Ubuntu Installation :: Grub Installation And Revert To Windows Bootloader?
Feb 22, 2010
i've been using ubuntu with wubi, and I'd like to install it on my new hard drive (so windows is on one hdd and ubuntu is on another). afaik, grub will be installed on the hdd w/ ubuntu, and i have to set it to recognize the other (windows) hdd. assuming that i want to get rid of ubuntu and just use windows, what steps do I have to take to do so? (if grub is only on the ubuntu hdd, then would I just have to format it?)
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Sep 4, 2010
i had a dual boot xp/ubuntu first. later i had to format and reinstall xp. this deleted the grub bootloaderplease let me know, how to fix this! please make it simple . i have the live cd, but i don't have internet connectivity in ubuntu.
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Sep 1, 2011
I installed Ubuntu and Windows 7 on my computer. I first get the Windows bootloader telling me choose between Windows or Ubuntu. If I pick Ubuntu, I then get a GRUB loader telling me to choose between different versions of Ubuntu and Windows 7. How do I remove GRUB and just use Windows bootloader?
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Jun 7, 2010
When I try to boot into windows through grub it just returns to the grub menu.also system recovery options from bios just end up in grub screen too.here is boot script.From reading forums I think I need to get grub out of windows partition but I don't know how
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Oct 30, 2010
Anyhow, I'm a n00b to the Linux world, so I installed it on my Windows 7 desktop to dual boot. Current configuration is as such:160GB HDD with 3 partitions: Ubuntu Studio 10.10 on one, Win 7 on another, and the third is for storage.1TB HDD for extra storage.So far, all is well, but I'm not pleased with the default GRUB options and layout. It gives me 4 options to choose:
-Ubuntu Studio
-Memtest
-Memtest Debug Mode (or something to that effect)
[code]....
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Jan 15, 2010
Basically, I used a USB stick to run ubuntu 9.10 live, then tried to install to an external 500gb HDD connected with a Sharkoon Drivelink USB adaptor. The installation went fine, but I get a GRUB error 21 when booting a lot of the time. I figure this is due to the way in which the drive is connected. I am a complete noob, and I want to just ove GRUB completely and restore my Vista bootloader. Unfortunately, I do not have an installation disk as my laptop didn't come with one, and none of the others I have other PC's are the same version (home premium 32-bit).If you know of a way to fix the GRUB issue/sso I can use the external drive I would love to hear them too, but the main aim of this thread is to help me remove GRUB and restore the windows bootloader. If any more information is needed, just ask and I will provide it.HP Touchsmart TX2-1010Windows Vista Home Premium 32-bitExternal HDD:Seagate Barracuda 7200.11 SATAII (with jumper set for 150mbps)
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Jan 26, 2010
I currently dual boot and wish to know how to remove the Windows partition/drive while still allowing Ubuntu 9.04 to load safely as my main OS. I know how to restore windows partition by;
If MBR gets damaged boot from MS Windows Xp disc, Select "R" for "recovery console", select main windows installation drive (admin password usually nothing, just press enter) and type "FIXMBR" this will allow you to boot windows again, but Ubuntu partition will be unbootable and require installing ubuntu again to dual boot.
But this leaves Ubuntu partition Un-bootable as it removes the grub menu, how would I do the same for Ubuntu and make window partition un-bootable so I can remove it?
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Jul 11, 2011
I got a system crippling virus on my windows installation. My recovery disks gave me the same problem. So I installed Win 7 enterprise using a disk my dad got from his work. The installation went smoothly. When I started my computer after it went straight to Win 7 without the GRUB bootloader (not the case with restore disks). Could somebody please help me with this issue because I cant stand using Windows for anything other than games much longer.
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Feb 4, 2009
I thought it would be cool and easy to install Windows 7, ended up being a headache and worthless so far. Now I only have the windows bootloader with vista and windows 7 as options. How can I get grub going again? I have all 6 fedore core 10 cds and a live cd in case those will help, I am using the live cd to play in fedora right now, but I am not sure how to get access to grub.conf and what to change in it, because I am pretty sure I have to add Windows 7 to it.
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Jul 27, 2010
Whenever I load Ubuntu on a machine with other OS(s) loaded it always recognizes and adds an entry in the bootloader menu. Not this time. Well kind of. After the install my windows boot option was in the menu, but after an update it is no more. I see the different Linux images... but no Windows boot option. Can someone tell me how to add my windows XP boot option back to the bootloader? I have XP on the the on the 5th partition and Ubuntu on the 6th...
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Mar 26, 2010
So my computer has ubuntu 9.10 installed 1st and I want to install win 7 in a separate partition. Basically, ubuntu 1st, win 7 later so far from what I learned from search results, grub 2 have problem with win 7 installed later and what was recommended was install win 7 before ubuntu. how ever I do not have the time to start over again because there are too many things to back up or install again. can I simply revert grub 2 to grub 1 again and resolve the problem?
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Feb 5, 2010
I am helping my pal to get into Debian (yes first timer).He is running W7 on a 500G SATA HDD and he has another 250G SATA HDD that he wants Debian to go to.Will Debian install grub on the master bootloader even if the installation is going on a separate hard drive?I have dual boot before but on the same hard drive.
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Feb 25, 2011
Currently I am running a dual boot with Windows 7 and openSUSE 11.3. Windows has two partitions, one for the system partition and another for the OS. I have 3 Linux partitions (swap, root, and home). Obviously I am running GRUB to boot, but this seems to be impacting my ability to install Windows 7 SP1. I would like to revert back to the Windows boot loader, install the Service Pack, and then revert back to GRUB. How do I do this?
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Aug 9, 2009
I recently installed Fedora on a triple boot system with Winows XP and Ubuntu JJ. how to add Ubuntu's grub to the bootloader. Here is the output of Fdisk -l.
[root@localhost rabbit]# fdisk -l
Disk /dev/sda: 250.0 GB, 250059350016 bytes
255 heads, 63 sectors/track, 30401 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes
[Code]....
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Nov 2, 2010
Just got done installing F14 64 and all went well however when I rebooted the machine it boots straight into windows, where is my GRUB boot loader? Only one drive in this machine (sda) and I remember going through the GRUB settings during the install. How to get a bootloader working now because in my linux experience (since RH5) it has always just installed the bootloader and worked. Apparently ext4 is bunk for me and when using LVM settings. I am up and running and grub is working.
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Mar 26, 2010
I had installed ubuntu, then windows xp, surprise surprise I lost the boot loader for ubuntu. I have 2 different live boot cd's one for 9.10 and another for 10.04. My PC would be running 10.04, if I could install grub. When I go to help on the live boot disk menu, it tells me that rescuing a broken system is not enabled on either disk, though I downloaded a full copy of the disk when I downloaded it. What can I do to get grub back onto my computer? I deleted the XP partition hoping that would help. It didn't now the pc will only boot when I have the live boot cd.
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Jul 31, 2010
I currently dual-boot XP and Debian sid. I currently have XP on /dev/sda1, sid on /dev/sda2 with /home mounted separately on /dev/sa3, swap is /dev/sda4. I have free space in both sa3 and 4, mostly in 4, of course. What I'd like to do is add a third partition, either with or without a separate home mount, but have my current grub2 still be the bootloader. I'm thinking I'll give a total of 33 G to it (I keep almost nothing on my hard drive, it's all on the cloud). I want to install Kubuntu and try it out, I've burnt the Live CD and it's very cool.
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Feb 23, 2011
I'm familiar with Ubuntu and the like, and have GRUB 2 installed as my boot-loader. I was wondering if there was any way to get one menu entry to be re-directed to another. Specifically, whenever I select my third menu entry, I want it to execute the code on menu entry 10. My reason for doing this would be that after customizing my GRUB 2 menu, I came into the problem of updated kernels. Basically I would like a single "Ubuntu, Latest Kernel" entry that always redirected to menuentry 10, where my latest "Ubuntu, linux 2.6.xx-x-generic" entry is. In order to temporarily solve my issue, I've set my "/etc/default/grub" file's "GRUB_DEFAULT" to "9", although I'd rather not do this.
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May 26, 2011
I just want to ask if there is a way to make grub bootloader automatically boot to ubuntu every start up. And only make the bootloader appear when I press a certain key(ie. F7) so that I can boot to windows when I do not want to boot on Ubuntu.
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Feb 11, 2010
I was wondering if it's possible to use the windows bootlaoder instead of GRUB to choose between Windows and Linux? If so how?
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Mar 26, 2010
I cannot boot into by Ubuntu 9.1 machine.... Trying either GUI or rescue mode gives me the following error messages (which i copied by hand since they were in cli)
Code: mount : mounting /dev/disk/by-uuid/64e5cb0d-058a-4a4c-af4b-7afb6427a72e3 on root failed : invalid argument
mount : mounting /sys on /root/sys failed : no such file or directory
mount : mounting /dev on /root/dev failed : no such file or directory
mount : mounting /proc on /root/proc failed : no such file or directory
Target doesnt have /sbin/init The only thing i remember doing before this is deleting some bootloader files... but they were on another disk so I didn't think that it would affect my ubuntu install. Guess I was wrong how I can recover my system?
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Aug 23, 2010
I want Truecrypt to ask for password for Windows XP as usual but with the standard [ESC] option, on selecting that, i.e via Escape key, I want it to find the grub for the (unencrypted) Ubuntu install. I've installed Windows XP on the 120Gb hard drive of a Toshiba NB100 netbook then partitioned to make room for Ubuntu 10.04 and installed that after the Windows XP install. When I encrypt Windows XP, Truecrypt will overwrite the grub entry in the master boot record (MBR), I believe (?) and I won't be able to choose between XP and Ubuntu anymore. So I need to restore it back.
My setup:
Partitions:
Windows XP, NTFS (to be encrypted with Truecrypt), 40Gb
/boot (Ext4, 1Gb)
Ubuntu swap, 4Gb
[code]....
The key area of the problem is how to instruct Truecrypt when escape key is pressed, and how the Grub/Ubuntu can be made visible to the truecrypt bootloader to find it, when the esc key is pressed. Also knowing as chaining.
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Jun 1, 2010
I am trying to install Ubuntu10.04 on my machine which already has on it, Win XP. Lemme lay down the setup of my machine first of all.
I got a new 320GB HDD of which I have taken 20GB as the primary partition and installed Win XP on it. Took another 220GB as an extended partition for my data storage. Around 63GB was remaining which I left it as unallocated. Decided to try Ubuntu, but preferred to boot it from the windows bootloader. Downloaded and burned the Ubuntu-10.04-desktop-amd64.iso(have a AMD x3 425 machine) and tried an install on 30GB of the 63 left.
I did not try any partition scheme. I chose the manual partition option, made a 28GB ext4 partition, made it primary, mounted the /, took another 2GB for the swap and proceeded. Chose advanced option and installed grub on the 28GB(/dev/sda6) and completed the installation.
Since no grub was installed, Ubuntu was not available. So then, used the bootpart utility to point grub to the windows bootloader, but it did not work, was giving me error when I chose Ubuntu from the bootmenu modified by the bootpart.
So tried booting with the same install cd, chose Live Ubuntu this time and mounted the 28GB, copied the first 512bytes using dd if=/dev/sda6 of=ubuntu bs=512 count=1 to a usb drive. Rebooted into windows and copied the file to C: and added it to the boot.ini. Rebooted and tried choosing Ubuntu from the boot menu but it does not work. I get a blank screen with the cursor blinking.
The machine is new and BIOS is LBA enabled by auto.
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Sep 23, 2010
So here's the skinny, I have Windows 7 home Premium installed on my Touchsmart PC. I have a 60 GB partition I want to use for Ubuntu. Can I install Ubuntu to that partition so that it doesn't change how my computer boots up already?
Example:
I press the power button. The POST test processes and then boots into windows no questions asked, as if it's the only OS on the system.
I want to keep it that way even after Ubuntu is installed.
I want Ubuntu ONLY accessible by using the BIOS boot menu as soon as the PC starts up.
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Nov 30, 2010
I was wondering if i could reinstall the windows bootloader with the ubuntu installation cd..because with the current ubuntu installation the windows 7 installation dvd doesnt load up. when i use a windows xp cd, the computer tells me that there is no active hard drive. other linux distros work just fine
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Aug 19, 2010
I'm having an issue installing Ubuntu with Windows 7 Home Premium 64-bit through Wubi. The Wubi installation works great and Ubuntu seems to install after the first reboot after selecting Ubuntu from Windows' boot menu, however whenever I select Ubuntu from Windows' boot menu after Ubuntu installs and it reboots for the second time, it loads the GRUB bootloader, however Ubuntu isn't listed at all.
Windows 7 is listed twice and Windows Vista is listed (seems it picks up the recovery partition for Windows 7 as Vista) and when I select the first Windows 7 from the GRUB bootloader, it just goes back to Windows' boot menu with Windows 7 and Ubuntu as the selections. If I select the second Windows 7 from the GRUB bootloader, it'll boot Windows 7 like normally. It looks like Ubuntu is nowhere to be found. Because of that, I just ended up uninstalling it.
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Nov 11, 2015
I have an issue after the installation of debian 8.2 on an usb flash drive:
I had debian 8.2 and windows 8.1 running on a single SSD. Everything was fine. I wanted to install a second debian on a 32gb USB flash drive as a live system. After the installation I am not able to boot my debian (SSD) without the flash drive plugged in. I only get a grub rescue prompt. Booting windows still works. It is also possible to boot both debian systems if the USB drive is plugged in.
So it seems to me, that the debian bootloader was accidently installed to the USB flash drive and the original bootloader on the SSD does not work properly anymore. I used a netinst image from a second USB flash drive to install debian to the first USB flash drive.
Update fdisk output:
/dev/sda1 2048 2050047 2048000 1000M Windows recovery environment
/dev/sda2 2050048 2582527 532480 260M EFI System
/dev/sda3 2582528 4630527 2048000 1000M Lenovo boot partition
/dev/sda4 4630528 4892671 262144 128M Microsoft reserved
/dev/sda5 4892672 223840255 218947584 104,4G Microsoft basic data
[Code] ....
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Jul 19, 2010
I'm relatively new to Ubuntu, I've installed it in Virtual Box and through Wubi on other computers but this was the first time that I've done a live install on my production computer. I had problems from the get go, I was using a Live CD of 10.04 (64 bit AMD) to install it and when it got to the part about choosing a partition no drives would show up at all. Eventually after some searching around, I discovered that Using an Alternate install CD would work. I did that, installing Ubuntu into one of the free partitions I had set up prior to this. Eventually my system turned on but the monitor went to sleep so I had to hit E on the grubmenu and change something to nomodeset (or something like that) so that I could see the screen. I installed Compiz and it was all good from there.
Except for One issue, I cannot boot Into windows at all, it doesn't show up on the bootloader even though the partition shows up in Gparted. I've tried updating Grub2 with no results, here are the results of Sudo fdisk -l
Disk /dev/sda: 400.1 GB, 400088457216 bytes
255 heads, 63 sectors/track, 48641 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: 0x1549f232 .....
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Nov 11, 2010
I have grub installed which boots both my ubuntu and windows which are in seperate partition. I'm about to format my windows, will it affect anything? Like though my ubuntu will not be formated nor the bootloder but shouldn't the windows bootloader overwrite somethign and make it default? Thus making ubuntu impossible to boot?
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Dec 5, 2008
I know practically nothing about Linux but am trying to learn. I actually want to get certified Linux+. So I figure this forum would be a great resource. Anyway, I have a dual boot situation going on my laptop with Windows XP and Ubuntu, and am pretty frustrated that I seem to forced to use GRUB. I really dont feel like reinstalling. Is there a way to simply change it back to using the Windows bootloader?
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