General :: Grub2 Does Not Find Windows XP
Dec 5, 2010
Sda2 is normally xp windows, but it installs a wrong partition type, and when I apply the mbr.bin, it works again with grub2, nope, it says:
Code:
autochk not found
Code:
# fdisk -l
Disk /dev/sda: 60.0 GB, 60011642880 bytes
255 heads, 63 sectors/track, 7296 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: 0x0005c9c1 .....
If I put the mbrofxp.bin (bs=512 count=1), then xp boots well but no grub2 so no linux
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Mar 14, 2011
I just installed CrunchBang Linux and it's great! But I can't boot into windows anymore. I'm sure it didn't delete my Windows partition-it's mounted. My linux partition is /dev/sda1 Windows is /dev/sda2
Code:
sudo update-grub
Found linux image: ....
Found initrd image: ....
Found linux image: ....
Found initrd image: ....
done
how I can get Windows to reappear? I've had bad luck with Grub in the past and I don't want to fight it on my own...
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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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Jan 30, 2010
I had Windows 7 installed on my system, then I installed Debian testing with grub2 as its boot manager.Initially I couldn't see windows entry in grub at all, so I ran:aptitude install os-prober kcpuload update-grub Now I can see the entry, but when I select it I get only Win7 system restore, instead of the the real thing. Any ides how to make it work?
EDIT: I tried the suggested approach to add a new file to /etc/grub.d, which generated an entry in grub.cfg, but it does not appear in the grub menu on boot :(
I have this:
grzes:/home/ga# cat /etc/grub.d/11_Windows
#! /bin/sh -e
echo Adding Windows >&2
cat << EOF
menuentry "Windows 7″ {
[Code]...
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Dec 6, 2010
It happens I need to use microsoft excel, so reinstalling windows XP. Since I have no cdrom on the pc nor usb cdrom reader, I would like to sort of fake the computer installing using grub2 and booting the iso that I will create
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Jul 17, 2010
They finally got the MCP89 kernel patch finalized and released as a Ubuntu DVD in the daily build of Lucid Lynx (good job!). I tried it, but even after following Ubuntu's Wiki-guide to fix various problems, a lot of my Mac's functionality broke and I don't want to take up that battle yet (of trying to get everything to work perfectly {I'm a perfectionist}).So I want to remove Ubuntu and GRUB2 from my system. But even with some experience with problems like these, I'm in the ultimate pickle. OS X uses the GUID Partition scheme and EFI, whilst bootcamp has a BIOS/MBR emulator to run Windows. I installed the GRUB bootloader to the MBR (I think {In "/dev/sda" during the install}). I use rEFIt to chainload into GRUB2 to boot Ubuntu, and I want to remove that icon, return to booting Windows 7 using it's own bootloader, and restore the GB's that Ubuntu took back to the Windows 7 partition.
I'm lost and (for the first time in a while) WAY over my head. I have no experience with EFI/GUID. (I just got my first Mac a month ago)
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Jun 19, 2011
It's quite easy to change the default boot entry through etc/default/grub. However, this only allows for the first entry to be changed. I want to be able to move all the entries in any order I like. What is the best/easiest way to do this?
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Jan 11, 2010
Here is my problem. Grub2 outputs error: unknown filesystem. Then when i use "ls" command it outputs this:
(hd0), (hd0,4), (hd0,2), (hd1) and when i "ls (hd0,4)/ or any of them it says: error: no such disk
So, heres my story. I dual boot vista and ubuntu from my main 320GB hdd. Today i tried to fresh install 9.10 on a different external hdd. The 500GB hard drive already had two partitions, a 30GB Fat32 and the rest NTFS. both of these partitions had about 17GB used on them. I installed off a cd and i shrunk the NTFS to allow for more partitions. I made a 4gb swap as logical at the end then a primary ext4 / partition in front of it. The drives are Fat32 sdg0, ntfs sdg1, then an sdg3 (which im confused about and says is extension), and sdg4 (with linux) and sdg5 (swap). When finished with the partitions it asked me to select where to mount the ntfs and i said /windows. When i tried to boot up it did not recognize my external apparently because it was plugged in via firewire. I switched to usb and it booted but then i got the error message in grub. Also, when i switched from firewire to usb the drive changed from sdb to sdg. How do i fix this problem? Will reinstalling ubuntu fix this? Is there an easier way? I tried reinstalling grub but it did not work.
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Feb 24, 2010
I had grub trouble with a hardware change and have been trying to solve this. I think I have done more harm then good. I can not boot into Ubuntu or Windows 7. Here is the boot info script and other info on my problem. Can someone please help me with this,
Code:
Processing triggers for libc-bin ...
ldconfig deferred processing now taking place
ubuntu@ubuntu:~$ sudo os-prober
/dev/sda1:Windows 7 (loader):Windows:chain
[Code]....
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Mar 19, 2010
I'm playing with my hard drive partitions and trying out different O/S versions so I want Grub2 to be aware of them on its boot menu. Currently I'm using the maintainer's version of Grub2 that came with karmic. Do I have to do a re-install of Grub2 or is there a makefile I can use? Specific commands that I would need be nice.
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Mar 10, 2010
How does Grub2 find the grub.cfg file?
I have (among others) these partitions:
/dev/sda5 'newsys' - my current system partition (Ubuntu Karmic, 64-bit)
/dev/sda2 'oldsys' - the original system partition
/dev/sda1 'boot' - mounted at /boot when running 'newsys'
[Code]...
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Jul 23, 2011
I have a raid array using mdadm made up of two drives. The drives have two parts, the first for boot information and the 2nd for LVM. Everything but /boot is under LVM management. Originly the two drives were hooked up to a sata controller in a computer with no on-board sata. However I was not able to get the computer to boot to a sata drive off of that controller. So there was an IDE drive with the MBR that loaded grub.
Now the computer in that setup seems to have died. So the drives were moved to another computer with an on-board sata controller and now the bootup works as far as getting to the grub menu. However after the grub menu the error message "Cannot find root device"
I found the boot info script [URL].. note at the time that was run the computer was running with one drive that has a full Debian install with the raid drive in question mounted and chrooted into. The script was ran from the chroot envirment.[URL]..
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Nov 14, 2010
I've installed a Squeeze-based distro - Crunchbang - with an encrypted root partition (no LVM), and it won't boot.
Here's what I get: Loading initial ramdisk. Loading, Gave up waiting for root device ALERT! /dev/mapper/hda5_crypt does not exist. Dropping to a shell!
Here's my partition table:
hda1 - Windows (Truecrypted)
hda2 - GRUB2
hda5 - /
hda6 - unused swap
[Code]...
What should I look for? Where do I go from the initramfs shell? Do I chroot? What then? This might be a Crunchbang issue (although others blame LVM which I didn't use, and it's the original Debian installer after all), but there's gotta be a reason it doesn't boot
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Dec 15, 2010
I changed the grub2 on my /dev/sda to Arch's version, instead of Ubuntu's, and now I keep booting into the initramfs prompt whenever I try to use Ubuntu. The automatic OS detection won't find it when I run the mkconfig command on grub2's wiki, and I currently have the following in /etc/grub.d/40_custom:
Code:
enuentry "Ubuntu Linux" {
set root=(hd0,3)
linux /boot/vmlinuz-2.6.35-23-generic
initrd /boot/initrd.img-2.6.35-23-generic root=dev/sda3 ro quiet
}
Which according to my partition layout, and a double check on gparted, is correct. Do I need to flag it as boot or something else? I tried putting Ubuntu's grub2 back on with the live cd but it kept saying /dev/ was busy.
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Aug 9, 2010
I'm using Core 2 Duo. So, from Intel website I found that it is 64-bit architecture CPU.
Long back I've installed Ubuntu OS on this machine. But I'm not sure if I installed x86-32 or x86-64 version of Linux. I want to know which version of Linux I'm using. How to know that?
How to find the same on windows?
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May 7, 2010
Is there any website that has complete list of all the shortcuts of applications/softwares of Windows, Mac, Linux Platforms. If Atleast for popular and veryuseful softwares.
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Jan 17, 2010
As the Title states, "update-grub" does not detect the windows xp partition on /media/sda1. And, when I attempt to mount it from teminal nothing happens, and from nautilus I receive the following error: "Error mounting: mount exited with exit code 2:
mount: only root can mount /dev/sda1 on /media/sda1" I am root.
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Aug 26, 2010
I booted into Windows 7 three times this summer and each time I did, upon restart grub was missing. In fact, the computer couldn't find any operating system, and displayed an error "No Module Name Found".
how to make windoze not commit suicide and delete grub?
I have a Dell Studio 1557.
:~$ uname -a
Linux dell-monsters 2.6.32-24-generic #41-Ubuntu SMP Thu Aug 19 01:38:40 UTC 2010 x86_64 GNU/Linux
:~$ sudo fdisk -l
[Code].....
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Oct 10, 2010
I've searched quite a bit and cannot find a solution to why using update-grub cannot detect my windows 7 partition Here is a log of the bootinfo script(hopefully it pastes correctly...)
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 #1 for (,msdos1)/boot/grub.
[code].....
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Oct 27, 2010
I upgraded a while back to Windows 7. I run two separate HDDs, with debian on sda and windows on sdb.Everything worked fine, up until i upgraded to windows 7. The installer forced me to unplug sda and make sdb primary. After installing I repositioned the HDDs and was stuck with a "NTLDR is Missing" messageAfter removing the search -fs--uuid tag from grub.cfg, Windows 7 booted for a good 0.5 sec and then rebooted. All that flashed was the "Starting Windows" page. I see similar bugs reported in the launchpad, but nothing that directly parallels this Here's my windows entry in grub.cfg:
Code:
menuentry "Microsoft Windows 7 Ultimate (on /dev/sdb1)" {
insmod ntfs
[code]....
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Nov 18, 2010
I've installed Xubuntu 10.10 on a very new EeePC 1201HA. The netbook came preconfigured from the OEM with the disk split into two Windows partitions of about the same size, one with Windows 7 starter. I removed the second partition (Which was just empty) and have installed a series of different distros since then, to try and gauge their support for the 1201HA hardware. I finally settled on Xubuntu, which can support most of the laptop's features with some tweaks.
However, after this last install, and a Grub config change needed to make the framebuffer work on this hardware, I'm unable to boot Windows 7.Grub shows it on the menu normally, but when I select the Windows 7 entry, I get the message 'Reboot and select proper Boot device or Insert Boot Media in selected Boot device and press a key,' which I understand isn't from the OS but rather a BIOS message which implies there is no loader.
I've tried using the Windows 7 system restore to do everything short of rewriting the Windows bootloader to the MBR (Which would, of course, remove Grub and thus not solve my problem, as I couldn't load Ubuntu from it). I attempted to fix the boot sector on the partition with the system restore tools, to no avail. And because this is a netbook with no optical drive, I'm unable to reinstall from a disk.
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Dec 5, 2010
So to make things short, here's my situation: I was having the "no module found" problem, because dell software kept on messing with the MBR So I restored the MBR using Windows recovery and deleted the dell software Re-installed ubuntu 10.10 off the liveCD ~Then I had problems getting GRUB2 boot menu to show at boot, but i fixed that~ Now I'm having the problem where whenever I try to boot into windows 7 through GRUB2 instead of booting windows I just get:
"bootmgr is missing"
Note: I can still boot into Ubunutu 10.10 just fine.
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Feb 17, 2011
I installed Ubuntu 10.10 on my computer from a USB. I did not use wubi to install ubuntu. The computer already had Windows 7 installed. According to gparted, Windows 7 is installed in sda1, linux swap space is in sda2. Then sda3 is shown as a drop down menu containing sda5, where linux is installed. A picture to show this is attached . sda4 is a recovery partition that came with the computer.
The problem is that Windows 7 sometimes boots, and sometimes it does not boot. Most of the times it does not. Ubuntu boots perfectly. The process to boot is the usual, turning on the computer, wait for grub to load. If I pick Windows, it goes to the splash screen (which is by the way not the usual windows 7 splash screen, it resembles more the vista splash screen, picture attached. I do not know the reason, and I have no idea if it has anything to do with the problem) About 80% of the time, it simply reboots a few seconds after the windows splash screen is shown. The reboot takes me back to the usual HP splash screen, then grub again. The other 20% of the time, it boots normally and works perfectly well.
Right after I installed ubuntu Windows was shown in grub as installed at sdb1. I updated grub and now it is shown as sda1. I already tried some grub custom entries for loading Windows differently, but they all present the same problem. Please do not discard a custom entry as a solution, as the source I used for these custom entries was not entirely trustable.
I also tried popping in the windows installation disk and trying a system repair, but apparently no errors were found.
Reinstalling grub using Ubuntu live cd (booted from a USB) did not work either...
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May 16, 2011
i installed ubuntu / under /dev/sda1, then installed Win7 under /dev/sda2, as primary. Extended partition and its logicals are for data.
After Win7 installation, i can restore the grub2 for ubuntu, with grub-install and update-grub2. It can even probe the NTFS partition under /dev/sda2. But at restart, when i tried to go to Win7 selection, it does nothing, screen goes black, blank, with a single cursor blinking.
Some data:
Ubuntu Natty 11.04
From /etc/grub/grub.cfg:
Code:
menuentry "Windows 7 (loader) (on /dev/sda2)" --class windows --class os {
insmod part_msdos
insmod ntfs
set root='(/dev/sda,msdos2)'
[Code].....
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Dec 9, 2010
menuentry "Windows 7 (loader) (on /dev/sda1)" {
insmod part_msdos
insmod ntfs
set root='(hd0,msdos1)'
search --no-floppy --fs-uuid --set 3850d16450d12980
chainloader +1
}
This is automatically generated after installed ubuntu 10.10. It shows black screen with a flashing cursor after press enter.
Grub 0.97 also does this with:
title win7
fallback 2
find --set-root --ignore-floppies /bootmgr
chainloader /bootmgr
savedefault --wait=2
But the weird thing is my usb stick can boot windows 7 successfully with the same configuration. Whats wrong with that? How can I do with grub.cfg?
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Apr 28, 2011
Back in the old days of PC-DOS 3.1, computers are much simpler than today's. I can learn a lot of how File System works with tools like PCTools, Norton Disk Doctor, and [URL]. Have been working exclusive in corporate database application area for over a decade, my knowledge of how these stuff work is diminishing. Standard-clean OS (Windows, Linux) installation is all I can do now. And it starts to cause me many data-loss troubles, when I have to perform something that I don't have much insight, such as install and remove peer linux os or move and resize partitions.
I'm looking for books, web resources, or communities where I can educate myself on how various file system works, for which I can have in-depth answer to questions such as:
How to remove ubuntu and grub2 ? (I recently did that, but with a lot of frustration when I was not really sure what I was doing and confront with some scary error message like "Missing BootMgr" What kind of disk-partitioning operation can be performed non-destructively, and why ? What is Active partition ? Primary Parition ? Extended Partition ? How it stored on the disk. There are many free partitioning tools out there, which one is safe to used ? NTFS, Ext3, Ext4, .. What the differences ? How to choose it wisely.
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Aug 16, 2011
I want to connect my Debian Squeeze machine to my school wireless network with wpa_supplicant.
I think the network uses 802.1X authentication, because when the other students connects to the network for the first time in Windows they enter their username and password then the connection is established. I have asked the the IT staff but they do not known what 802.1X, PEAP EAP etc. is and just say "Enter the login details in the box!".
If I bring a Windows 7 machine to school and successful connects to the network, is it then possible for me to extract the information [and extract a certificate if used on the network] from Windows somehow so i can setup the wpa_supplicant.conf correctly on Debian?
The information I want to extract is which protocols are used, like PEAP,MSCHAP etc.
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Aug 13, 2010
I have a shared system. One half Linux and the other Windows. I recently did an upgrade to Windows 7 and now I cannot access the internet on the Windows side, and I cannot find the driver?? In Ubuntu I can only access via wireless not through the ethernet network adapter. The motherboard is abit nf8v. Sorry, more of a Windows question as to Linux.
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Mar 28, 2010
how to use Grub2 to boot Windows XP and Linux.
[code]...
there were no entries in the Grub 2 menu after booting. I don't really understand the numbering of hd0,0 to like sda, but I changed "root (hd1,0)" to "root (hd0,0)" if Windows is on hd0, but after rebooting, I still didn't see it. I read somewhere that Grub2 starts partitions at 1, but wasn't sure that was true because in menu.lst they start with 0 sometimes. know entry-level steps to solve this?
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