exhibit the behavior. However. once Gnome is loaded you no longer need to hold ALT to window the move, it just defaults to that behavior.
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May 27, 2010
Using kubuntu 10.04, I accidentally disabled networkmanager on startup for one of the users of my system. This user now has to manually start networkmanager each time after logging in. How can I make kde run networkmanager automatically again?How this happened: when I started a parallel session as an other user, while already connected via networkmanager in my own profile, kde detected this and asked something along the lines of "There's already a networkmanager running, run networkmanager automatically in the future?" Since I was a little confused, I clicked "no", and that's how things are ever since. I thought there would be some system setting that would allow me to restore this setting, but I haven't found it yet...
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Dec 16, 2010
Not sure what I did, but the nice widget showing my desktop on my new Kubuntu install is no longer on my desktop (the widget showing a window of the current desktop contents). How can I add it back?I've looked through widgets and panels, not sure what I did
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Jan 5, 2011
I'm a Ubuntu 10.04 user.I accidentally deleted the Help Icon that is near to the Applications/Places/System tab and I can't find a way to add it again. I tried to right click on the panel, then I clicked "Add to Panel" and tried to find that icon, but it was not there.
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Jan 11, 2011
When I installed Ubuntu, I had two panels.The first one has application, places, system, shortcuts and time.The second one had all of my icons and when I minimized an app, I could access it off of the second panel.I have closed this second panel and don't know how to restart it. Now when I minimize an app (eg browser), I have to press alt-tab and toggle through the open apps until I get to the one I need
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