Software :: Unable To Boot Into GRUB Loader: GRUB Command Shell Boots Up?
Sep 2, 2009
A failed upgrade, from disk images, of Fedora 10 to 11 resulted in no GRUB bootloader main menu appearing on bootup (no WIN, no LINUX choices from which to boot). I am booted directly into the GRUB command shell...so, no WIN, no LINUX, nothing. And my understanding of GRUB shell commands is very low.I have 2 hard disks, WIN on the first, LINUX on the second. I believe GRUB Bootloader is on the first disk.Sadly, I have no external install media.An old grub.conf hardcopy indicates that root =/dev/sdb2, root (hd1,0), kernel /vmlinuz....olderversion...(relative to /boot),initrd /initrd...olderversion... (relative to boot). and WINDOWS on (hd0,1), with chainloader +1
I need to somehow get past this grub shell, and re-install/re-instate the grub bootloader, so it can boot normally.What grub command(s) must I use? I've played around with the commands, but with no success.I worry that if I can't resolve this, the whole machine may be useless.
I having a problem getting my grub loader to see one of my hard drives. I added a drive, and my grub loader lost track of where everything was. I couldn't get my old linux (Red Hat 9) so I installed SuSe on my new hard drive. But I need my be able to boot from my old hard drive because it has apps that only run on the earlier version. From /proc/partitions the old hard drive is sdd
major minor #blocks name 8 0 976762584 sda 8 1 2104483 sda1 8 2 20972857 sda2
I have a laptop with windows vista installed on the internal hardrive.Last March I installed wanted to start to use linux so I brought a separate external hardrive partitioned it to enable media storage on one section and installed ubuntu on the other half. It works fine and so does the windows vista on my internal hardrive, however I have to have the hardrive plugged in to boot.Until now this hasnt bothered me, however I've recently started to take my laptop into university and cannot switch it off unless I have the external hardrive with me as I cannot switch it on without it.With it plugged in it loads up GRUB and then gives me the option to load either Ubuntu or windows vista, however if it is not plugged in when I power up it says GRUB loader failed.It also occured to me that if for some reason my external hardrive fails in the future I wont be able to use my laptop anymore.Has the installation of ubuntu (and GRUB) altered the MBR? Is there some way I can edit the settings so that I can load windows vista without the hardrive plugged in, and then if it is plugged in I get the choice which one to load?
I started another thread about this to get help booting into openSUSE after Fedora rewrote my bootloader and deleted all other entries. I managed to fix it but I never did find out why the following commands caused my system to boot to the grub shell instead of the grub menu.
Code: grub root (hd0,3) setup (hd0) quit reboot
Can anyone explain to me why these commands caused my system to boot directly to a grub shell? It's as if there were no /boot/grub/menu.lst files for it to use, but after I got everything back to normal, the files were still there.
If it helps, this is how the drive was setup before and now, except Fedora was on /dev/sda4 and has since been deleted.
Code: Device Boot Start End Blocks Id System /dev/sda1 1 262 2104483+ 82 Linux swap / Solaris /dev/sda2 263 13316 104856255 83 Linux /dev/sda3 * 13317 14621 10482412+ 83 Linux
I'd like to say I'm very impressed with Fedora 11. I'm a long time Linux user and I've tried many distros. But, I usually keep only the best on my laptop. For a long time that was Ubuntu but, I think Fedora 11 has made some key improvements over Ubuntu and I'm eager to switch. The problem is: I haven't been able to run Fedora as anything other than on the Live CD. Everything works perfectly and it installs but, when I reboot, Grub begins. Instead of booting, however, Grub drops into its minimal shell and gives me a command line.
I've tried installing it a number of ways now and have read much about the problems with Ext4 on Grub and took special care to see that Grub has its own, separate, /boot ext3 partition. Even then, no luck. My hardware should work fine. I've got an HP DV-5 with 4GB RAM, AMD Turion 64-bit dual-core @ 2 Ghz, and an IDE 250GB hard drive. I'm working with the 64-bit Fedora 11 Live disc with KDE as the Gui.
I used the Wubi installer to install the latest version (available from the website) on my second physical HDD. I rebooted my machine and used the Windows 7 bootloader to launch Ubuntu and it launched a GUI install. I wasn't sure how long it was going to take, so I left for about a half hour and when I returned I was back to my Windows 7 logon screen. Naturally, I assumed the install was a success and I rebooted my machine. When I boot again I get the Windows bootloader and I see my options for Windows 7 (which works properly) or Ubuntu. However, if I select Ubuntu I am brought to a command-line and there is an output at the top of the screen stating "Grub bootloader." At this point do I need to type anything to launch the GUI (I'm assuming Gnome) from this? How should I proceed from this point, reinstall?
I'm running Debian testing and after a recent software update, suddenly I can no longer boot into my single Linux kernel image anymore. I did look at the software update before I did it and I don't believe that it removed any software packages. When I try to boot into my linux 2.6.26-1-amd64 image, I get the following message from grub:"error: unknown command `initrd'"..The same error appears if I try to boot into single-user mode. I have a Windows XP partition on the same hard disk and I am still able to boot into that from grub. I've searched the net and haven't really found my same problem replicated anywhere. I would imagine that the problem is just that somehow the initrd package got removed in my last software update, but again I don't recall seeing any software that the update planned to remove.
Any thoughts on how I would go about fixing this problem? Since I'm unable to get into Linux at all, I imagine I'll have to use a LiveCD to get in and fix the problem, but I don't know where to begin looking.
I wanted to install Debian 8.0 on my second hdd in my UEFI machine, but when I choose UEFI boot from USB, GRUB command line appears, and I cannot boot up the setup. I used Rufus to create the bootable USB stick, using the amd64 kde CD image. I tried several images and I deleted the Linux and Efi partitions from previous installation of Ubuntu . Also I deleted GRUB from the Windows 7 Efi partition.
In the UEFI setup fast boot and secure boot are disabled, and I don't seem to have the option to boot in legacy mode, if I choose the simple USB boot option (without "UEFI" in front) I get "please insert correct boot media, and press any key or reboot". I couldn't manually boot from GRUB command line, because it is showing that all the drives are empty, and if I type "boot" I get "please load the kernel first".
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.
The ability to manually boot using the Grub command-line constitutes a big security risk in Linux, IMO.Any OS can be booted in this manner from a PXE-LAN, USB, or CD/DVD drive, circumventing BIOS-imposed boot restrictions. (Once a foreign OS is booted, of course, it can be used to access any part of an unencrypted hard drive.) Placing passwords or locking menu items (in the Grub configuration files) does not prevent a user from booting manually using commands entered at the grub command-line.
As it stands now, when presented with the Grub menu (or after bringing up a hidden Grub menu with the "ESC" key), a user only needs to hit "c" to enter the Grub command-line mode to facilitate any type of bootup whatsoever. (They can then enter manually the Grub commands to boot an OS on any device.) This is extremely insecure and allows any passerby to boot the computer with a few keystrokes and a bootable USB drive. How do I configure Grub so that it will require a password in order to enter the command-line mode (and thereby restrict boot options to the menu, which can then be password protected/locked) ?
I tried to install Open Office following a guide in OpenOffice.org but after several attempts debian refused to boot properly. I decided to re-install Debian 5.0. When we came to the installation of the boot loader GRUB refused to be installed. I stopped the installation expecting to go back to the beginning. But now it tries to boot saying:Grub loading stage 1.5.
Grub loading, please wait... Error 15
This is an old Toshiba 3110 with Windows 98SE installed which I have successfully customized and do not want to loose. What can I do to get back into W98SE and then re-install Debian properly?
Every dual boot guide and every dual boot I've set up I've done the same way. Always install Windows first then install Ubuntu. Well, this time Windows didn't let go of the bootloader it seems like. I have kind of an awkward setup for hard drives...32gb SSD /2X250gb raid1 /home 3gb(at beginning of 1tb HDD) swap
The rest of the TB is Windows 7 Home Premium. I installed Windows 7 without problems the installed Ubuntu 10.04 x64 without problems. It asked if I wanted grub to overwrite mbr I said yes. Computer rebooted... Straight into Windows. I downloaded EasyBCD and added grub to Windows boot menu. The option works great, goes straight into grub. Grub even has Windows listed.
Why is my computer using Windows boot manager and how do I switch it to grub?
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?
I got the grub loader to work finally. The problem is it does not always display at initial boot or a restart. I have seen the selection menu but it doesn't always appear. I have it set to point to windows so that my wife can hit enter when she gets a blank screen.
What I like is to install Fedora13,Win7,WinXp, and Musix. One HD 1.5TB Ilike on that is win7 and Fedora13,the other one with 400GB WinXP and Musix. What should I do so I can setup on GRUB. How can I set up like that.
As I attempted to uninstall an MP3 decoder through the command line, I may have also uninstalled the boot loader to Fedora 13. I entered the command to uninstall the program as su - , left for a second, and upon my return I noticed a lot of things were being uninstalled. After canceling the process I turned of my computer and now when I try to start it, my computer freezes after the Fedora icon appears on the blue screen. After looking through the online manuals, I think I uninstalled the GRUB boot loader. I've been trying to reinstall it through the image on the DVD, but it keeps getting stuck on the blue screen. I use a Toshiba satellite with no partitions.
i've a little problem with the grub loader. I've two OS in my laptot: Ubuntu 9.10 Karmic Koala 64bit and Windows 7 64bit. But i can't boot Windows 7 from the grub loader. The grub still load the /dev/sda1 partition that is the recovery partition of the laptot, while windows 7 is in the partition /dev/sda6. I tried to modify the path in the grub.cfg, but still load the wrong partition, how i can do?
I was playing with the Ubuntu side of my laptop, and I was looking a tweaks for it. I saw a program called BURG, Juts the pretty themed version of Grub I guess. Any who. I installed it, Terminal reported no problems. I decided to restart because of other changes I made.My laptop is an Acer Aspire D255, Single Core atom N450, with a Hitachi HTS545012B9A300 HDD, There are two operating systems. Ubuntu 10.10 (personally my favorite.) and Windows Seven Home Premuim. What I'd like to do is save the Windows Side if I can. Or both. But Mainly windows for my iTunes.
I got a new Sony Vaio Z and try to install Ubuntu on it. The laptop has got two 64 GB SSDs setup as a RAID 0 array. [URL]. As the configuration is done in the BIOS, I assume it's hardware RAID. [URL]. The problem is that - no matter what I try - the installers are unable to write the GRUB loader on the hard disk. I tried both, standard and alternate installer (9.10 / 64 bit), and both failed at that point. Not a really error message, it just says "cannot write GRUB boot loader".
I also tried two different scenarios: - Ubuntu beside Windows (shrinked the partition for that) - Ubuntu on the empty RAID