Ubuntu Installation :: Not Booting - Show 'unkown Command' & No Grub

May 3, 2010

just tried downloading the latest version of ubuntu and install it on my laptop got an error message at the end of the installation (an I/O error, dev sr0,sector something) now when booting i got grub rescue. the only command working are ls and set. commands such as 'linux' or 'boot' show 'unkown command'

ls (hd0,1) or ls /boot/
results in
unknown filesystem

I tried to reinstall grub using the 3 different methods as in [URL] got no error message while doing so except when typing sudo grub-install --recheck /dev/sda it told me something about being unable to locate ubuntu or something along those lines - sorry i thought i'd remember .. running out of option is there a possibility to download the latest pre 10.04 stable version?

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Ubuntu :: Error: Unkown Command 'drivemap'

Dec 16, 2010

i recently downloaded wubi and attempted to install ubuntu. everything went smoothly and the first time i tried to boot up ubuntu, the purple desktop background came up and ubuntu finished its installation. then i had to select which operating system to use (XP or newly Ubuntu), and when i choose ubuntu i get the following message:

"Choose an operating system to boot from:[XP is the only OS listed]

Use the up and down keys to select which entry is highlighted. Press enter to boot the selected OS. 'e' to edit the commands before booting or 'c' for a command-line. ESC to return to previous menu."after i select XP, the error message "error: unkown command 'drivemap'." displays briefly in the upper left hand corner. I am currently running Windows XP.

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Ubuntu :: Error Unkown Filesystem Grub Rescue?

Dec 3, 2010

My sister got a Dell laptop installed Ubuntu 9.10Her 3 year old son got to the laptop and i have no idea how hey did this.He accidentally deleted the hole hard drive + file system ext4.Can com one tel me how the blip i can recover the lost data.Now if i do this sudo fdisk -lu i get this

Device boot Start END Blocks ID System
/dev/sda1 * 19131 19458 2620416 C w95 FAT32 (LBA)
/dev/sda2 18707 19457 6032407+ 5 Extended


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General :: Unkown Filesystem. Grub Rescue?

Dec 1, 2010

My laptop was running Vista just fine. I had and wanted to install Linux and chose Ubuntu. I installed it to a USB and booted using this USB. It installed just fine and ran fine one time as well!When rebooting and wanting to run Windows, I got the diskcheck screen and let it run. Windows booted fine afterwards.On my next reboot all I got and still only get is the following

error: unkown filesystem.
grub rescue>


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Ubuntu Installation :: Doesn't Show Up In GRUB

Jan 14, 2011

I installed it from a cd and it wouldn't work. (froze in the process). I then tried to install it through windows wubi and that didn't work (wouldnt boot) since I was unaware it was a known issue and thought it was me doing something wrong I uninstalled it,reformatted the hard drive and tried to install via a cd again this time it fully iinstalled but when I rebooted it tells me unable to mount drives and a shell will be shown.

in the end I have no files on ubuntu so I would like to clean up all reminance of the previous installs and be able to use a working install. since I have been installing and reistalling for the better part of 8 hours.Yexcuse the post sloppiness using my phone)

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Ubuntu Installation :: 10.04 Menu Option Does Not Show Up In Grub

Jun 10, 2010

I've had two students report a problem whereby Ubuntu does not show up as a menu option in Grub. Both systems used Wubi installations of Ubuntu 10.04 Desktop for x86 on Windows XP. In both cases, Ubuntu completed the installation process. Upon reboot, we have the options to choose between Windows XP and Ubuntu. However, once we enter into Grub, only the Windows XP option shows.

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Ubuntu Installation :: Grub Doesn't Show Up At Startup

May 7, 2011

I have a dual-boot setup with Windows 7 and Ubuntu 11.04. Each OS is installed on a separate partition of one hard drive. I read that installing Windows after installing Ubuntu wipes out Grub, so I made sure to install Windows first. Unfortunately, after completing the Ubuntu install and rebooting, I see no sign of the Grub menu. I followed several sets of instructions for reinstalling Grub, and after running grub-update, it appears that Windows 7 was added to Grub, and after examining the grub.cfg file, it appeared that that was the case. Despite appearing to be installed perfectly once inside Ubuntu, Grub doesn't show anything at startup. No matter what I try, I can't seem to make Grub appear, and now I can't get back to Windows 7. Am I missing something, or should I try a different bootloader?

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Ubuntu Installation :: New Kernel Updates Don't Show Up In GRUB Or Boot

Mar 9, 2010

I'm currently running Karmic 9.10 in dual boot with Windows 2000. My computer has automatically updated and installed kernels 2.6.31-17, -19 and -20 (They show up in Synaptic as installed).

However, the newest kernel choice in my GRUB menu is 2.6.31-16-generic (followed by -15 and -14). These all start without any errors.

Question: Why haven't the newer updates shown up in GRUB for booting purposes?

Could it be a question that I didn't answer correctly some time back about accepting or not accepting an update or change in GRUB?

How can this be changed? The new kernels do not show up in Start-Up Manager either.

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Fedora Installation :: F15 Doesn't Show Up In Grub?

Jun 4, 2011

I just upgraded to F15 from 14 and F15 doesn't show up in GRUB only 2 kernels of F14. I can't obviously boot into either one, so now I am stuck with nothing.

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Ubuntu Installation :: Booting And APT Upgrade Of Grub?

Jan 17, 2010

OKI am loading 9.10 (K or U, makes no difference). This installs 2-6-31.14. Eventually I am unable to dissuade APT from upgrading to Grub 1.97 beta4. One of two things can happen.

1) I am upgraded to a later kernel at the same time (currently 2-6-31.1. This singularly fails to work, in that I end up with no working kernel at all and I can only run memtest (or Windows 7, which is about as much use): good for the soul no doubt, but frustrating. "Solution": tar up the whole of /boot beforehand and then reinstate it afterwards. I am back to square 1, but at least a working square 1.

2) I persuade APT not to upgrade the kernel.I then get 14 (and 14 recovery) in my grub.cfg, but boot fails dramatically, and it becomes apparent that it has forgotten about /dev/sda, my hard disk.Further investigation shows that I have a new initrd.img in /boot, which doesn't work properly; reinstate the backup version, and all is well.What is going on? Is it just me? How come there aren't crowds of protesting peasants with pitchforks outside Canonical Towers?

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Ubuntu Installation :: No Grub, After Post - Not Booting?

Oct 26, 2010

Both on a 10.04 and a newly installed 10.10:After BIOS post, I get no grub and just a blinking index in the upper left. I've left it for hours, never boots.How can I resolve this without getting any Grub boot options?

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Ubuntu Installation :: 10.10 - No Grub At Booting Page

Dec 25, 2010

When I try to install Ubuntu OS everything works well to the last step. At last step it ask me for my user name while it is installing the OS at background. Then it says "ready" but nothing change. I can move mouse over the screen but there is nothing to push like "finish installation button" or something like that. I wait for 2 hours and nothing changed. There is no error code. Then I decide to reset Pc and try to see if it installed grub or not, but there is no grub at booting page. I started to OS installation again and same problem occur for 6 trials. I have intel i3 proccessor with graph card and gigabyte h57m-usb3 motherboard. OS: Ubuntu 10.10.

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Ubuntu Installation :: Booting USB Drive From Grub?

May 2, 2011

I have a laptop with a dead CD drive. I want to install Ubuntu 11.04 on it however it can not boot a USB drive. The current os is trashed, but grub is still okay. Is there any way to load the ubuntu CD's contents off of a flash drive and boot it from the grub console at boot?

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Ubuntu Installation :: Booting Into Karmic Using The Older Grub?

Feb 3, 2010

i had a system running ubuntu karmic and grub2. Last day i installed fedora 12 on another partition and also installed the older version of grub that came along with it(because i was more used to it). The current status is:1. can boot into fedora, cannot boot into ubuntu.

2. can boot into fedora, chroot into the ubuntu partition
3. no data loss

However, i just can`t boot into ubuntu from the older version of grub which i have presently. Question is: How do i boot into karmic from the older version of grub? do take some time off and reply of you know the answer!

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Ubuntu Installation :: Add Windows 7 To Grub For Triple Booting?

Feb 11, 2010

I will like to triple boot Ubuntu, XP and Windows 7, but I already had Ubuntu and XP running on separate HDDs, Ubuntu was installed first, then I installed XP on a separate HDD (with the Ubuntu HDD disconnected), now I did the same for Windows 7, I disconnected all other HDDs (Ubuntu, XP and Data)and installed windows 7 on a separate HDD.When I connected everything back(Ubuntu HDD, XP, Data HDDs and Windows 7 HDD, Windows 7 does not appear on grub boot menu and now Windows 7 does not boot up by it self.

Is there a way to simply add Windows 7 to Grub so I can have all 3 OS's on grub menu?Can grub search HDDs to look for OSs to add to the menu?Funny thing is the XP entry on grub appeared by it self, I've never edited grub to add XP on the booting menu, I was booting directly to XP by going into the BIOS and selecting the XP HDD as my booting drive instead of Ubuntu HDD, somehow XP was added to the grub booting menu.

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Ubuntu Installation :: Upgraded-Missing Grub-not Booting

Jun 8, 2010

Had v9.x installed alongside Windows XP SP3 install. Have not used it that much since install.
Got the bug to upgrade to v10.

Went through the upgrade process, everything seemed fine.

At the end of the install process asked which dev to install GRUB onto - I selected only one drive, the wrong one of course, and the reboot failed.

Boots up with:

Have LiveCD running now to post. Ran Info_boot Script.sh - results below.

Will reinstalling v10 from Live CD fix this? Will this use Wubi or just go through normal install process? Or is there an easier fix to install GRUB on the correct drive to get the dual boot choice of Windows XP and Ubuntu back.

Naturally I need to get back to Windows ASAP - it's the net gateway and print server for my home/office setup.

Boot Info Summary:

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Ubuntu Installation :: Only Booting Windows7 - Configure Grub

Nov 21, 2010

My system set-up is one HDD that is partitioned having two Windows7 bootable partitions, and Ubuntu. I originally had Windows7 and Ubuntu, but I wanted to have another Windows7 OS to keep clean for gaming. Of course, when installing Windows7 it wiped out Grub2. I've reinstalled Grub2, but now I'm having a problem in that when I choose Windows7 in the Grub menu, it directs me to the windows boot manager to choose one of my Windows7 partitions to boot. I'd like to configure Grub so I can choose which Windows7 installation I'd like to boot from there. I've tried added custom scripts to point grub directly at the partition where each installation is located, but it always directs me to the windows boot manager. How can I bypass that?

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Ubuntu Installation :: Grub Only Loads When Booting From SD Card / Fix This?

Jan 21, 2011

Ive installed Ubuntu 10.10 from a SD card (yes my laptop supports booting from SD) and it works fine except the grub does not load. Although I know there are many threads about this Im not sure which one to use because my problem is quite strange.
Im not pretending I understand how grub works but I find it strange:
When I boot from Hard Drive, it boots into Windows without loading grub (I installed ubuntu to an empty partition along the windows on the same drive), however, when I force booting from the SD card, I get the grub window with all the options as expected - ubuntu, mem check, windows 7. Now Im not sure if its grub loading from this SD card (containing ubuntu) or the card somehow runs the grub that is on the hard drive.

My guess is that the partition containg windows (sda0) is flagged as boot and thus the system doesnt even look after grub when booting, however, when theres the SD card it somehow forces booting the ubuntu partition (sda6).

Any idea what I should do? I can boot into Ubuntu, I can access grub etc. I just cant make it load without having the SD card in my PC

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Ubuntu Installation :: Booting Into Grub With No Menu After Upgrade

May 3, 2011

I had Ubuntu 10 running on vmware machine. It ran fine. I upgraded to version 11, but now when the machine restarts I do not get any menu, I just get his:
GNU BRUB version 1.98-1ubunutu7
Minimal BASH-like line editing is supported.

And that is it! No menu, no list of options, nothing. If I type "ls" I get:
(hd0) (hd0,5) (hd0,1) (fd0)

I can enter "root (hd0,1)" which gives me:
(hd0,1): Filesystem is ext2.

Then typing "kernel /boot/vm" and pressing tab shows:
vmlinuz-2.6.32-27-generic vmcoreinfo-2.6.32-27-generic vmlinuz-2.6.35-28-generic vmcoreinfo-2.6.35-28-generic vmlinuz-2.6.38-8-generic vmlinuz-2.6.38-8-generic

There is no /boot/grub/menu.lst but there is /boot/grub/grub.cfg which seems fine as far as I can tell. Did I somehow end up with an older grub which is looking for menu.lst? I have other machines running Ubuntu and if I boot into them I seem to get a GRUB4DOS etc. slightly different version. The grub version shown above is 1.98 but I read somewhere Ubuntu uses version 2? Actually I found another post which suggests that this is the correct grub version for Ubuntu 11. How can I tell what menu file grub is looking for where it is looking and why its not finding or using it? It should work...

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Fedora Installation :: F14 And 15 Booting To Grub?

Aug 27, 2011

I have tried and failed to install F14 and 15 on my system for a while now and I have been running Ubuntu in the mean time as it installs and runs fine as does Mint, and Suze.

My Pc is getting a little old now but is still very capable, however the Primary master Sata port seems to have a fault on it so I don't use that anymore as it ends up corrupting my hard drive after a few weeks.

I am running one hard disk on the secondary sata port which shows up as the primary slave in Bios.
When I install F14 or 15 all goes well till I restart then it boots to Grub with no errors.

I have tried assigning root in grub and it doesn't seem to think any hard disk exists from what I have tried, what am I missing?

Just to confirm I am running one hard disk on the second SATA port, Fedora detected it on install as sda1, and the rest of the linux partition as sda2.

I have tried this multiple times and the grub was installed to the MBR

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Ubuntu Installation :: Keeps Booting To Command Line?

Sep 21, 2010

I am running 64bit 10.04 (Lucid) with Kernel and I keep finding that Ubuntu keeps booting to command line. I have found that by typing "startx" I am able to load up the GUI. Is there a way I can get it to start like this every time?I used to get the GUI login screen but I don't anymore. Is there a way I can change this?

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Ubuntu Installation :: Windows 7 Install On 2nd Hard Drive Not Seen By Grub In Maverick / Show That?

Jan 23, 2011

I've just installed a second hard drive in my laptop with windows 7 on one drive and Ubuntu on the other. I selected the side-by-side install in the Ubuntu install and let Ubuntu do the rest. Unfortunately Grub isn't seeing the windows install even after reconfiguring grub. However, the windows 7 drive is visible in Ubuntu and all the windows files are there intact.

Does anyone know how I can make grub see Windows 7 so I can boot into it?

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Ubuntu Installation :: Properly Multi-booting Grub With Windows First

Mar 5, 2010

I wanted windows to appear first in my grub2 menu so I renamed the 30_os_probe file(or whatever it felename is) to 09_os_probe so that it comes before the 10 linux file, problem is whenever these files get updated the updater is unable to find the 30_os_probe file since I renamed it and recreates it... leaving me with two versions (09 and 30) with 09 being of course outdated.

The updater also fails to run update-grub and instead attempts to update grub.cfg manually... and fails. I had to manually do a sudo update-grub.

Is there any way to fix this so its all updated automatically while leaving windows the top choice? No manual intervention required beyond clicking "install updates"?

Also, is it possible to JUST have the Windows and Ubuntu choices, no Ubuntu recovery, memtest, alternative(older) kernels for Ubuntu, etc in the grub menu?

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Ubuntu Installation :: Multi Booting On Two Drives - How To Edit Grub

Apr 7, 2010

I have two hard drives windows 7 is on one of them and Ubuntu 9.10 is on the other. Both drives are 320GB, but different models of drives by Seagate. Both drives are detected by the BIOS and both drives are detected by Windows, but only one drive is detected by Ubuntu during the installation process. I had to literally disconnect the Windows drive to get Ubuntu to recognize the drive I wanted it on. Now that Ubuntu is completely installed and a new Kernel has been downloaded and installed it finally recognizes both drives as existing.

There is some kind of problem with the Installer and the original Kernel that kept it from seeing the second drive. I will literally have to manually edit Grub to get it to boot the Windows drive. How do I edit Grub? and what kind of Grub command would do the trick? I searched for "multi-boot" and literally read them all, there was one thread about multi-boot on multi-drives, but it did not fit because the Installer recognized both drives with that thread. I have to change the boot order in the BIOS to get the drive to boot that I want currently.

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Ubuntu Installation :: Booting With Grub With Multiple Hard Drives?

Jan 23, 2011

I have 3 hard drives installed to my system, 1TB, 2TB and 500GB drives with the following configuration:

ledi@ledi-ubuntu:~$ sudo parted /dev/sda print
Model: ATA SAMSUNG HD103UJ (scsi)
Disk /dev/sda: 1000GB
Sector size (logical/physical): 512B/512B
Partition Table: msdos


I can boot to the Ubuntu installation in the 2TB drive. My problem reversed when I reinstalled grub to one of the Ubuntu installations in the 1TB drive. I can boot to any of the OS's in the 1TB drive, but not to the Ubuntu in the 2TB drive. The error message is the same as above. I have no idea what am I doing wrong and I would be really grateful for any assistance.

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Ubuntu Installation :: System Not Booting Showing GNU-GRUB Version1.98-1

Feb 4, 2011

boot my system its showing GNU-GRUB version1.98-1 ubuntu7

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Ubuntu Installation :: Dell INSPIRON Booting With GRUB Not Able To Get XP Running?

Aug 5, 2011

I have got Windows XP Pro installed in my Laptop. It had 2 partitions. In C drive i have got Windows XP.Installed UBUNTU in E Drive. It did partiion E drive futher to install it. Had the GRUB RESCUE prompt initially. But after running the following got into the next problem.

Grub reinstall fix:
Boot Ubuntu live CD. Then run
sudo mount /dev/sdf5 /mnt


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Fedora Installation :: Booting Without Putting Grub In The MBR?

Jan 17, 2011

I am shortly getting a new computer, It will arrive with Windows 7 on one disk and will have a second disk, on which I will install Fedora. In the past, when I've set up a dual boot system, I always used the standard configuration with the first part of grub put in the MBR. But this time I would like to put grub entirely in the Linux disk and then use Windows 7's boot loader to boot. I set up another computer that way where the disk originally came with Vista. But in that case, I set it up the standard way and then changed it afterwards to use the Vista boot loader.

This time, I want to set it up when installing Linux so grub is entirely on the second Linux disk. So until I manage to figure out how to get the Windows boot loader to do the job, I need a separate way to boot Linux, say from a CD with grub on it. But that CD should have the appropriate grub configuration on it. The easiest way I know to create such a CD is from Fedora, but there is the problem that I first need to get into Fedora to do it. I can think of several ways to approach that problem, i.e., using the installation disc in rescue mode or using some raw grub booter created from my old system. But I would like to keep things as simple and direct as possible, since otherwise I'm sure there will be false starts and a lot of fiddling.

So could someone direct me to some simple instructions to do what I want as quickly as possible. In particular, are there any options to do it in the installation process?

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Fedora Installation :: Triple Booting Using Grub 2

Jun 11, 2011

I'm a former Ubuntu user who jumped ship to Linux Mint. I currently am dual booting Windows 7 and Linux Mint 11 using Grub 2. Is there a way to install Fedora last? Much of the reading I have done suggests Fedora needs to be installed before Mint/Ubuntu. By the way, I have searched the forums and it has been suggested to wipe out Ubuntu, install Fedora and then re-install Ubuntu. I would much rather shrink the Windows partition and install Fedora before Mint and update Grub.

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Ubuntu Installation :: Partitions Dual Booting And Got Grub Boot Errors?

Mar 29, 2010

i'm trying to install 98se to a 110gb partition so i can dual boot with ubuntu 10 for 98 and 100 for ubuntu after the resize. when i tried making multiple partitions manually for ubutnu putting it on separate partitions i got grub boot errors. the problem i am having every time i try to install 98 it forces me to scandisk it then i have to hit space bar to fix every error i thinks it finds wich is impossible to press it 2 million times. now if I format in a non 98 format and tell it to format in lba it keeps asking for a boot disc, i burned one off but, still kept asking for it. if i do it in non lba, it only saw 2 gigs in 98 and when i went to install ubuntu it was a giant hard drive no partitions. i did try making 3 fat 32s 1 for 98 and then swap and linux partition but, the i got grub errors 17 and 18.

the problem is that bios a cap of 130gb for each drive or in this case partition. it's 320gb WD blue Scorpio. the short i want to dual boot 98se and ubuntu 9.04 with 2 fat32 partitions for storage 110 +100 + 80 = 320 also some visuals.

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