Ubuntu Installation :: Grub2 Doesn't See Windows 7 - Doesn't Appear In Boot Menu
Jun 10, 2010
i wiped my entire hard drive that had xp as its only OS. I freshly installed a Windows 7 ultimate and everything went perfectly. I then decided to install 10.4. I split the partitions correctly (i had experience doing this already with my laptop, which has xp/10.4). Ubuntu 10.4 install went flawlessly, except for one thing. Now when i boot up the pc, it goes straight into 10.4. I have tried holding shift during the start up to force the boot menu, and it just shows the Ubuntu 10.4 OS as choices. Any clue what i could do to make Win7 appear in the boot menu?
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Feb 5, 2010
I have Ubuntu 9.10, PuppyLinux431 and Windows XP on a Toshiba laptop. I like Ubuntu, but the speed of PuppyLinux is addictive, so that was my default boot until I upgraded Ubuntu which included an upgrade to Grub2.
My problem: Grub2 doesn't recognise PuppyLinux. Using information from [url] I have made an executable file named 07_Puppy in /etc/grub.d and did update-grub from root. Still no luck. I can boot PuppyLinux from the grub command line using the following commands:
Just before grub displays the boot menu, I think I see a very brief message about a syntax error, but it's gone before I can read it.
Here is the contents of my grub.cfg:
Quote:
Why Grub2 doesn't see Puppy and let me boot it from the menu?
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Apr 26, 2010
I've just installed the 64 bit edition of 9.10 on my workstation. My raid drivers worked without any custom installation, which is very impressive! I am however having a problem installing grub2. I boot to the live CD, run the install process, resize and partition my free space as an ext4 primary partition with mount point /. Everything installs except grub, so I'm always booting in to windows.This seems to be a bit off as I've never had this occur with dual booting before.
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Apr 2, 2010
I recently upgraded to 10.04, all went well. Except now Windows 7 does not load. It shows up on the grub menu, but when selected just hangs with blinking cursor?
[code]...
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Apr 30, 2010
I tend to update stuff slower than most - I'm still using Hardy and I probably won't upgrade to Lucid until June-ish. I wanted to test drive GRUB2 so I upgraded following instructions here:When I chainloaded GRUB2, I got a menu that only contained Ubuntu; my Windows Vista bootloader entry had disappeared. I couldn't find a sample "40_custom" entry to modify when I tried to create an entry for Vista myself. Had no problem booting into Ubuntu and I could still boot Vista from the old menu. Spent about 20 minutes on it, then I gave up and reinstalled legacy GRUB.
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Mar 28, 2011
i've had windows all my life. heard about ubuntu 10.0. thought i tried it out. i tried using some dual installation with windows or something (im running, well WAS running vista, btw) i dont know WHAT i did. i got ubuntu working, but Windows does NOT show up in the boot menu?
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Dec 7, 2010
I'm installing Ubuntu server 10.04 LTS in several machines with identical hardware using clonezilla.Every thing is ok except than wen starting a cloned machine, grub waits the user to make a selection to boot from.The hard disk has 3 partition:
Device Boot Start End Blocks Id System
/dev/sda1 * 1 14 112423+ 83 Linux
/dev/sda2 15 1059 8393962+ 82 Linux swap / Solaris[code].....
how to do to start automaticaly? This is the content of grub configuration file (/boot/grub/grub.cfg)[code]...........
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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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Mar 20, 2010
Ubuntu 9.10 64bit
Grub2 doesn't have menu.lst. If I want to remove on the booting screen, e.g. Code: Ubuntu, linux 2.6.27-2-generic Ubuntu, linux 2.6.27-2-generic (single-user mode) How to do it?
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Apr 13, 2011
I have two hard drives - (1) 80GB (2) 500GB: the 1st HD has 3 partitions (in that order) - Windows 7, Ubuntu 10.10 & Swap. the 2nd HD is for storage only, and has 2 partitions.
I did the following - I installed Windows 7 on the first partition of the 1st HD, it booted just fine. Then I installed Ubuntu 10.10 on the second partition of the 1st HD.
Windows 7 shows in the GRUB menu alongside with Ubuntu. Ubuntu boots just fine, but when I select Windows it simply restarts the computer and the GRUB menu shows again.
RESULTS.txt of 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 on the same drive in partition #3 for (,msdos3)/boot/grub.
[Code]....
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Feb 10, 2010
Trying to get gentoo to play nice with grub2. failing so far. here's what i got in my 40custom file (doens't work):
menuentry "Gentoo-Linux" {
set root (hd0,7)
kernel /boot/kernel-2.6.31-gentoo-r6
initrd=/bin/bb
}
when i run grub-update btw it finds gentoo by itself but doesn't add it to the menu.
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Nov 16, 2010
i come from ubuntu installation and i have had opensuse before and i remember installing any of thede two without any problem on any of many harddisk arrangement. but thge ltest opensuse 11.3 doesnt pllay nice with my windows and ubuntu installation booting. i reember using boot loader in yast and it used to load the coorect setting from scratch. but now when i chose "propose new configuration" and it founds opensuse and three other windows!
[Code]...
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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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Jul 2, 2009
I have a /boot partition, and the online update process has downloaded the upgrade to /boot/upgrade. The problem is that grub is actually booting from a directory /boot which is in the root partition, but is invisible once the machine has booted, because the /boot partition is mounted over it. The result of all this is that the upgrade option does not appear in the boot menu, because that option has been inserted in the menu.lst (or grub.conf) in the /boot partition. is it ok for me to run:grub-install /dev/sda4(that's the device that contains the /boot partition where the upgrade menu option and data). Also, do I need the --root-directory option, given that the boot directory is the root directory of that partition.
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Apr 9, 2011
So, as the title says Windows 7 doesn't show up in GRUB2's selection menu, but it does show my Windows XP professional option that I had before Linux and then reinstalled. After searching very long for the problem in Linux and GRUB2 I decided to boot into XP, witch gave me the option for Windows 7 or older versions of Windows -> so I eventually can boot to it! So here is the real question: How can I make an entry for Windows 7 and for Windows XP? This is because I'd like to use a theme for GRUB and it would be to stupid to make GRUB look nice if I then come to a stupid screen of the Windows loader!
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Sep 1, 2011
I installed windows 7 after I installed linux. I got grub reinstalled but windows doesnt show up in the grup menu. So I run in linux sudo update-grub, but this doesnt find my windows system.
Here's my fdisk -l
Code:
Device Boot Start End Blocks Id System
/dev/sda1 1 8511 68358144 83 Linux
/dev/sda2 8511 8572 487425 5 Extended
[code]....
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Jul 10, 2010
Setup of my server:
5 x 2TB samsung and WD discs.
1 x 1TB for operating system.
Mainboard DG45ID
I installed Debian Squeeze on the 1TB disc, everything goes fine. As soon as I attach the 2TB discs the computer boots and just says GRUB with a cursor. If I detach the 2TB discs everything is fine again?
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Jan 6, 2011
I downloaded Ubuntu 10.10. Initially, I had the problem on the "Who are You" screen and was told that lower case letters were needed. Long story short, I was given a work-around since there was a partition on my hard drive. Ubuntu installed correctly - works just fine. However, upon booting up, if I choose Windows 7, it takes me to Recovery and wants to reinstall factory specs. What's the best way to resolve this? Is going back to factory specs and then reinstalling Ubuntu a viable option? This is brand new computer and I've downloaded nothing - wanted to make sure everything was working fine before I did that - so I would have no problem with doing that.
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May 2, 2010
All this started when I decided to upgrade Ubuntu 9.10 to 10.04. Now Windows XP gives me a blank screen and doesnt run. I have tried a bunch of things but didnt help. I also clean installed Ubuntu 9.10 into a new partition and removed the deleted the other partition.
[Code]....
1. Windows XP on sda1 wont start from grub2 (version 1.97-beta4).
2. I can access the windows partition from Linux and see all the files.
3. When I boot using windows cd, and go to recovery mode it doesnt list Windows XP.
4. From windows Recovery mode when I try "diskpart" it says no partitions in c drive.
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Apr 10, 2011
got myself a new pc, windows 7 installed.. i just got done installing ubuntu10.10. it said to finnish, i had to reboot.. ok, no problem.. i reboot, loading says uuid is not valid.. but, it loads 7 fine.. they are on the same drive, but different partitions. i only got a wireless usb keyboard and when it goes to the shell, it doesnt seen to recognize it.
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Mar 7, 2010
i initilally installed ubuntu 9.10 then installed windows 7 ,then i recovered grub2 using livecd as told in the post [URL] i did "sudo update-grub" and got windows 7 menu entry but when i select that entry windows 7 does not load but the grub2 is reloaded again.
i cant boot to windows 7.
Windows 7 have 100 mb partition "System Reserved" the grub2 points to that partition but still windows 7 not loaded.
sudo fdisk -l
Disk /dev/sda: 320.1 GB, 320072933376 bytes
255 heads, 63 sectors/track, 38913 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes
Disk identifier: 0x3c3a81f5
[Code]....
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May 17, 2010
I went through so many post but I haven't found the proper answer yet hope you have an Idea1. Grub2 saves only Linux OS as last selected no Windows OS2.It is possible to boot into a cdrom (drive)?
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Feb 16, 2011
I have a Windows XP system, and wanted to install Ubuntu to a 100 GB XT3 partition on the same drive. I was told I could chainload Ubuntu from the NT Loader menu. I booted from a Ubuntu 10.04 CD and ran the installer. It didn't find any hard drives. On a hunch, I tried the 10.04 alternate installer CD. That DID find the hard drive and partitions. I had the installer make /dev/sda7 (the XT3 partition) the root. Installation proceeded smoothly, but then the installer told me it did not see any other OS's on my drive! Why? I directed the installer to place grub on /dev/sda7 instead of the MBR.
Per the instructions I was given, I used DD to copy the first 512 bytes of /dev/sda7 to the Windows primary partition (sda1) as bootloader.lnx. But the resulting file is empty, and it won't boot. I repeated the whole process - formatting, installing FOUR times, and same results. I have no idea where GRUB was installed. It is apparently not in the MBR, because I still have my normal Windows boot. I downloaded the 10.10 alternate installer and got the same exact results. Even switched from XT3 to XT4. After two weeks of this nonsense, I still have yet to see Linux boot.
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Feb 6, 2010
I recently installed Ubuntu 9.10 onto my second hard drive, and now I can't boot into Vista (installed on hard drive #1). Grub2 just doesn't seem to be recognizing that there is a Windows Vista installation on the first hard drive.
I followed this guide (with Fabien's changes) because it seemed like they were having the exact same problem. But after rebooting, Vista is still not showing in the GRUB menu. In fact, the GRUB menu doesn't even show up unless I press Shift because it thinks that Ubuntu is the only OS installed on my computer.
My results with boot_info_script:
Code:
============================= Boot Info Summary: ==============================
=> Grub 2 is installed in the MBR of /dev/sda and looks for (UUID=e94a058d-1d19-4a98-924b-1a5fce405bdd)/boot/grub.
=> Windows is installed in the MBR of /dev/sdb sda1:
[Code]....
When I was installing Ubuntu to HD2 (the 500gb one), I got a peculiar message saying that Windows was installed on it. There wasn't anything on HD2 though, because Windows Vista was most definitely installed on HD1.
However, if I chose to overwrite HD1 with Ubuntu, the message wouldn't come up. It seemed like the installer was confused as to which hard drive actually held my Windows Vista install.
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May 1, 2010
I have installed Lucid Lynx more than a dozen times in the past thirty hours and I've almost got it working with RAID. The current problem is with /dev/md0 not existing when grub2 tries to access it. When I boot from the alternate CD in rescue mode, Ubuntu sees /dev/md0 as a software RAID array and I can access the files accordingly. When I boot from the grub2 bootloader, it sits for a while before spitting out "Gave up waiting for root device" and tossing me into the initramfs shell where I can see that /dev/md0 doesn't (yet) exist. What can I change within grub2's configuration to inspire it to start /dev/md0 before trying to mount it?
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Jun 2, 2010
I've already joined the bug report on launchpad. What I want to know here is:How to I reboot directly into the GRUB menu, forced, without having to rely on the buggy sensing of the SHIFT key? I've heard mention of some variables that can be set, but the 137 mostly nested lines of grub.cfg don't exactly encourage me to experiment.
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Aug 5, 2011
I'm attempting to triple boot Windows 7, Mac OS X, and Ubuntu 11.04 on non-Mac hardware. Chameleon is my primary bootloader, which is supposed to chainboot into grub2, but all I get when I choose the Linux boot option is a black screen with blinking cursor. If I try to boot Ubuntu while holding shift, I get the word GRUB, followed by a space and a blinking cursor. grub2 is installed to the Ubuntu partition, and attempts to reinstall it there or to the MBR from a LiveCD result in errors. The MBR and GPT partition tables are synchronized. How do I go about making Ubuntu bootable, without breaking my other two operating systems (or at least leaving them recoverable)?
I built a new desktop computer.The goal was to triple boot the system with Windows 7, Mac OS X Snow Leopard, and Ubuntu 11.04. This endeavor has been significantly more complicated than I originally expected, but with the of a forum-goer at InsanelyMac.com, I've managed to get pretty far with a complex installation process. I've attempted to get Ubuntu running using two methods, neither of them achieving what I'm hoping. Both methods follow.
In the first method, I install Mac OS X using a specially designed install CD that boots into the Snow Leopard installation DVD. The disk is partitioned to have a FAT partition, followed by a Mac OS X journaled partition, ending in a second FAT partition. Mac OS is then installed to the second partition. The Windows boot CD is then used to format the first FAT partition as NTFS, which Windows 7 is then installed to.
As I'm sure you know, this installs Windows Boot Manager. Then I boot into OS X using the boot CD mentioned earlier, and install Chameleon, a bootloader specifically designed for Hackintosh systems, and (supposedly) capable of booting into all three operating systems I'm trying to work with. Finally, I divide and reformat the remaining FAT partition into an ext4 partition and a swap partition, and install Ubuntu to that ext4 partition, with the bootloader installed to the same partition. This will break the Windows bootloader, as now the MBR and GPT tables are no longer syncronized. Ubuntu is also unbootable; attempting to chainload into grub2 leaves me at a black screen with a blinking cursor. The former problem is solved by booting into a LiveCD and installing and running gptsync. Windows is now bootable, but Ubuntu remains in 'limbo'.
The second method I attempted is very similar, but deviates in the last few steps. After installing Windows, I instead install Ubuntu 10.04 LTS, as I thought I might have fewer bootloader issues with that distribution (don't ask why; it was a lucky hunch).This breaks Windows Boot Manager, but this time grub2 throws me into the grub> prompt.I can boot into Ubuntu just fine using the set root/linux/initrd/boot commands, but my motherboard's Ethernet port is not detected by the OS, so I can't directly download and run gptsync. Once I do manage to run it, though, Windows is then also repaired.
Unfortunately, since I can't access the Internet, I can't do a distribution upgrade that way. Trying to upgrade from the recent release's LiveCD...well...doesn't upgrade, just overwrites. So I get the same black screen with blinking cursor problem. I've tried reinstalling grub2 through a LiveCD using grub-install both using the --root-directory flag and the chroot method.
System specifications:
Intel Core i7 (LGA1155)
Corsair VENGEANCE 4x4GB DDR3
[code]...
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May 18, 2011
GRUB2 does not show Windows-XP Pro in the menu anymore.
Probably already posted before; however each case usually is somehow different. I use Ubuntu only occasionally to learn how it works.
After the latest update using Update Manager, quite a few packages were installed without any problem. However GRUB2 does not show the Windows-XP(Prof) partition in the menu anymore. Now I can't boot Windows because I can't select what is not shown.
1. This what I get with command "sudo fdisk -l" (in the present situation)
georges@PC1:~$ sudo fdisk -l
[sudo] password for georges:
Disk /dev/sda: 160.0 GB, 160041885696 bytes
255 heads, 63 sectors/track, 19457 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes
[Code]....
It is already the second time that GRUB2 changes the menu items as it pleases, messing up the bootmenu. How can I repair the bootmenu in order to be able to boot Windows-XP, as before the updates ?
The current Ubuntu version is now 10.4 LTS The current GRUB version is "GNU GRUB version 1.98 Ubuntu10"
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Aug 9, 2010
I want to change my default boot to Vista.I follow https://help.ubuntu.com/community/Gr...hangeDefaultOS
I try
Code:
gksudo gedit /boot/grub/menu.lst
[code]...
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Oct 17, 2010
I just installed Ubuntu on my laptop, which also has Vista installed. HOWEVER... On boot I only get five options: Ubuntu, Ubuntu (Rey), both MemTests and a Windows Recovery.Where's my Vista gone? I left it's partition completely alone during installation, and I can find all the Windows files in Ubuntu, but I can't boot it
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