Ubuntu :: Grub Prompt After Upgrade To 11.04?
Jul 19, 2011
I am a casual user of Ubuntu, which is installed in a vmware virtual machine. After upgrading to Ubuntu 11.04, and after the reboot, it just booted up to a grub prompt.
I found a useful post about resolving this problem here: [URL]
The sequence of grub shell commands to be entered are these: set root=(hdX,Y) linux /vmlinuz root=/dev/sdZ ro initrd /initrd.img bootwhere the X, Y, and Z are replaced with appropriate letters/numbers.
The problem that I am having is that TAB is not completing the commands at the grub shell, thus I have no idea what the letters/numbers to use.
My installation is completely generic - I have not customized it in any way. check their vmware/Ubuntu system and let me know what letters/numbers to use.
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Jun 7, 2011
I'm running Ubuntu within VMWare on a Macbook. I followed these steps [URL]... Recommended) to upgrade form 10.04 to 11.04, which actually upgraded to 10.10 first, and then a graphical upgrade brought me to the 11.04 upgrade, but then i ran into the problem where a grub> prompt appears when i start up the machine... nothing else happens. I found this thread [URL] which seemed similar to my problem, but the suggestions didn't work.
Code:
grub> ls
(hd0) (hd0,5) (hd0,1) (fd0)
grub> boot
error: no loaded kernel.
grub> linux
error: no kernel specified.
that's what I see. any way to resolve this without having to download the CD and start from scratch? It's grub 1.98, if that's important to know.
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May 31, 2010
I have a problem when tried to upgrade my fedora 12 to fedora 13...
I run this command :
su -
yum update rpm ---- running success
yum -y update --- running success
After this, my laptop hang so i force to shutdown by pressed power button ! Next problem which is after i boot my laptop, it always shows me, GRUB prompt shell, GRUB > (commands GRUB) !
Code:
GNU GRUB version 0.97 (640K lower / 3072K upper memory)
[ Minimal BASH-like line editing is supported. For the first word, TAB
lists possible command completions. Anywhere else TAB lists the possible
completions of a device/filename. ]
grub>
I already run this command :
Code:
grub> find /grub/grub.conf
(hd0,5)
grub> root (hd0,5)
Filesystem type is ext2fs, partition type 0x83
grub> setup (hd0)
Checking if "/boot/grub/stage1" exists... no
Checking if "/grub/stage1" exists... yes
Checking if "/grub/stage2" exists... yes
Checking if "/grub/e2fs_stage1_5" exists... yes
Running "embed /grub/e2fs_stage1_5 (hd0)"... 30 sectors are embedded.
succeeded
Running "install /grub/stage1 (hd0) (hd0)1+30 p (hd0,5)/grub/stage2 /grub/menu
.lst"... succeeded
Done.
But when I reboot, it always shown me GRUB prompt shell.
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Jul 10, 2010
I installed 10.04 clean on the PC.Not other operating system.It booted to Ubuntu fine after the install and all appeared to be working fine.Used the upgrade manager to install the upgrades to the basic system.I had not yet loaded in any non-ubuntu or medibuntu repositories so this was the first, basic upgrade.After the upgrade,I can no longer boot to Ubuntu but boot to a grub prompt instead.I presume this is a recover prompt. How do I "recover" and continue booting to Ubuntu?
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Jan 15, 2011
So I wanted to get rid of ubuntu 10.10 on my HP pavilion dv6 laptop as I wanted to make some hd space. Its a dual boot with windows 7. I deleted the ubuntu partition and expanded the windows partition to fill the whole hard drive again. When I restarted my laptop I got the "error: no such partition. Grub rescue>" message.
I tried inserting my ubuntu 10.10 boot cd but whenever I boot from the cd I get the exact same grub rescue error. Is it possible to remedy this situation from the error? I am currently unable to download a windows recovery cd so I'm stuck in the grub rescue page unless its possible to fix this mess from the error prompt.
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May 6, 2011
After certain system-wide changes, like kernels updates, I obtain grub prompt on restart. However, if I put the hard drive into another computer (b), it boots up fine. Since, however, I use the present computer (a) regularly, I only use b to purge and reinstall grub using the chroot method. However, doing so every time is time consuming; and I cannot change anything in the defaults and run update-grub without obtaining a grub prompt on restart. How do I fix this?
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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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Mar 21, 2011
I have used CentOS for a while and have never run into this issue. I searched all over and didn't see a similar issue anywhere, I did an install of CentOS as a server (no GUI) with only the base. Partition is /boot ext3, size of 100MB. The rest of the drive is partitioned as / with ext3. This is being done on a CompactFlash card of 32GB in size. The BIOS sees it as an IDE drive.
When the install completes and the system reboots, the grub stops at the grub> prompt. There is no menu for OS options. If I do the following commands:
grub>root (hd0,0)
grub>kernel /vmlinuz-2.6.18-194.el5 root=LABEL=/
grub>initrd /initrd-2.6.18-194.el5.img
grub>boot
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Mar 6, 2010
I have been trying ubantu 9.10 via dual boot (with windows XP) for a while now. Today I decided to wipe out windows and install ubantu only. After I completed the install I get GRUB prompt and I cannot type anything. So I booted from CD again and opened ubantu from disk. ran the boot_info_script as mentioned on other posts here and here is the results
Boot Info Script 0.55 dated February 15th, 2010
============================= Boot Info Summary: ==============================
=> Grub 2 is installed in the MBR of /dev/sda and looks at sector 2928391 of
[code]....
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Sep 9, 2010
I use wubi 10.04 installed on my xp drive. the other day my pc froze while surfing the internet. I used the following key combination to reboot my pc (this is the first time I'm trying it), but when I selected ubuntu, I don't get the grub boot menu, on the other hand, I get a little welcome message to the grub prompt and "grub>"How do I fix this and boot into Ubuntu?
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Jan 6, 2011
Just got done installing U 10.1 into my old Dell desktop. Since I'm pretty darn new at Linux, I'll do my best to explain. Upon selecting Ubuntu to boot, I get a 'grub>' prompt, much like C: in DOS. But, at this point, I haven't the slightest idea of what to do.
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Oct 30, 2010
I rebooted my computer recently after installing some updates in Ubuntu and now when grub launches it goes straight to the grub prompt and I don't get a menu. I tried searching around online and have tried what seemed like the most common fix but to no avail:
find /boot/grub/stage1 (returns hd1,0)
root (hd1,0)
setup (hd0) -I also tried (hd1,0) and (hd1)
-then reboot- (still get no menu and goes straight to the prompt)
I then tried booting into Ubuntu live, using apt-get to install Grub, and then running through the install process using similar commands, but to no avail. When I run setup it finds my config info and doesn't show any errors. I have a menu.lst file with lots of entries for different kernel versions and a windows 7 install on hd0,0. I am running Ubuntu Ubuntu 10.04.1 LTS, kernel 2.6.32-25-generic-pae.
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Nov 28, 2010
i have dual boot computer win7 and 10.04 ubuntu. i installed the ubuntu inside the win7
now i have problem that GRUB prompt out every reboot. i could get into system by type this(but GRUB come back after reboot)
Code:
set root=(hd0,1)
loopback loop0 /ubuntu/disks/root.disk
set root=(loop0)
linux /vmlinuz root=/dev/sda1 loop=/ubuntu/disks/root.disk ro quiet splash
initrd /initrd.img
[Code].....
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Mar 12, 2011
I'm having a issue. It first started a few nights ago, and after booting from the live cd and reading around, I saw it mentioned somewhere that it might help to update GRUB. I did this using sudo update-grub. This took care of the issue, with an unexpected, but not altogether unwanted result: instead of having to choose a temporary boot device to boot on to the external drive Ubuntu is on, I got a grub menu which showed the the OSs for both HDDS. I thought all was fine, but a few days later, same thing. Updated grub again, and all was okay. Tonight, it happened again.
When I try to update grub now it says:
Code:
ubuntu@ubuntu:~$ sudo update-grub
/usr/sbin/grub-probe: error: cannot find a device for / (is /dev mounted?).
Here's the result 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 on the same drive in partition #1 for (,msdos1)/boot/grub.
=> No boot loader is installed in the MBR of /dev/sdb .....
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Apr 2, 2011
In my previous thread I found out that liquorix kernel wasn't booting properly, so I decided to uninstall it. But then my pc froze and when I restarted it, I had the grub prompt again, only this time the kernel set to boot is 2.6.35-25-generic.
Output of bootscript:
Code:
Boot Info Summary:
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Apr 13, 2011
Just did a full install of the latest version of Ubuntu. I've got a high-end alienware m17x laptop with dual SSD drives in a raid array. Ubuntu installed fine, but when I reboot, I get to a grub rescue prompt and it never gets to desktop. I'm booting from the liveCD while I try to figure out how to fix it.
[Code]....
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Oct 17, 2010
After upgrade to 10.10, I only get the command prompt. Fortunately, all my XP Pro machines are running, and I am using one of them to access this Forum. I suspect that nVidia graphics driver did not load correctly. running startx at the command line gives numerous lines of text apparently understandable xorg gurus. It looks like nvidia_drv.so did not load and module "nvidia" did not load [loader failed, 7] and next line says no drivers loaded.
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Feb 3, 2010
I installed 9.10 with wubi and lately I had a boot problem with the result is that it boots to a grub prompt. I tried several commands, but no success. I thought I hosed the system. [URL]. Once I copied the new wublidr file over, that did it! Give it a shot, as it works.
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Feb 6, 2010
I just installed Ubuntu 9.10 on hd1 - /dev/sdb1 at the end of the installation I chose to install grub at hd0 - /dev/sda1. The file system I chose was ext4 for ubuntu "/" - 50 GB,
ext3 for "/home" - 5 GB, and 1.5 more for swap. When the installation was complete I got the following prompt:
GRUB loading
error: no such disk
grub rescue>
>
There was nothing I could do, pressing TAB did not show me all the commands like grub is expected to. Typing 'help' did not show any commands as well, instead it showed me - "NO SUCH COMMAND" or something like that (I did not took note of what the output was). I believe the problem is in the grub loader - which was not really installed properly in hd0 - /dev/sda1 (which is FAT32 - windows)
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May 11, 2010
Two days ago I decided to migrate from Fedora to Ubuntu 10.04. On the Ubuntu install I chose to format the entire disk as I do not want a dual boot system. I have three disks and have set the bios to boot from dvd, then main disk, then 2nd disk, then any other bootable drive and coming from a working Fedora I know I have my "slaves" and "Master" pin positions on the disks set correctly.
When I try to boot the fresh install of Ubuntu I do not see any menu options, no boot image nothing, I get taken immediately to a grub command window and I dont know how to fix things from there. I have tried to fix things by booting into the "try before you 'buy'" thing on the installation cd and I can see that Ubuntu has been installed on the main disk, but all in all Im stuck.
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May 13, 2010
i have dual booted ubuntu with windows. but after a few days i realized that ubuntu was too slow for my system and then decided to uninstall it and planned on installing it later. So i deleted the partitions on which ubuntu was installed. I rebooted the system and the grub rescue promt appeared, i already knew the work around was to restore the windows MBR using the live cd i used to install ubuntu or the Windows installer. But the main problem is my DVD suddenly stopped working . So my question is, can i boot windows using the promt? is there any commands? or can i uninstall grub using the rescue promt?
My desktop has been down for more that two weeks
Ubuntu version: 10.04
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Jun 19, 2010
So I had Ubuntu Server installed and I decided to make some new partitions using gparted via a live usb of Ubuntu desktop. And so I think messed up pretty badly. Ubuntu Server won't boot and I get the following error followed by a grub rescue promt:
Code:Diskette drive 0 seek failure
error: file not found grub rescue >
To me, it seems like some boot files may be missing if not the whole system. After I made the partitions, the live USB of Ubuntu was still working fine until I rebooted.So here is the bigger issue, I figured I would just reinstall everything all over again, but instead I can't.
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Jun 30, 2010
upgrading my Karmic 9.10 to Lucid 10.4 I can't boot anymore to Linux only to Windows.My installation is a WUBI installation and I installed it on the only harddisk I have in the folder c:ubuntuNow when I boot I get a grub prompt and when I do LS I see hd0,msdos01 as partition.Now's I've tried to manual boot it by using the following commands from the ubuntu manual
set root=(loop0)
linux /vmlinuz root=/dev/sda1 loop=/ubuntu/disks/root.disk ro
after this command I get an error
[code]....
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Oct 24, 2010
i am a newbie to linux and i am stuck at the GRUB rescue prompt at the startup.i have dual boot windows and Ubntu 10.04.I want to remove GRUB2 from Harddrive itself.can u suggest ant command on GRUUB recue prompt ?
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Oct 26, 2010
I have two hard-drives. The first, C: (sda1) has Windows 7 x64 installed on it. The second hard-drive, D: (sdb1), was partitioned when I installed Ubuntu 10.04 into two separate partitions: NTFS and Ext3.
I wanted to remove the Ext3/Ubuntu partition and reclaim that space (i.e. completely remove Ubuntu). I did NOT install using Wubi. I booted up Win7 x64, went into Disk Management, right-clicked the D: partition corresponding to the Ext3 filesystem (shows up as unrecognized in Disk Management), and opted to delete the volume. I then right-clicked on the NTFS D: partition, and opted to Extend the Volume to reclaim the previously partitioned space.
When I rebooted, I ended up with the following error:
Code:
error: no such device: f81368be-ea53-43d2-b8de-bb52b5ac322c.
grub rescue>
I cannot get beyond this screen. Rebooting always puts me at the grub rescue prompt. I have looked at the HOWTO: Purge and Grub Rescue Prompt threads, but was not able to understand the instructions and am therefore asking for your help. However, I was able to install the boot script as those threads suggest, and here is my results.txt:
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 #2 for /boot/grub.
[code]....
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Dec 1, 2010
I just ran the most recent updates on ubuntu, restarted my computer and now all that shows up is the Gnu Grub prompt.
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Jan 10, 2011
I upgraded my dell inspiron 6000 from ubuntu 10.04 to 10.10 then rebooted and now I am stuck at the grub prompt. I am able to boot from a flash drive and have run the boot script. This laptop did not have a dual boot system on it but it did have windows on it at one time, converted to ubuntu.
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Mar 28, 2011
i have a dual booting the first one being ubuntu 10.04 within which i have installed windows7.Unfortunately,i've formatted that part of my hard disk in which i've had ubuntu. Now my problem is i cant load into any of the two os and i dont want to loose my vital data in the system.I've tried booting using the live CD but in vain.i desperately need my info in my laptop.
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Jun 20, 2011
I have installed BackTrack 5 and I have set GRUB up:
Code:
root (hd1,4)
setup (hd1)
However, the GRUB prompt appears at boot instead of the GRUB menu. However, when I boot from the Live USB, the GRUB menu works fine. Here are the contents of the grub.cfg:
Code:
#
# DO NOT EDIT THIS FILE
#
# It is automatically generated by /usr/sbin/grub-mkconfig using templates
# from /etc/grub.d and settings from /etc/default/grub
# .....
The reason I want the GRUB menu to show up of because I would like to dual-boot BackTrack 5 with Windows 7.
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Oct 20, 2009
Im running fedora10 and have installed quite a few extra apps etc that are not from yum. Things like vmware workstation, Lotus notes, crossover etc. Every now an then I get a popup asking to upgrade to fedora 11. I do want to move onto 11 but does this way of upgrading work well or is there a better way to upgrade. I was thinking of making an image on my laptop first but have not found a good image tool that allows me to save and restore an image to a network.
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