Ubuntu Installation :: Win7 Does Not Boot After Installing Grub
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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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 27, 2011
how do i correct my boot loader after installing Win7 on the free space available. i still have my fedora 13 partition intact. but of course, fedora option is not available. how do i re-install grub using the rescue dvd? tried alrerady.
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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 25, 2010
I had win 7 installed, decided to install ubuntu on this desktop computer. I had a windows partition, and a few other partitions, one with a wubi install of windows that I never used, so I decided to delete it, while installing ubuntu 10.10. I had free unallocated space for installing ubuntu, which was contiguous to the partition of the wubi install of ubuntu, so I decided to merge them, I did all this in gparted while installing ubuntu 10.10, 2gb swap, then 15gb root and all that remained to home.
Everything worked out fine (of course I never touched the win7 partition). After reboot grub doesn't show win 7, so I thought I'll just add it to grub, followed a few tutorials on this forum, but nothing worked. Then I remembered that the partition which I deleted to merge with the ubuntu partition, was an Active partition, and soon found out that my win7 partition was not active! (this is probably because I installed win 7 while I had still win vista, so that active partition was where vista was).
So now a ~100mb apparently unallocated partition was the active partition (win 7 hidden boot partition?), and trying the Startup repair of win 7 cd doesn't work, tried bootrec /fixboot, successfully, but bootrec /rebuildbcd can't find any Windows installation, even after setting the win7 partition as active with DiskPart. This is almost entirely a windows problem, but I just wanted to have Ubuntu working alongside Windows (I use a lot adobe's sw, which runs sadly only on windows, otherwise I would use only ubuntu).
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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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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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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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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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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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May 5, 2011
I have Windows 7 on my laptop and am attempting to install Ubuntu 11.04 from CD.I boot from the disk drive, follow the prompts and eventually get to the screen where I can set how much space I want to give to the Ubuntu partition vs the Windows partition. My hard disk is 250GB, so I reduce the Windows one to 100GB (currently has 80GB of files on it) and set the Ubuntu one to 130GB (the other 20GB is split between the two hidden Windows 7 partitions).
I then click to continue and the progress bar for the install starts up but doesn't move, it just sits at 0%. I realised that the dialogue box underneath the progress bar can still be expanded and asks me to test using -n and -s, but when I type either of these into the box and hit return, nothing happens. I have checked my download of the .iso I used using WinMD5Sum and the hash matches up. I have already tried installing from USB but this threw an error, hence using CD. My laptop is a Dell Inspiron 1546 running Win 7 Home Premium 64 bit Processor: AMD Turion X2 Dual-Core Mobile RM-75 2.20GHz
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Aug 27, 2010
Partition info:
sda2: Win7
sdb1: /boot
sdb2: LVM, containing , home, swap...
[code]....
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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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Apr 27, 2009
I will be booting Vista, XP, and then installing Linux with grub. So the Vista boot loader will be setup to boot both Windows, so then when I do install a Linux on the same hard drive, (all on separate partitions) what is the best method to boot up all 3 systems?Should I just allow grub to install on the master boot record, and then chainload XP and Vista. Or I could install grub on the boot sector of what will be my Kubuntu root partition, and then try to add this Linux to the Vista boot loader ?
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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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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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Oct 21, 2010
My dell machine has the following: A raid 0 SAS config with Windows 7 installed in one partition, and ubuntu in the other partition. Then two seperate sata hdd. The raid drive is set as first boot, and Windows views it as disk 0 and boots just fine. When I installed ubuntu 10.04 on the second partition, it viewed the disk as sdc. And when booting off the raid drive,im not given a grub menu to choose ubuntu orwin 7,windows 7 boots all on its own.
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Jun 16, 2011
I have a desktop Windows PC with three hard drives. Having successfully installed Ubuntu on a laptop I used the same CD image to boot Ubuntu on my desktop machine. All seemed well so I selected the option to install alongside the existing OS. I left the choice of drive as presented by the installer (it was the largest one) and asked for an 80G partition for Ubuntu. The installation went well but when the machine was restarted it just booted straight into Windows. No sign of the bootloader menu. I'm guessing the BIOS doesn't look at the drive where Ubuntu is installed, and the installer did not put the bootloader on the Windows boot drive. The Windows drive is too small to install Ubuntu there.How do I fix this so that I can dual boot, or alternatively how do I get rid of Ubuntu and reclaim the 80G for Windows?
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Feb 5, 2010
I am using Mac Pro with MacOS + Vista 32bit +Ubuntu installed. Using rEFIT with lilo bootloader. I want remove Vista 32bit and install 64bit Windows 7 instead. I am afraid of trying to install Win7, because it may delete bootloader. How can I remove Vista and do a clean install of Win7 to my Mac Pro without losing ubuntu and MacOs?
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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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Apr 1, 2010
I installed a new graphics card (Nvidia GeForce GT240 1 Gb, 128bit DDR3) on my gigabyte VA900M motherboard, with my computer running a dual boot of windows 7 (64 bit) and ubuntu 9.10 (64 bit). The computer would not boot past the memory test stage. To solve this, i flashed the BIOS with the latest upgrade for the motherboard from the Gigabyte website. This still did not work, so, doing the usual "testing hardware combinations by unplugging and replugging", I removed 1 Gb of RAM, which solved the problem of booting past memory test (a case of too much memory?)
Problem: The problem now is, GRUB wont boot from the HD, unless I have the Windows 7 disk (or Ubuntu Live) in the DVD drive. If i dont press a key to boot from the disk, Grub will then load. how to make GRUB boot from the HD? Do I need to redirect/reinstall GRUB? Im pretty sure it is not a BIOS problem.
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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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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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May 29, 2010
I'm a pretty experienced Windows user, and have coded in x86 and win32 API for a while, so I know the system reasonably well. I've used windows since the days of Win95, and prior to that I had an Amiga - so I'm pretty rusty in unix-like operating systems. I have little C coding knowledge beyond reading it, though I can understand what the programmer is doing from reading the source. My only experience with installing linux was on a 486 laptop that failed spectacularly when the CDROM couldn't be detected and used, so I'm necessarily a little wary of doing this, but I've become quite exasperated with Windows lately.
I have decided to make my life interesting (if not easier at first) by dual-booting Linux with Win7. My current machine is a dual-core intel laptop with 2GB of RAM and an ATI X1250 mobile GPU, with a 120GB HDD. I have two partitions currently on this machine - both 60GB-ish. The main C: drive is Win7. I'm aware of the hidden partition that Windows installs. I have an external 1TB USB drive for my applications and data, so space shouldn't be a problem. There is no floppy drive (unsurprisingly) and I can boot from the internal DVD drive.
I have chosen the Slackware 13 distro because it seems to be well respected as a learning tool for unix-like operating systems. My main aim here is not to abandon Windows at first, but to learn a new OS. I'm aware that Slack may not be the most user-friendly distro, but will give me knowledge that I might not gain under other distros. If I'm making a mistake here, then let me know! I have plenty of free time to devote to this little project, and I'm not afraid to learn. I am however afraid to destroy my Win7 fall-back. If all else fails, I need to be able to go back to a working OS to jump on the net to find the answer to what went wrong.
So my question, as per the subject title, is: What do I need to know before I do this? I have no idea what I'm doing with regard disk partitioning beyond Partition Magic - which I don't actually possess anymore. I can use the Windows disk management app. I have no idea how to manage a boot sector. So are there any gotchas that I need to bear in mind? I've already read this thread: [URL]. Which I must admit looks very complicated! I have a fair bit of time before my Slackware 13 DVD-ISO image downloads (20KB/Sec) so have some time to gather information.
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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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Jun 21, 2011
the only issue that i have: the wireless is always disabled.
when i install new updates, the wireless comes back enabled and everything is fine but when i restart ubuntu its disabled again !!
i have a DELL studio 1537 laptop (broadcomm wifi card)with a win7 service pack 1/linux ubuntu 10.04 LTS dual boot.
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Mar 26, 2010
Looks like Grub2 on my new installation of Ubuntu 9.10 is not picking up a Windows 7 installation on a RAID0 array (using the built-in RAID software from my Asus P5Q-Deluxe)
Here are the results of the boot info script:
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 for
(UUID=43b4cb20-dfea-4513-80e9-54d066107c71)/boot/grub.
=> No boot loader is installed in the MBR of /dev/sdb
[Code].....
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