Ubuntu :: Windows OS Disappeard From Grub After Kernel Update
Jan 12, 2010
I'm running a dual boot Vista/Ubuntu Jaunty. I made some changes to the grab menu so that my windows OS would appear at the top of the list .I know I could have changed the default so that Vista would have been highlighted instead of Jaunty. But the reason I moved it to the top is because when I do a kernel update, I would still want Vista to be the default booting OS. Anyways, after the update my Vista OS disappeared from grub. It didn't get deleted because the Vista partition is still accessible from Jaunty. Can anyone help me boot into Vista and preferably make it the default OS even after a Kernel update? I attached part of my menu.lst .
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Apr 23, 2010
I was having trouble installing rt73sta, then i came across a thread that showed me how to blacklist the rt drivers, then i realised the ubuntu live cd came with the rt drivers already , but after a while the drivers disappeard i un-blacklisted the others and ive even tried a fresh install of the cd but i get nothing under lsmod|grep rt, i don know were theyve goneWould they be there if i done a fresh download and burn of the cd? Or is it something to do with my computer? it seems funny theyve just gone and not on a fresh install even after formatting hard drive and deleting and re-sizing the partitions
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Dec 1, 2010
Ran the updater, went to boot to Win7 to use Photoshop and realized that the grub menu was gone. Ubuntu boots by default now. I tried running "sudo update-grub" at a virtual terminal and while it listed the various linux kernels ok, it then got caught in a loop spitting out some crazy looking errors. I rebooted and Ubuntu came up fine. I tried running "sudo update-grub" again from the gnome terminal and it hangs the whole computer for a few minutes and finally gives me this:
[Code]...
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Feb 5, 2010
I had Windoze 7 on my wife's laptop, it started running crappy so I install Ubuntu 9.10 via Wubi (so it is not a partitioned dual-boot). I did the latest update, which I think included a kernel update. When I rebooted and chose Ubuntu from the windows dual boot window, instead of loading the GRUB I see an error message flash:
Code:
TRY hd0: NTFS no Wubi(something-or-other)
it flashed almost too fast for me to catch - it took about 10 reboots to figure out that much... and then it goes to a screen that says
Code:
GNU GRUB version 1.97~beta4
sh:grub
I tried several different commands (you can prompt it to give you available commands by hitting TAB), but it said it couldn't detect a kernel. Also, before I updated, I had tried to install iTunes via these instructions. iTunes seemed to have installed fine, but I hadn't tried it yet.
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May 15, 2011
After upgrading Maverick (perfect!) to Natty, I was unable to boot into anything. (kernel 2.6.38). However, through much PITA, I was able to boot into an older kernel. (2.6.35). I completely removed 2.6.38, rebooted, reinstalled it and ran update-grub. However, 2.6.38 is no longer available no matter how many times I run update-grub, and the only option left is 2.6.35. In my humble opinion, the Natty upgrade experience is rubbish. (blank screen, total PC hangs, boots into a blank screen with only a blinking cursor, NVIDIA official driver not working, bootable only into older kernels etc.)
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Jun 13, 2011
On my laptop running Ubuntu 10.04 I have edited /boot/grub/grub.cfg in order for the shortcut keys for changing brightness and volume to work. I added
Code:
acpi_osi=Linux
at the end of every kernel image line, and it works ok. The only problem is that every kernel update overrides the grub.cfg and therefore I have to reedit the file over and over again. So the question is, where could I put the mentioned kernel startup parameter, so that it doesn't get lost on every kernel update.
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May 18, 2010
I'm using Ubuntu 10.04 Lucid LTS. I have problem with my Ubuntu,Whenever I ran "sudo update-grub" command it did not detect my Ubuntu kernel nor Windows XP installation on another drive (I installed Ubuntu and Windows in different drive).It just display "Generating grub.cfg" and then "done". No "Found kernel..." message.
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Sep 6, 2010
I did the kernel update via Update Manager today. Unfortunately , after this , disaster happened whereby sh.grub> prompt appeared on screen.
I got no idea how to rescue or repair the grub. I installed Ubuntu 9.10 in my E: under Windows 7 partition and labeled as "ubuntu". It has dual boot capability.
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Mar 21, 2011
Ubuntu 10.10 latest kernel 2.6.35-28.49 update is broken. update just stalls when it gets to this.Quote:
Sub-process /usr/bin/dpkg returned an error code (1)...generating grub.cfg I have tried the following to no avail..Quote: sudo apt-get install -f sudo dpkg --configure -a sudo apt-get update && sudo apt-get upgrade
I have not changed any hardware.
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Jan 9, 2010
I used the update manager to update the kernel and whatever the other recommended updates were yesterday. I shut the computer down overnight and now when i try to boot into Ubuntu 9.10 i get a basic grub shell and when i try commands like "boot" it tells me there is no kernel loaded. I installed Ubuntu with Wubi so it is a dual boot system.
I've tried to access the Linux volume with a live OpenSuse 11 CD but there is no device to mount. It sees the entire hard-drive as if it hasn't been partitioned. I don't necessarily need to fix the installation. I just need to get my files back.
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Jan 15, 2010
I run Ubuntu and yesterday the update manager downloaded a new kernel I think. It asked me to restart. I unlike before where when I select Ubuntu at boot up time and it just goes into it I am getting this black screen called GNU GRUB. What do I do here? Has Linux got corrupted by the updates I downloaded?
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Jun 3, 2010
I have some pending upgrades, one of which includes kernel 2.6.32-22 but whenever the upgrade gets to running the update-grub command, it gets stuck on "Found memtest86+..." Here's the actual output...
[Code].....
It's been hanging like this for hours today, preventing me from getting any of the pending upgrades. I've cancelled it several times, deleted the dpkg lock files and tried it again only to have it hang all over again.
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Dec 20, 2010
i have a Winxp and Ubuntu 10.10 system(wubi-install, update from 10.04 to 10.10).I have fixed the update problem 10.04 to 10.10 with the modified wubildr.Today there was a kernel update from 2.6.32 to 2.6.35 (???) and after the restart i can boot only xp.If i choose Ubuntu, there is a black screen and the computer restart. the ubuntudisksootgrub folder is empty!?!Here is my log:
Code:
Boot Info Script 0.55 dated February 15th, 2010
============================= Boot Info Summary: ==============================
[code].....
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Mar 24, 2011
I have a new acer machine which runs fine on 10.10 mythbuntu desktop livecd. Install seemed fine.
Then I ran an update and on reboot I get a kernel panic error. Research on this reveals it as a very deep subject which can consume many hours, so I opted to reinstall.
This time with ubuntu 10.10. I've tried different CDs, liveusb. Same errors.
So, the question is this - where do I concentrate my efforts - somewhere ubuntu doesn't like this machine, or grub. Does a reinstall overwrite the grub install too? Or do I have a bogus grub install I need to purge before I will get anywhere.
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Apr 7, 2010
after doing an upgrade to 10.4 and updating grub I get this message. how do I address this
[Code]...
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Feb 2, 2011
When trying to clean up old kernels I accidentally deleted the current kernel (2.6.35-24). I then had problems when I reinstalled and found that I could only boot into command line mode. I was able to fix this problem but have since installed the latest kernel release (2.6.35-25) and now have the same problem as before. Of course, I could do what I did before but I guess this is going to occur whenever I upgrade in future.
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Oct 15, 2010
I have manually added an entry for Ubuntu in my grub menu, using Yast. But every time the kernel is updated, this entry disappears. On the other hand, the one for Windows, that was added during OpenSuse's installation, is still there. So how can I keep this entry for Ubuntu ?
Edit : when I save the menu configuration in Yast, I get the following message :
Code:
Connecting to deprecated signal QDBusConnectionInterface::serviceOwnerChanged(QString,QString,QString)
kbuildsycoca4 running...
kbuildsycoca4 running...
[Code]...
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Jul 14, 2011
I just started using Ubuntu 10.04 for development reasons and installed Ubuntu on a seperate harddrive with dualboot option with Windows 7.Today Win 7 got an update and I mysteriously got bumped back to the grub screen after selecting Windows boot option, but my Ubuntu was ok. After that I probably did the worst I could, and googled the problem and tried out some years-old advices which messed up my ubuntu boot as well.I am currently using my computer through Ubuntu Live Usb.
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Apr 15, 2010
I need to add my windows installations to the grub menu.I have windows 7 and windows xp on hd0 and windows xp on hd1.Using 'sudo update-grub' doesn't seem to help.So how do i fix this?
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Jul 21, 2010
I have been phenomenally unlucky with Ubuntu as seen my my post history and decided to dual boot.
I set it all up with a clean install, when I tried to load Windows from Grub the computer restarted. After much headache I managed to set it up correctly (when it wouldn't load from Grub I booted from the Windows CD and clicked on "Repair computer" and it finally worked).
Now I am having the same problem as before--I think my installed all the updates from Update Manager and it included a grub one. Now I can't load Windows from the grub menu: It goes to the Starting Windows screen and then reboots my computer. If I do it again it gives me an error message and an option to perform "Startup repair". When I try to do Startup Repair, the computer reboots after a few loading screens.
So I tried what worked before and put in my Windows 7 CD, and clicked on Repair Computer. BUT NOW it gives me an error message somewhere along the lines of system restore is not compatible with my installation of Windows, and to insert a compatible recovery CD. This is the ONLY Windows CD I have (legitimate copy).
Over the course of this migration experiment I have installed and reinstalled both operating systems 7-10 times total. I'd rather not do it again. My poor laptop is probably wondering what the heck.
I can't stick with Ubuntu alone because my wireless doesn't work with it, my grad school files are not completely compatible with open source software, and I can't play the games I'd like to. So I must have the option to at least dual boot into Windows.
When selecting Windows it restarts the computer entirely to the Compaq screen, not just to the Grub menu, if that matters.
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Dec 23, 2010
after yesterday's update to kernel 2.6.35.10-72 my grub.conf didn't get updated and ll /boot shows that neither vmlinuz or initramfs exist for that kernel. uname -r though tells me I'm running 2.6.35.10-72.
How can I do that? and on another more reallystic matter how can I generate the missing files so I can manually update grub.conf?
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Jan 25, 2010
I have a vista/ubuntu 9.10 duel boot laptop. Last week the screen was broken so it went back to the manufacture. Before that I rename the /etc/grub.d/10_linux file and ran grub-update so that Grub will only show windows boot menu (in case it confuses the repairman) now I have the laptop back and I am eating my own medicine.how to restore my ubuntu boot menus? I can now only boot into windows, although it seems like I can go to my ubuntu partition and change back my grub.cfg (which I did not backup!)but I can't remember the menuentry details.Is there any way, other than manually change my grub.cfg, so that I can boot into ubuntu again?
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Jun 20, 2010
After doing my weekly update, I discovered that I am not able to access Windows.
My windows entry still shows in my grub list on the boot menu The windows partition is still there
However, when I select windows as the os from the boot menu, i get a black screen with a white cursor in the top left corner.
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Jul 9, 2010
Ubuntu's update manager recently updated the Grub menu.lst file. It let me decide if I wanted to keep my old menu.lst or the new one. After deciding that I was fine with the new one, I found out that I can no longer boot into Windows 7. I had previously edited menu.lst so that Windows would be at the top of the list, however, I didn't notice that this had put it into the automagic update area, and I realize now that I should have just edited what the default number was instead of moving around the entries.
Anyways, I can no longer access my Windows 7 OS via Grub, and I was wondering what sort of fix I can have for this. I've tried running update-grub, but it hasn't fixed the problem. The Windows bootloader is on the first partition of the only hard drive, as far as I can remember.
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Oct 23, 2010
With a bit of help from this forum I managed to install 10.04. The solution was to add i915.modeset=1 to the options when booting up from CD.Now I need to do the same in order to boot up from HD. I've opened /etc/default/grub and changed the relevant line to include the above option. But I need to run "update-grub" and it comes back with an error to the effect that it 'can't find a device for / (is /dev mounted?)Also, the boot menu only has ubuntu - no sign of windows in my intended dual-boot. What can I do?
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Nov 29, 2010
I am running Ubuntu 10.10. Normally when I boot, I get the choice to run Ubuntu or the Windows loader, where I choose between 7 or XP. I have just noticed that when I boot now, I do not have the choice of going into windows. This has happened on two of my PC's just in the last few days. I assume one of the updates has overwritten the grub configuration file as I still get the grub menu but not the windows option. I have tried sudo update-grub but this did not solve the problem.
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Sep 14, 2014
I installed Windows Xp 64bit(in a partition called d:) with dual boot with Debian Wheezy. Installed first Windows Xp and after Debian Wheezy, but grub is not seeing Windows!
Look at my "fdisk -l".
root@robgeek:/home/rob# fdisk -l
Disk /dev/sda: 80.0 GB, 80026361856 bytes
255 heads, 63 sectors/track, 9729 cylinders, total 156301488 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: 0xe274e274
[Code] ....
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Jun 24, 2009
I'm new to linux ...
i have managed to install vnc server on my linux server ..
and also installed GNOME, i connected via VNC Viewer and the desktop showed ..
but then i closed the command prompt windows that was opened on the desktop, now when i connect via vnc viewer i get an empty desktop ...
how can i re open the GNOMe?
there's no cammand line in it now!!
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May 2, 2015
After some updates Jessie 8 my boot grub shows now 2 kernel versions to boot from.
3.16.0-4-amd64
3.16-3-amd64
- How do I know which one is the newest and if happy with it, how to remove the older one?
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Mar 30, 2010
I have been using Wubi for a few weeks now and I am really impressed. I have endured a lot of problems with grub and kernel problems etc but now realise that its just the Wubi inside windows! I have it all set up with the cube to perfection and all drivers are running great after a bit of tweaking. So a bit of a lazy question really, can I install it properly onto my drive, and retain all the hard work I have put in setting it up? I have tried, but when it comes to selecting the drive that the Wubi is installed on it just says format with no backup option.
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