Ubuntu :: Cant Boot To Win7 From Grub / Win7 Partition Doesn't Appear?
Sep 1, 2011
i have ubuntu 10 and win 7 dual booting on one hdd, all of a sudden grub says error no such partition when i select windows at the boot menu. and i cant get to the win7 partition from ubuntu (to play music and stuff, this used to work, places, mount filesystem, 250 gigs whatever). i've tried the stuff in these links and nothing has worked so farpartition info
sudo fdisk -l /dev/sda
Device Boot Start End Blocks Id System
/dev/sda1 1 29094 233697523+ 7 HPFS/NTFS
/dev/sda2 * 29095 30401 10498477+ 83 Linux
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Dec 31, 2010
Just installed Ubuntu 10.10 onto my new netbook from a USB stick. The laptop came with Win7 Starter, which I kept on a small partition. Installation was apparently successful, but when I start up the computer, it will go straight to Win7 and GRUB doesn't appear.
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Nov 3, 2010
I have Win7 installed in my notebook, after I install WinXP, after I install Ubuntu 10.10
I need WinXP to my project...
I re-install Grub2 with live CD and the WinXP doesn't show up...
So I re-install WinXP... Re-install Grub2 and WinXP doesn't show up again...
So I custumise Grub2 and I put one line for WinXP (doesn't work)
But Now, Win7 line in Grub2 boot WinXP
Code:
Boot Info Script 0.55 dated February 15th, 2010
============================= Boot Info Summary: ==============================
=> Grub 2 is installed in the MBR of /dev/sda and looks on the same drive in partition #6 for (,msdos6)/boot/grub.
[Code].....
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May 2, 2011
I had vista installed, then I installed Win7 on a dif. partition. Then I installed Ubuntu 11.4 over the vista partition (formatted first), and now I can't get into Win7. I'm really at a loss. I've tried the Win7 disk, and it doesn't detect the Win7 installation. I've also tried sudo update-grub, and it doesn't seem to detect the win7 install either. I've tried making the Win7 partition bootable using gpart as well. I'd like to dual boot Win7 and Ubuntu, however I need to do that.
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Apr 23, 2011
i installed ubuntu after windows 7 but now i cant boot windows 7 i tried the start up repair and I've read through some questions answered on here and int figure out the problem i don't want to uninstall ubuntu unless it's my only option
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Feb 2, 2010
I have been using fedora 12 for quite some time. When i first installed Fedora on my new system i created 2 ntfs partitions on the hard disk using mkfs.ntfs and in the space at the end of the disk i have Fedora. recently i tried installing Win7 but it didnt recognise the partitions even tho they are NTFS. I had to format 1st partition from setup to install Win7. After boot i find that Win7 doesn't recognise the 2nd partition as welL. The partitions are working fine in Fedora.
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Oct 16, 2010
I have a major problem with Windows 7's MBR. I deleted Ubuntu's partition last night, and when I restarted, I saw:
Code:
error: no such partition
grub rescue>
I looked it up, put some code into a LiveCD terminal, and I thought it worked. But now, I says that I definitely need to put in a Windows 7 CD and do that MBR fix method. I did not own a Windows 7 CD; my laptop came with it pre-installed, and I have no recovery partition anymore.
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Mar 4, 2011
I have 2 hard disks. sda,sdb
In sda, I have 4 partitions, and I have windows 7 in one of the extended partitions [not in the primary partition].
In sdb, I have 3 partitions. 2 for storage, and 1 10GB drive for Ubuntu. Again, Ubuntu is not of a primary partition.
I had ubuntu 10.04 running on that for a long time. However, I wanted to reinstall ubuntu and use 10.10.This is what I did EXACTLY:Booted from Ubuntu install CD
Chose advanced istall
Selected sdb3 for Ubuntu
I installed GRUB2 on the SAME partition as Ubuntu aka sdb3 Installed then rebooted
I can boot into Ubuntu fine, but whenever I select Windows 7 bootloader from the GRUB menu, the screen goes black, and my PC reboots.
Boot Info:
Code:
Boot Info Script 0.55 dated February 15th, 2010 [code]....
ls: reading directory sda6/: Input/output error
I have tried the testdisk/update-grub method, but it didn't work.
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Apr 20, 2011
The installation went smoothly however, I have installed SuSE11.4 on my 2nd Hard Drive. Now Grub doesn't work and I want to know where and how to install it.
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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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Mar 11, 2010
Today I was messing around with my partitions, and I decided to shrink my main partition that had Windows on it, so that I would could have one big storage partition and then a Windows 7 one and a Ubuntu one. Well, it didn't really work so I decided just to wait for Lucid to come out and start with a fresh install. So I went into EASEUS Partition Manager and resized my main Windows 7 partition back to its normal size. It had to reboot and did its stuff, and then when I restarted my computer, grub was showing the grub rescue> thing. So I went into the Windows 7 recovery disk, and tried all the BootRec.exe options. None of those worked. So I decided to go to the extreme and just delete Ubuntu completely.
I deleted the entire partition with GParted and then resized the main partition all the way. Then I booted into a Ubuntu live usb and re-installed Ubuntu. I thought it would just reinstall Grub and I would be able to get to both Ubuntu and Windows 7. It did install Grub, but now I can only boot into Ubuntu. It's really weird, because I can boot into windows, it just says starting windows and does the loading thing. And then EASEUS Partition Manager comes and says that all resize operations were complete successfully(because I hadn't booted into windows since I resized stuff with it) and then the screen just stays black for a long time. I don't know what to do. If I wait long enough, my computer just reboots...
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May 25, 2011
Recently I had to a complete system install of ubunty 11.04 and win7. I installed unbutu first, then win7. Well when it was all said and done, I figured when I started, I would get the option to either boot in to ubuntu or win7,all I get is win7.Now I downloaded and installed EasyBCD2.0 configured it, but when I boot again I get either win7 or ubuntu. But when I choose ubuntu it doesn't show nothing. So how to I find ubuntu and get it to boot.
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Feb 20, 2010
I set up a dual boot system with Win7 and Ubuntu 9.10. Ubuntu is the first OS listed in the boot menu. I would like to change the boot order so Windows is first. Also after running a few updates I now have multiple boot items listed for Ubuntu that I'm sure are no longer needed. Having never edited Grub and searching through the forum, I'm asking help. I going to guess that I want to edit grub.cfg. If so, what do I need to change within the following information?
[Code]....
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Sep 30, 2010
After install of Ubuntu 10.04 I cant boot WIN7 from the Grub menu.
root@asus:~# fdisk -l
Disk /dev/sda: 32.0 GB, 32017047552 bytes
255 heads, 63 sectors/track, 3892 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: 0xcb5bd2b2
Device Boot Start End Blocks Id System
/dev/sda1 * 1 3890 31245312 7 HPFS/NTFS
/dev/sda2 3890 3892 16154 ef EFI (FAT-12/16/32)
Disk /dev/sdb: 31.9 GB, 31914983424 bytes
255 heads, 63 sectors/track, 3880 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: 0x0002ac5b
Device Boot Start End Blocks Id System
/dev/sdb1 1 3391 27230840+ c W95 FAT32 (LBA)
/dev/sdb2 3391 3881 3931137 5 Extended
/dev/sdb5 3391 3852 3701760 83 Linux
/dev/sdb6 3852 3881 228352 82 Linux swap / Solaris
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Apr 22, 2011
I've resized partitions with some program - perhaps even gparted - but from Win7. partitions are indeed resized, but now I can't boot Win7, grub says:
"No such device found - No such partition found".
I tried to use some advices on similar problems I found here (like adding GRUB_PRELOAD_MODULES="part_msdos" to etc/default/grub and running grub-mkconfig after), but nothing helped. I guess I could restore win7 with installation dvd but I want to fix GRUB (and have both ubuntu 10.10 and win7)
Code:
john@john:~$ sudo fdisk -l
[sudo] password for john:
Disk /dev/sda: 82.0 GB, 81964302336 bytes
255 heads, 63 sectors/track, 9964 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: 0xd576590b
Device Boot Start End Blocks Id System
/dev/sda1 1 789 6336513 f W95 Ext'd (LBA)
Partition 1 does not end on cylinder boundary.
/dev/sda2 * 1476 4008 20346322+ 7 HPFS/NTFS
/dev/sda3 4009 9964 47841570 7 HPFS/NTFS
/dev/sda5 1 749 6008832 83 Linux
/dev/sda6 749 789 326656 82 Linux swap / Solaris
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Jun 2, 2011
I just installed windows 7 and ubuntu stopped booting even though it was still there, so I thought I would just change the partition flag to boot. I found out later that I had to create a new mbr but after I changed the boot flag, windows 7 stopped booting and I tried changing it back, but it didnt work. So I was wondering if i didn't use the correct flags or is there another way to get windows 7 to boot again? I was using GParted to change the partition flags and that i am using windows 7 ultimate 64bit
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Jan 18, 2010
I use CloneZilla to image partitions and Grub 0.97 in the MBR to boot the os restored in /sda1. Although it works fine with XP, I can't get Vista or Windows7 to boot. For instance, Vista fails with error 0xc00000e and is unable to load WINLOAD.EXE. I don't know if it's something in Windows or maybe Grub needs something else besides the following in menu.lst to be able to load Vista and Win7?
Code:
parttype (hd0,0) 0x7
rootnoverify (hd0,0)
makeactive
chainloader +1
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Jan 2, 2011
I am able to get into GRUB and boot Linux, but whenever I select Windows, all I get is an error about a missing boot loader.
After the Windows install disk failed to repair it, I reinstalled the Windows system and then used the Ubuntu live-CD to restore GRUB in order to be able to boot into Linux again. Now I have the same problem as when I started (although the error screen is somewhat different now).
Does anyone know how to break this "evil circle" of mine?
I am using the 10.10 (GRUB 2 in other words).
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Jan 15, 2011
Firstly, I installed my Windows 7 on sda2; then, I installed Ubuntu 10.04 on sda1. But the computer directly get into Ubuntu without listing the grub list. How to get the Grub list back and make sure the Widows 7 is on the list?
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Jul 9, 2011
I wanted to install ubuntu 11.04 alongside win7 on my notebook (with no optical drive). I created 2 primary partitions (one for win7 [ntfs] one for ubuntu [ext4]) and 2 logical partitions (one for swap one for general use for storage[ntfs]) by running ubuntu from my USB Flash disk and using gparted. First, I installed win7 without having any problem, then ubuntu also without having any (apparent) problem (I installed boot loader on MBR: the default setting). After the ubuntu installation is over, I was instructed to restart my computer as usual and win7 started without asking me which OS to boot. When I run ubuntu from my Flash disk and run gparted and selected the boot drive as the partition on which ubuntu was installed, I got the error saying "missing operating system". I suppose GRUB is misconfigured and that is causing the problem because nothing went wrong during the installation processes. How to configure GRUB by running ubuntu from my Flash disk. BTW win7 is working just fine.
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May 11, 2010
I would like to dual boot Ubuntu and Windows 7. I have Ubuntu 9.10 Live CD and Windows 7 Pro Live CD. Ubuntu is installed but Windows 7 isn`t. I have gparted installed. I found the following directions within Ubuntu documentation.
Master Boot Record backup and re-replacement
Back-up the existing MBR, install Windows, replace your backup overwriting the Windows boot code:
Create an NTFS partition for windows (using fdisk, GPartEd or whatever tool you are familiar with)
Backup the MBR e.g. dd if=/dev/sda of=/mbr.bin bs=446 count=1
Install windows
Boot into a LiveCD
Mount your root partition in the LiveCD
Restore the MBR e.g. dd if=/media/sda/mbr.bin of=/dev/sda bs=446 count=1
Restart and Ubuntu will boot
Setup grub to boot windows
I don't want to backup the MBR and restore as listed. I would rather use the Ubuntu Live CD to reinstall the GRUB.
How do I overwrite the MBR?
Do I use gparted and change the partition?
Do I create an NTFS partition as listed above?
Or what do I need to otherwise do to boot the Windows 7 Live CD so that it will install?
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Aug 8, 2010
Regarding the installation of ubuntu 10.0.4 on my HP pavilion DV5000 laptop.
I previously installed windows 7 in my laptop and i would like to have ubuntu and windows 7 in dual boot. in order to do that i need to free up some space to be able to install to create partitions for ubuntu and the swap even if I have 30GB of unused space.
When i launch the live cD and i reach the step 4 ubuntu is actually recognising three operating systems installed:
- windows 7 (loader) under dev/sda1 (92,86GB) NTFS
- windows NT/2000/XP (which is corresponding to my "HP recovery" partition) under dev/sda2 en FAT32 (6,2GB)
- windows XP embedded (I don't unerstand what it is) under dev/sda3 NTFS (1,1GB)
when I go to the step 6 to modify the size of sda1 to free up some space, i don't have the possibility to change it, i can read "unknown" under the used space collumn.
I also tried to resize this partition using gparted but unfortunately i had the same problem, when i select it all the options to modify it are greyed out and i can notice a key near the hard drive logo (is it locked ?).
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Feb 14, 2010
I turn back to openSUSE and install it in my machine (win7 installed first),but i can't boot from win7. openSUSE doesn't boot from win7 (like ubuntu) and i can't see ntfs win7 partition from openSUSE. Why openSUSE is so complicated about dual booting
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Mar 4, 2010
I'm a F11 user and I wanted to see the new Windows 7 and right now, the computer doesn't boot via grub.
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Sep 13, 2010
I'm having serious troubles to install ubuntu-10.04.1. My raid is an hardware raid with intel chipset. Note that win7 is already installed and working with my raid. I made some space from windows, to install Ubuntu (40gb). First, I run the installer, everything seems to be fine. I choose to install Ubuntu were there is the most space free (sorry, I'm not sure about the real terms used there).
Then my partition with the vista loader appears. So the installer can see my raid, and should work fine (everything is detected correctly). But once I'm in the end of the installation (around 95%), a pop-up appears, and tells me that Grub can't install in /dev/sda and it's a fatal error. I can choose an another destination, but it doesn't seems to work.
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Apr 1, 2011
I am trying to Dual-boot Windows & and OpenSUSE 11.4, and have run into walls all over the place. Here is what I did:
1. Windows 7 was already installed. (Don't like it, freezes all the time)
2. Installed OpenSUSE using default partition options.
3. Booted into OpenSUSE with no problem
4. Tried booting into Windows, no joy.
5. Got that figured out, now I can get into Windows.
6. GRUB is gone, so now I can't get back into OpenSUSE.
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Aug 12, 2011
I have been an MCSA for the last 20 years, but recently I have been very impressed indeed with Ubuntu 11.04, having dabbled with and then discarded Susi Linux some five years ago. My problem may be summarised as outlined below: Using the downloadable ISO I installed Ubuntu 11.04 as a dual boot on a Win7 100GB HDD on my Lenovo T61 laptop. No problem they both rock and I'm very impressed. During the installation procedure I selected the largest partition sizes available from the Ubuntu installer wizard being 25GB Extended split into 18GB Ext4, and 3.2GB and 3.2 GB swaps (I couldn't suss out any way of manually increasing them any further).
I found that the 11.04 Startup Manager application didn't work at all, so I downloaded and installed Grub Customizer 2.1..and that did work after a fashion.. certainly enough to actually effect changes in the grub configuration settings. Everything worked so well on the 100GB HDD that I decided to transpose the entire disk image to a new 500GB WD Scorpio and make the dual boot my main working disk. Using Acronis I imaged off the 100GB installation selecting the partition by partition, and retain disk signature options. I then recovered the image to the new 500GB HDD and everything works beautifully on the new HDD.
Except of course all the partitions are still the same size. I won't waste your reading time recounting everything that I have done using Acronis Disk Director (V Good) and Gparted (not so good), but needless to say whatever I do Grub won't have it, and I have lost count of the times that I have re-recovered the good image. Basically I want to increase the partion sizes to apportion larger partitions to both Win 7 and 11.04 and obviously I'm missing something somewhere.
Fdisk -l -u produces..
Disk /dev/sda: 500.1 GB, 500107862016 bytes
255 heads, 63 sectors/track, 60801 cylinders, total 976773168 sectors
Units = sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disk identifier: 0x9f011ed1 .....
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Jul 11, 2011
I know it is possible to move the ubuntu home directory but what is the best way to move it safely to an NTFS partition that already has valuable data in?
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Jul 5, 2011
I just installed Fedora15 on my laptop. When the installation completed, the system rebooted and gave me a Grub Error 17. I logged in the rescue mode and got the following output from
Code:
fdisk -ls
Code:
Disk /dev/sda: 250.1 GB, 250059350016 bytes
255 heads, 63 sectors/track, 30401 cylinders, total 488397168 sectors
Units = sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disk identifier: 0x0d8b0d8a .....
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Aug 13, 2010
I recently upgraded to Ubuntu 10.04 from earlier versions. I have a dual boot system with Windows 7. Grub was set to boot Windows by default Things were working fine. I decided to upgrade to Grub2. It seemed like a good idea at the time. Now when booting up,the name at the top of the Grub menu is 1.98, which is Grub 2. When I run grub-install -v, it comes back grub-install (GNU GRUB 0.97) which is not Grub2. Now when I boot up, Ubuntu 10.04 is the default. I have to manually choose Windows if I want to use that system. I have been unable to change the boot order following instructions from this site. Any Way changing the boot order to make Windows 7 the default. I am using a Toshiba Satellite.
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