Ubuntu :: Edit Grub Of 10.10 From Windows Partition?
Apr 25, 2011
I have a dual boot system. a 200gb hd with ubuntu 10.10 and windows pro on 100gb hd. the problem im having is the 'black screen' error.
When i boot ubuntu, it boot fine but it shuts off my screen cause its not supporting my video hardware which is a geforce 6100 or something.
I know the fix is to change grub to support older video architecture. Something like changing line 'GRUB_CMDLINE_LINUX_DEFAULT="QUEIT SPLASH NORNODESET"'
But how do i change the grub when the screens off? i can't, right. Is there a way i can change the boot parameters of ubuntu from my windows boot or maybe from the ubuntu virtual desktop?
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Feb 3, 2011
I'm dual boot with Vista(TM) and UBUNTU(tm) and ran out of space on Ubuntu partition:I booted Ubuntu 10.04LTS live CD and shrank the VISTA. It would NOT let me grow the extended partition? So now I have:
sda1 ntfs /media/TOSHIBA_SYSTEM_VOLUME 1.46GB
sda2 ntfs /media/SQ004588V03 88GB
sda4 ext3 THIS IS MY NEW PARTITION 15GB
[code].....
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Aug 30, 2011
I am currently running a dual boot machine with Ubuntu 11.04 and Windows Vista.Is there any way I can delete the Linux partition and Grub boot loader without affecting the Windows partition at all?I would also like to be able to repartition all of the space that was previously occupied by Linux.
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Jun 29, 2010
I just did a fresh install of Lucid Lynx 10.4, but now whenever I boot up, at the boot loader, Windows 7 is no longer on the list. I want to now how to properly edit grub.cfg in /boot/grub so that I can boot into Windows 7 from the boot loader. The Windows partition is found in /dev/sda2. The folder name is 2EB2621EB261EB33. If anyone could tell me how write the entry in grub.cfg for Windows 7 to boot that would be awesome!
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Nov 27, 2010
So I need to become the root user in order to edit a grub file in a seperate partition, so I can get back into this partition. How can I become and stay as root user in the desktop environment? (I know you shouldn't do this, but I need it.)
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Feb 18, 2010
I have been trying to edit grub to make windows vista the default but whne i got to the menu.lst it is blank. I use this from the official guide gksudo gedit /boot/grub/menu.lst and it still comes up blank as well as sudo gedit /boot/grub/menu.lst
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Mar 16, 2011
my issue is that i want to boot from windows boot loader neither than booting form grub loader...
I have installated windows and then installated red hat...I am able to login to windows and red hat without any issue but my prob is to load red hat and windows from windows boot loader...
Can u guys tell me where to edit and configure the files.
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Nov 1, 2010
I got ubuntu 10.04 lucid lynx along with windows (dual boot) and using Grub. On my computer, I have my C:/ (programs) and D:/ (data). I've never used my D:/ before that day that I've lost my windows partition on my grub menu. I usually use my D:/ with windows. The first time I used my D:/ to store data with linux, I lost my windows option in my grub menu. I'm not sure what I did wrong but I do want to restore my windows option in my grub menu.
After "fdisk -l",
I checked in /boot/grub and there is no menu.lst to modify. how I can get back my windows option in my grub menu ?
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Mar 9, 2010
is it possible to use a Windows-based recovery partition on a dual-boot computer to overwrite the Ubuntu partition and remove the GRUB loader? For instance, if you booted up your computer, accessed the hidden recovery partition and used it to reset the computer to it's factory default settings, would that effectively remove the Ubuntu partition and the GRUB loader? Would a completely new installation of Windows overwrite/uninstall Ubuntu and GRUB automatically?
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Nov 20, 2010
my Setup is Fedora 14 x64 + radeon hd 4830 i've downloaded .run package from ati site with latest driver for x64 systems. installed it, but didn't edited grub.conf becouse i didn't understood anything there (probably didn't spent enough time to get things understand) Now i've lost possibility to enter my Fedora system. during boot it lost it's modern blue boot screen (with filling drop), it was replaced by standard old boot screen with triple-color stripe. after this boot screen monitor start blinking going on and off. and on last step i'm getting "Fedora 14 boot bla bla bla something" on screen. nothing works except Ctrl+Alt+Delete. system reboots showing successful daemons shutting sequence. How can i edit grub menu from initial grub screen is it possible to it's own 'e' option or 'c' from grub command line?
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Feb 18, 2010
I was installing Ubuntu on my new laptop (with plans to dual boot with Win 7) and, I'll admit, I did something stupid. You see, there was a 1 meg free space before the Windows 7 'hidden partition' and it was driving me nuts. So, what I did, was use gparted to move the hidden partition to the start of the drive (yes, a 1 meg move). Install of Ubuntu went off without a hitch, but after reboot things went a bit differently. The Recovery partition shows up as a possible boot partition in GRUB, in Windows 7 I can now see the recovery partition as a normal NTFS drive, and I can no longer use the features that the partition gives. I know this might be more of a 'ask on a Windows forum' question, but I was hoping someone else had done something like this and knew how to restore the hidden partition to being, well, hidden.
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May 12, 2010
So how can I (e.g. after using dd) boot to this dd'd Windows Installation partition with Grub?
I just want to do this as installing Windows from Hard Drive is much faster.
E: The solution was Unetbootin. Did nothing special myself (defined the .iso path and the partition (/dev/sda4)), the app did all the work.
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Jan 7, 2011
I messed up my mbr by deleting my other drive which I guess had the MBR for both my OS (2 Windows 7's). So i installed Ubuntu in an attempt to fix it all hoping to get the GRUB. It then booted directly into Ubuntu.So I ran bootsect.exe tx the mbr and it said success.Still boots into Ubuntu directly without and grub.
I ran sudo update-grub
Found linux image: /boot/vmlinuz-2.6.35-22-generic
Found initrd image: /boot/initrd.img-2.6.35-22-generic
Found memtest86+ image: /boot/memtest86+.bin
done
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Jun 26, 2011
So, I'm stuck in GRUB rescue mode (stupid mistake) on a dual booted netbook (so no cd and no recovery software)
I do have a Live USB so I'm working off that.
Is there a way to reinstall the GRUB to my other partition (windows 7) or fix the MBR without recovery software?
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Jan 30, 2010
I was defraging windows xp and the power want off now I can only boot into ubuntu from Grub.
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May 1, 2010
I've been using Ubuntu for 6 years now as my major OS, dual booting with Windows. (just in case...)
I am now ready to completely abandon Windows as all the music editing and video creation tools I could not live without are available in Ubuntu and working great!
QUESTION: If I format the C: Windows partition, will I still have the GRUB to choose Ubuntu from? (I'd like to get rid of GRUB altogether to speed up my boot time)
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Dec 8, 2010
I installed Ext2fsd from windows XP because I needed access to a text file on my ubuntu install. However, it didn't work because the drive is ext4 and all it listed was the root folders (/home, /var etc..) nothing any deeper.
I closed the app and continued working in windows.
Today I went to start my computer and it loaded the grub-rescue> prompt. I immediately tried to run "help" to find out what happened, however, grub reported the command as unknown.
I then ls and got a partial listing of the partitions.
Code:
(hd0) (hd0,5) (hd0,1) (fd0)
So what do I do? How do I recover my linux partition? If the partition is bad - then how is the bios able to find the grub-rescue> prompt?
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Mar 8, 2011
I just installed ubuntu on a partition on my laptop that already had a windows7 partition. First I had Kubuntu installed, but I decided to just try Ubuntu instead. I did things the right way when I installed Kubuntu and I could switch between OSes on reboot. Then when I installed Ubuntu I accidentally put grub on /dev/sda1 instead of /dev/sda. I didn't even notice for a while because I never felt like I needed to go back to Windows until I felt like playing starcraft 2. That's when I noticed that when the boot options screen appears and I select Windows, the screen goes black, a cursor flashes in the upper left corner for about a second, then the boot options screen reappears.
If I boot using my windows 7 cd and go into recovery, get a command prompt and type Bootrec.exe /FixMbr and Bootrec.exe /FixBoot, the options appear to complete successfully, but then when I reboot, I get a permanent flashing cursor.
If I follow that by inserting my parted magic cd and running testdisk and overwriting the mbr, I get back to the first situation where the boot options screen will appear, but the windows boot loader just returns me to the boot options screen. I can get into ubuntu, at least. Whenever I run testdisk I can't replace the boot with the backup boot because I'm pretty sure it's identical to the flawed one.
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Jul 3, 2011
I've been serching the forum for hours and every thread related to "GRUB error: no such partition" that i've read relates to fixing the issue for users with windows OS also installed or trying to get windows to boot.
How it happened: I edited partitions and now I get GRUB error: no such partition. I ONLY have Linux installed.
I was able to boot the OS by typing:
Code:
set partition=(hd0,1)/boot/grub
set root=(hd0,1)
insmod normal
normal
[Code].....
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Oct 17, 2010
I had Windows 7 ultimate installed on my netbook and installed Ubuntu 10.10 using the 'Install alongside other OS's' option which put windows onto another partition and created one for ubuntu.
Anyway I've tried reinstalling the grub but I never get a grub boot menu when I boot it up and the grub won't recognize the windows install
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Sep 12, 2010
I am trying to dual boot Windows and Linux. I would like to continue using the Windows bootloader in my MBR.
I installed Windows 7 first. During the install I left some unallocated space that I intended to install Linux.
I found this guide: [URL]
It says to install GRUB to the bootsector of the partition that Linux is being installed to and not the MBR of your hard drive.
I am trying to install Linux Mint Debian to the second partition. When the installer gets to where you are asked to install GRUB the only option is to install GRUB to /dev/sda which I believe is the MBR.
I decided just not to install GRUB and proceeded with the installation.
How can I install GRUB to the bootsector of my Linux partition?
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Nov 2, 2010
In HDD with 2 partition
sda1 windows xp
sda2 windows 7
1. It is possible to install grub? (Using live cd)
2. If not, if I create sda3 (ext3), and install grub there and boot both windows will be possible?
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May 4, 2010
I recently upgraded to 10.04. The grub menu shows my windows partition but does not load it when I select that OS.
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Dec 23, 2010
I recently have installed Ubuntu 10.10 Maverick Netbook Edition in my personal netbook. The thing is that I had installed Windows 7 in the hard disk drive so I decided to install Ubuntu alongside with it. After the process of installation everything was cool but I hadn't the Grub working. I then pressed the Shift button during the booting process so I got the Grub menu but it didn't show the Windows 7 partition. The Windows installation was not erased because its file system is present in Nautilus. I have tried reinstalling the Grub a thousand times but nothing changes. I have attached the results of the boot info script so you can have some info about my booting configuration.
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Apr 5, 2011
I have two partitions on my HDD. A Windows XP (hd0,2) and an Ubuntu 9.10 (hd0,1).I have been using the Windows mainly and ran a program that changes the HDD's serial number. Now when I boot up and Grub loads, I try to access the Windows partition and get the following error:
Error: No Such Device: 2e3857fb3857c08f
I am still able to boot the Ubuntu partition but can not seem to get grub to point to the Windows partition any more. This is very frustrating as I really need to get back into that partition soon.
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Apr 6, 2011
A few days ago my Laptop wouldn't hibernate in Windows 7, I managed to fix this problem by going into Windows' Disk Management tool and setting the C:/ Partition as the active partition, this fixed my hibernation issue, however I have just noticed that now when I boot my laptop my GRUB menu no longer appears, instead it just loads Windows straight away as if it was the only OS on my laptop.
I've confirmed it's something to do with my recent Disk Management change as I booted up GParted, removed the boot flag from Windows and when a rebooted my GRUB menu reappeared.
Not sure on how I can both have Windows as the active partition while being able to keep GRUB working also.
My Partition Setup is as follows:
/dev/sda1 C:/ Windows 7 (NTFS) (Boot Flag Set)
/dev/sda2 D:/ DATA (Documents and stuff) (NTFS)
Unallocated 1 MB
/dev/sda3 Extended 146.49 GB (LBA Flag Set)
/dev/sda5 Linux Swap 2.01 GB
/dev/sda6 ext4 20.00 GB
/dev/sda7 ext4 124.46 GB
Unallocated 10.00 MB
I'm running openSUSE 11.4
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Mar 17, 2011
Now i've lost possibility to enter my Fedora system. during boot it lost it's modern blue boot screen (with filling drop), it was replaced by standard old boot screen with triple-color stripe. after this boot screen monitor start blinking going on and off. and on last step i'm getting "Fedora 14 boot bla bla bla something" on screen....nothing works except Ctrl+Alt+Delete....system reboots showing successful daemons shutting sequence. How can i edit grub menu from initial grub screen is it possible to it's own 'e' option or 'c' from grub command line?
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May 24, 2010
I have just updated my Ubuntu linux to Ubuntu 10.4, not my grub menu isnt letting me boot to Windows Partition.The problem seems to be with grubs new update from using an editable menu.lst file to using a non editable grub.cfg file. Everywhere I look it states "DO NOT EDIT THE GRUB.CGF FILE". I am at a loss as what to do. I figured that the new configuration has screwed up the Windows Boot File. Anyone have any suggestions on how to fix this. I am not sure if it is a windows issue or an issue with the Grub boot menu.
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Sep 7, 2010
I've installed Lenny with no problem, but I tried switching to Squeeze, and grub for some reason didn't pick up on the Windows partition this time - it just shows the two Linux options (debian and debian single-user). I check the menu.lst file (which I've edited under Lenny with no issues), but for some reason it doesn't exist at all in this install. Is it in a different location with Squeeze maybe?
why grub didn't pick up on my Windows install?
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Sep 20, 2009
I am using Fedora 10, and was wondering if it is possible to install Windows XP on a free partition, without it replacing the GRUB boot loader?
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