Ubuntu :: Cannot Boot Windows From GRUB Menu
Jun 6, 2010
I upgraded to Ubuntu 10.04 recently and now have MBR problem. When selecting Windows XP from the GRUB menu the screen defaults to terminal mode with grub rescue> displayed. I admit I know little to nothing about Ubuntu, unix, etc other than I like what I have seen so far and am trying to learn more. I need to (unfortunately) use Windows and have data on it that I can't afford to lose. How can I repair the problem so I can boot Windows from the menu? Thank you
P.S. I was dual booting successfully earlier. I had the previous version of Ubuntu running with Win XP and everything was fine. The problem started when I upgraded to Ubuntu 10.04. I have tried reinstalling 10.04 with no success. If I am unable to get dual boot working my wish would be to save my Win data and then I can wipe clean and reinstall Win and Linux.
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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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May 2, 2011
I installed 11.04 after Windows 7. when the GRUB boot menu starts up there is an option for Win 7 boot but it will not boot windows. When that option is selected the screen changes colour for 2 seconds and then reverts to the GRUB menu. Ubuntu boots fine.I downloaded the Boot Info Script and ran it, the results are
Code:
Boot Info Script 0.55 dated February 15th, 2010
============================= Boot Info Summary: ==============================[code].....
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Jan 9, 2010
I have a Compaq Presario CQ60 with Nvidia GeForce 8200M graphics card. When I first installed Windows 7 followed by Karmic in dual boot I could boot into both OS. Now when I try to boot into Windows, it displays the Windows logo and then drops back to the grub menu. It may have started happening after Windows 7 installed updates. I tried reinstalling both Windows and Karmic again and it again worked initially but now Windows no longer boots. Does anyone have any suggestions about what may be causing this or how I can fix the problem without reinstalling?
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Mar 5, 2011
how to be able to add windows 7 to my grub menu or to even be able to boot to windows 7. I am currently unable to do it and my system just automatically goes straight to ubuntu. I've tried holding down SHIFT during startup and all that appears in my list is ubuntu entries and a memtest entry. My windows 7 files are still intact because I can see the drive through ubuntu and see all my files. I am trying to have Windows 7 on one hard disk that is 640GB and ubuntu on a second hard disk that is 160GB
[Code]...
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Jul 3, 2011
i am having a problem with my dual boot setup. I originally installed windows XP on a 100gb hard drive, from there i downloaded and burnt ubuntu off so i could install it on my 200gb hard drive. For a little bit i struggled to even get it to install because it wouldn't recognize my onboard nvidia graphics, i ended up having to get an alt boot disk and fix it with technique in this link:
[URL]
Now after the bios boot, my screen shuts off for awhile and takes me directly to the login screen for ubuntu. No Grub, no windows boot options, nothing. I tried booting windows by choosing it from the bios boot menu but all it does is hang at prompt and doesn't boot at all. I tried the live cd fix and reinstalled grub but nothing changed. What i think is happening is that it boots the Grub menu but it doesn't display it because of graphical confrontations. It hangs for about 10 seconds, the grub default time, and then turns my monitor back on to display the Ubuntu login screen.
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May 3, 2010
It would be nice to get a sticky thread up for dual boot installation issues. It seems like this is a very common problem with the upgrade from 9.10 to 10.04.
I was finally able to solve my issue dual booting 10.04 and Windows XP Home at this thread.
[URL]
I had to reinstall Grub2 and run update-grub.
Then I had to run Rescue on my XP disk. Once to the DOS command line I ran the following command:
C:Windows>fixboot c:
I rebooted and now all is well. I can boot to Ubuntu 10.04 or Windows XP from my Grub menu.
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Jul 17, 2010
Since upgrading to Lucid (I think), I can't boot into Windows. When I select the Windows Vista entry in GRUB, the screen goes blank for a moment before returning me to the GRUB menu.I have tried pressing 'e' to edit the GRUB entry before booting, and what I find is that it says the root is hd0,1Since my Windows partition is sda1 in GPartEd, should that translate to, for example hd0,0 ?The only reason I want to boot into Windows in the first place is to install a BIOS upgrade from HP, which only works with their Windows software. If someone can suggest an alternative way of doing this then I won't need to boot into Windows at all.
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Sep 11, 2009
I hav two 40 GB hard disks.RHEL5 is installed on 1st and Windows on 2nd. In order to use each OS I manually hav to go and change the "first boot device" option in BIOS setting and boot into required OS. GRUB doesn't show Windows in its boot menu.How can I make GRUB recognize Windows and boot into both OS using GRUB boot menu?
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Jan 10, 2010
I installed Ubuntu as a dual-boot system with Windows XP very carefully. Unfortunately, though given the option to boot Windows at the grub menu, when I select it, I get an error. Booting Ubuntu on my other partition works just fine, no issues.
I also attempted to access files from the first partition in Ubuntu using gparted, but once I mounted it, all of my files were not present. I only saw manufacturer files, and many files and folders I didn't recognize.
Also, as an aside, my laptop monitor is suffering from occasional black-outs during use. Ubuntu gave me a little toolbar flag, telling me to go to a website and use the patches given to fix it, but I'm not quite so sure where to input the given patch text. Do I really need to go through the trouble of finding the source code, etc., or is it more simple?
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Jul 15, 2010
I just got a Zino HD from Dell, and was planning to use it connected to my TV, dual booting Xubuntu 10.04 and Windows 7. I did, however, run into some issues. I suspect I'm just going to have to burn a restore disc and start over, but I'd like to fix this if possible. Here's what I had to start with:
1 vfat partition (bootup?)
1 dell restore partition
1 Windows partition
Because the restore partition was a bloody 20 GB, and I could always get the restore done via disc, I reformatted it as ext4 and used it as "/". I then shrunk the Windows partition and allocated a home partition and some swap space. Note that immediately after the installer, I reformatted the home partition manually with an inode size of 128 to use with the Windows ext2 driver, but that shouldn't have really changed anything. End result file system order:
1 vfat
1 ext4 mounted as "/"
1 Windows
1 Swap
1 ext3 mounted as "/home"
I now have two problems:
1) I do not get any GRUB menu at all! It just boots directly into Xubuntu with no choices (not even memory test or restore mode).
2) I, obviously, can no longer boot Windows.
Keep in mind that this a fresh install on a brand new machine; I can't think of any reason GRUB wouldn't even show me a menu.
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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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Feb 4, 2010
i have just discoverd i can't enter my windows 7 via grub boot menu i get error 13 Invalid or unsupported executable format what can i do? # This entry automatically added by the Debian installer for a non-linux OS
# on /dev/sdb1
[Code]...
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Nov 29, 2010
i am trying to change the boot order on the GRUB menu so that the countdown automatically starts on an older kernel. From what i can see all the solutions on the web want me to edit the /boot/grub/menu.lst file. The problem is that i don't have one. Someone also mentioned that if i don't have a menu.lst file then i should look for the grub.conf file. I don't have on of those either. The closest thing in /boot/grub is grub.cfg but that looks nothing like the descriptions i have heard of /boot/grub/menu.lst file
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Sep 19, 2010
3 partitions (in order): Windows 7, CentOS and shared data partition.
I need to increase the size of the Windows 7 partition (c:windowswinsxs seems to be something not easily remedied).
GParted didn't work in moving things around (bad sector) so I wiped out its partition (# 2 out of 3) and I was able to increase the size of the Windows 7 partition (I can reinstall CentOS easily and not much work lost).
Except ... no more grub menu (unsurprising). This incantation does allow me to boot into Windows 7.
Is there any way of rebuilding the grub menu short of reinstalling CentOS (5.5)?
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Apr 27, 2010
I have a used PC that came pre-installed with suse 11.2.Unfortunately, I do not have the install disk to use in case of whatever.I already know that when configuring a dual boot with Windows and Linux, it is recommended to install Windows first.I do not have that luxury now as 11.2 is installed and GRUB is the boot loader.Question is, if I boot the Windows 98 install disk on boot, how to not mess up GRUB and still add Windows 98 to GRUB menu?
One hard drive only here. 98gb free.It seems that W98 install will overwrite GRUB in this situation - causing problems. Maybe not, I don't really know for sure.I just need to install windows 98 on the same hard drive and if possible, have suse and w98 visible on boot in GRUB.
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Dec 22, 2010
The first is I seem to have 3 GRUB installs. So whilst I update the one from my live session, the change does not appear in the boot up menu. I had installed 10.10 from a CD into a different partition (sda6), but that will not boot, so I have just deleted this and done another grub install and update. The kernel I am using has just been updated from 10.04 to 10.10 too, and it is this that I use and the Grub I have been working on (sda5).
[Code]...
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Jun 5, 2009
I've got myself the curious situation where, when I boot the system, I can get grub to start, but it always drops to the prompt.
I can run:configfile /grub/menu.lst
and this brings up the menu with no problems, and from there I can boot the system to either linux or windows. What I don't understand is why it wont go to the menu in the first place?As far as I can tell, grub/Kubuntu got confused when installing, as each of the hd#,# settings in the menu.lst have needed tweaking to let the system boot. (e.g. windows is actually hd0, but the original install had it at hd2. Likewise linux is on hd1, but the menu.lst had it at hd0). I've happily tweaked these to make the system boot, but would appreciate any help in convincing grub to actually load the menu without me having to use the prompt.
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Apr 17, 2010
I started another thread about this to get help booting into openSUSE after Fedora rewrote my bootloader and deleted all other entries. I managed to fix it but I never did find out why the following commands caused my system to boot to the grub shell instead of the grub menu.
Code:
grub
root (hd0,3)
setup (hd0)
quit
reboot
Can anyone explain to me why these commands caused my system to boot directly to a grub shell? It's as if there were no /boot/grub/menu.lst files for it to use, but after I got everything back to normal, the files were still there.
If it helps, this is how the drive was setup before and now, except Fedora was on /dev/sda4 and has since been deleted.
Code:
Device Boot Start End Blocks Id System
/dev/sda1 1 262 2104483+ 82 Linux swap / Solaris
/dev/sda2 263 13316 104856255 83 Linux
/dev/sda3 * 13317 14621 10482412+ 83 Linux
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Apr 18, 2010
I am trying to streamline my boot screen/GRUB Menu. I know what I want it to look like (grub_wanted.jpg), and I think I know how to get it by uninstalling a couple of things, (synaptic.jpg). Now I have too many items on the screen, and it looks cluttered to me (grub.jpg).
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Jan 28, 2011
I've installed Ubuntu on my new desktop alongside Windows 7 (each OS is on a separate drive), I seem to have run into a small problem. Let me start with what I did:
- Unplugged 1TB drive from the PSU, BIOS was not seeing my formatted (and thus empty) 500GB drive and I couldn't put it into the boot order at all with the 1TB turned on.
- Loaded up the boot CD and was able to install Ubuntu 10.1 on my 500GB drive.
- Did a bit of configuring, shut my PC off and plugged my 1TB (with Windows 7) drive back in. I tried to see if I could now see my Ubuntu drive in BIOS but nothing is there - just the Windows drive is in the list of available drives to boot from (along with DVD-ROM and USB).
This is where I've run into my problem. What I want is to have a nice GRUB boot menu at the start like any other dual-boot system but just have the two operating systems on separate drives altogether.I did it this way because I was having issues with the advanced partition menu on the boot CD so just went ahead and followed the KISS method by unplugging the Windows drive.
I was told by a friend that if I put my Ubuntu drive into the first position in my boot order and the Windows drive in the second, then I could boot into Ubuntu and run a GRUB update command (he told me to google it) and that would create the necessary GRUB that had the entries for Windows 7 and Ubuntu.Both operating systems are 64-bit, I imagine that might make a difference in whatever help you guys can offer me. I love the hell out of both OS's and want to be able to use them interchangeably.
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Dec 16, 2010
I followed a tutorial to install XP across my entire HDD. I installed Ubuntu 10.10 "Alongside another OS". Ubuntu loads fine, but when trying to load XP, the boot screen shows up, but then the computer restarts and returns to the GRUB menu.
I saw some threads on this site and tried to type: sudo gedit /boot/grub/menu.lst
In the terminal. It returned a blank text document so I'm not sure if that information was outdated. I then typed: sudo fdisk -l
And got this:
Not sure what any of this means, but I sure hope someone else does. I would say forget XP, but it's hard to let go of some of the games and software I use. I appreciate any responses, thank you.
I tried to format the table as it appeared, but the forum corrected the extra spaces.
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Apr 3, 2010
I'm a noob but enjoying dual booting. However, every time I run update manager I get a new vmlinuz entry and now I have multiple boot options in my grub boot menu. Now when I have like 5 ubuntu entries to move past to select Windows. and the latest Ubuntu is always at the bottom so I have to annoyingly scroll down to select the latest there. I don't really understand what the vmlinuzXXX entries in the boot folder are for so I don't want to delete them. I've thought about editing the loop in the 10_linux file in the grub.d folder but it looks like its calling a function or macro or something:
Code:
linux='version_find_latest $list'
But like I said, I'm a noob to all this (a .Net developer on Windows professionally) and don't understand where this is. It looks like this function call has the logic I need to fix. Because its not finding the latest, its just finding all. How to I get back to one Ubunutu boot option like when I first installed?
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Aug 19, 2010
At the moment my GRUB 2 boot menu has all the Linux kernels, then memtests, then Windows. I want it to have Windows, then Linux, then memtests. I'm thinking I can do this by renaming /etc/grub.d/10_linux, 20_memtest86+ and 30_os-prober to 20_linux, 30_memtest86+ and 10_os-prober respectively.
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Nov 15, 2010
i have a windows xp OS installed on C and on D ubuntu 64bit ! and i disabled from windows to see the booting manager where it shows me weather to choose Windows or ubuntu ! and the GURB menu , when it comes up i cant see windows !
Note: i tried the sudo update-gurb this or wtever command was it ! but also failed to show windows
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Dec 17, 2010
I had Windows XP installed, then installed Ubuntu 9.10 in a different partition. I was able to choose which OS to boot. Then I did a distro update to 10.04. Now Windows is missing from the GRUB boot menu.
sudo update-grub doesn't change anything so I think sudo os-prober isn't finding Windows.
I've edited grub.cfg and can get an entry added for Windows, but it doesn't actually load Windows. It just reboots the machine. If I run sudo update-grub after adding a menuentry for Windows to grub.cfg, the menuentry I added disappears.
I've run testdisk, but BackupBS isn't an option. It says the original and backup boot sector are identical.
cfdisk says sda1 is the only partition that is NTFS and it is set to Boot.
I've already installed all available updates from lucid-security and lucid-updates.
I've run bootinfoscript and here are the results:
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 #5 for /boot/grub.
=> Windows is installed in the MBR of /dev/sdb
[Code].....
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Jun 15, 2011
I just installed ubuntu on a remote windows server, using wubi. How can I launch ubuntu? Restarting the remote machine obviously disconnects my session. Is there some way to access the grub menu from windows?
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Jun 21, 2010
i have a dual boot. i loaded 9.1 on one disk and windows xp is on another. grub worked fine. i downloaded 10.4 and i must have selected the wrong option cause when i restarted it dropped me into a shell. i reloaded 9.1 and wiped out 10.4. again i must have selected the wrong option cause i get the grub menu with an option for windows but nothing happens. 9.1 comes up alright and i can select windows office files from ubuntu.
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Aug 25, 2010
I installed Ubuntu as a dual boot to play with a while ago, but I really don't have time to be testing it right now, so I'm wanting to set the GRUB menu to automatically pick Windows 7 instead of me having to hang around waiting for the menu to pop up and hitting the right buttons when I'm barely conscious.
Someone linked me here: [URL] and I found the menu.lst file, but when I opened it to edit the default, it was blank ... is the file elsewhere now or something? Do I not have access rights to the file? What's going on, what do I do?
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Oct 21, 2010
I installed Ubuntu onto a separate partition I have. Now however when i boot up, Grub (v1.98 ) gives m 5 options.
Ubuntu, with Linux 2.6.35-22-generic
Ubuntu, with Linux 2.6.35-22-generic (recovery)
Memory Test (memtest86+)
Memory Test (memtest86+, serial console)
Windows Recovery Environment (loader)
With no Vista option.
When I run the recovery environment however, it runs just my regular vista boot would have. Is this just a name issue? Ideally I would like to have my Vista option back.
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