Ubuntu Installation :: GRUB 2.0 Eats Win7 Line After Compilation
Mar 26, 2010
My ubuntu 32-bit 9.10 compiles kernel a few times, and now I realized my Win7 lines disappeared. First time when I made the dual boot system, I remember there is a line for Win7, and able to boot up Win7. And then I ran compilations 2 ~ 3 times, and now I see the lines gone. I know 'editing GRUB' is risky, and want to hear advice how to fix. - Actually I don't think I can edit grub.cfg file manually. In my Ubuntu Desktop menu, I still see and mount the Windows disk (physically different partition)
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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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Mar 19, 2011
I'm working on a simple data processing script.My script uses a loop with getline to check for the value on the next line to decide if it's time to terminate the loop.This works dandy, but the problem is that getline eats that line, which then isn't processed by the rules in the remainder of the script (even though I want it to be). To illustrate what I mean, consider this simple gawk script:
Code:
{
print $0
[code]...
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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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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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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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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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Aug 28, 2010
I had XP Home on my dual boot Ubuntu 10.04 LTS amd64 PC & now installed Window 7 Home Premium 64-bit over old XP. Before installing Win7, as a precaution, I disconnected the hard drive where Ubuntu is installed. Now, naturally, the startup screen (grub?) still offers XP. Is there an easy way to re-detect & rewrite the startup menu with the Ubuntu install CD without re-installing Ubuntu 10.04 LTS amd64 again, like a GRUB repair or rewrite?
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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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Aug 21, 2011
I just finished my Windows 7 reinstall, and I go to reboot into Linux, and there's not grub loader. I go into a live CD and get into the grub prompt. Here's what I got:
sudo grub
grub> root (hd0,0)
grub> setup (hd0)
Error 17: Cannot mound selected partition
As for additional information, my fstab is listed below:
aufs / aufs rw 0 0
tmpfs /tmp tmpfs nosuid,nodev 0 0
/dev/sda6 swap swap defaults 0 0
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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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Feb 6, 2010
My machine is an hp 2133 mininote. It came factory installed with Windows vista, which repeadtedly crashed on me. To compenstate for this i installed gOS to dual boot with Vista. This was working fine but I was recently given a Windows 7 install disk, so I decided to upgrade. Windows seven installed without a problem but now I can't access the GRUB bootloader, windows 7 just loads automatically. I tried to restore it using the Super GRUB Disk usb utility but it didn't work, windows 7 still boots regardless.
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Mar 25, 2010
Just update ubuntu to beta 1. When I try to load win7 it just all a get is the blinking underscore in the top left corner. What did i do wrong?
[Code]...
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Jan 6, 2011
early tl;dr: The fancy grub breaks on my wubi 10.04 install, can I force it to use the old grub?
When I rebuild grub.cfg (last time was yesterday for kernel update to .37), and shut down / reboot, grub breaks because it can't 'loadfont' and a few other errors which are related to the 'graphical' grub boot menu.
To fix this I have to boot into a live CD (also Ubuntu 10.04) and run the following:
Taken from [URL]
Code:
sudo fdisk -l
sudo mkdir /win
sudo mount /dev/sda1 /win
sudo mkdir /vdisk
sudo mount -o loop /win/ubuntu/disks/root.disk /vdisk
[Code]....
I know how to fix it but is there a way to skip having to do this on upgrades
(If I edit the grub.cfg before shutting down then this doesn't happen, obviously, but sometimes I forget and this is the result. I'd rather stop the problem at it's source than fight against the updater).
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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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Jun 8, 2010
Im a newbie having the opposite issue that seems that everyone is having for what Ive seen, I have Grub on the MBR, showing the splash screen fine (the background image also), and allowing me to boot Windows 7, but I get a cursor blinking for the eternity when trying to boot Fedora 13.My hardware is:
Quote:
-ASUS M4A89GTD PRO (AMD 890 FX AM3 Chipset).
-Phenom 965 BE.
-4Gb RAM.
-3 x 250 Gb SATA Hard disks, first one alone for OS, and the other two in fake RAID1.
-1 x 80 Gb IDE hard drive containing trash.
-RADEON HD 4870 1Gb Graphic Card.
-RME HDSP 9632 Soundcard
[Code]...
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Jul 20, 2010
I just installed Win7 (I need it for work -.-") and, of couse, it installed its boot loader and I can't boot F13 any longer. The question is, how do I restore GRUB from a F13 live installation media without destroying Win7?
I remeber trying something like that a couple of years before when I had the same issue:
Unfortunatelly, that doesn't work and at the next boot I am stuck with Windows again how to restore grub from a F13 live CD?
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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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Feb 16, 2011
1. Install kernel: see #2 (I make it with kernel file in /var/cache/apt/archive)
After installation of kernel, there may be some problems:
2. Win7 disappear in the grub: see the content below "Not see Windows 7: ", #6
3. Cannot connect to the network: see #8.
Quote: While trying to remove old kernels, I delete all of them by accident!!! There're now only two "Memory test" and a "win7" in the grub. Since there's lots of data on the disk, and I have no idea how to keep them safe if reinstalling the system, so I really hope not to do that.
Then I enter Ubuntu 10.10 cd, and sudo apt-get install a kernel (three 2.6.35 or so, of which two with "generic" and not, and one with "image"), everything seems OK. And I guess what I did really changed the system, since the source_list file in the /etc/apt/ did be changed. But the grub still has only 3 options. What else should I do to add the newly installed kernel to the grub? Or What should I do while I delete all kernels by accident?
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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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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 27, 2010
Partition info:
sda2: Win7
sdb1: /boot
sdb2: LVM, containing , home, swap...
[code]....
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Dec 24, 2010
I am compiling a new kernel. I have successfully compiled it, how to modify grub.cfg. I am using ubuntu 10.10.
Can I use 'update-grub' ?
I tried using that and even its updating the grub with new kernel. But after I boot the new kernel its showing
The disk for / is not ready or does not exist
#and some statements# M for recovery ...
Is there any problem with kernel compilation and why is that coming ?
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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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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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May 16, 2010
I just installed Windows 7 and it erased my Grub bootloader. I followed this tutorial: URL...And now when my computer starts up it goes to the Grub prompt: Code: grub>I guess I did not do the right partition but I'm having a lot of trouble getting it back to how it was where my computer at least loaded the Windows 7 loader.
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Sep 29, 2010
I recently updated, and now when I boot it only goes as far as grub command line. There is no grub menu. The computer is a Dell Inspiron 8600 laptop with only Ubuntu installed -- no dual boot, no weird partition schemes. Originally installed Ubuntu 09.04 on this computer, upgraded a couple times and it currently has (had) 10.04.1 LTS running. The update should have upgraded from kernel 2.6.32-23 to 2.6.32-24. I can boot with a live CD and mount the hard drive. The drive seems fine, so it appears to be simply a grub config issue. I have to boot with live cd to get online to check for potential solutions. So I'm taking some notes on how to use grub.
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Feb 25, 2010
I do computer forensics here in Afghanistan and I am trying to keep a clean image of a dual bootable hard drive. Here is what I try to do...
1. Boot into UbuntuLiveCD
2. I run "sudo dd if=/dev/zero of=/dev/sda conv=sync,notrunc bs=64K" to wipe the drive with all zeros.
3. I then install Windows by creating a new partician about 50GB.
4. I then install Linux by creating a partician in ext4 mounting it at '/' in addition I create a swap partician.
5. Next configure everything just the way I want it. I install all the drivers and software I need for my windows partician and build out the remaining part of the disc as a "data drive."
6. Then I use "dd" again to try to image my "clean slate" of a system. Remember I am dual booting. I dd the /dev/sda and gzip it.
7. When I go to restore it, I boot from the live CD again and unzip ig and "dd" it back onto /dev/sda.
8. I run fdisk -l and I get:/dev/sda1 * 1 6375 5120000000 7 HPFS/NTFS/dev/sda2 6376 11724 42965842+ 83 Linux/dev/sda3 11725 12453 ...... 82 Linux swap / Solaris.This means to me that it can "understand the file system"
9. But then when I take out the Live boot CD and try to get my "clean slate" machine back, the system goes into Grub Rescue mode with a grub command line "grub rescue>"
10. I tried using the tutorial on Grub2, but...
a. It would not understand the command "linux"
b. When I try to do insmod, it says it doesn't recognize the file system.
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