General :: Boot Custom OS Using Grub?
Sep 26, 2010
I know this isn't linux related but it is grub related.
I made my own small "32-bit protected mode" Operating System in Assembly.
The OS works great in qemu however I wanted to test it using real hardware.
I have a seperate HDD with grub installed into /boot/grub
In this folder I have:
Code:
Menu.lst:
Code:
The kernel is only 512 bytes. How can it be to big?!?
The only problem I am having it is says:
Code:
Kernel to big
And the kernel's format is "bin" if that makes any difference.
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Jun 15, 2011
I'm going to try and install fglrx again, however last time it killed my system, giving me a 'display not detected' error on my monitor with no way to reach a non-grapgical tty to edit xorg.conf.Is it possible to create a custom grub entry that will boot Fedora 15 with the Radeon drivers in case fglrx once again trashes my system?
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May 16, 2011
we have an oracle application server on red hat 4.6 upon booting it comes up with error: attempting boot from hard drive (c GRUB)
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Nov 21, 2009
Now that ive finally got XP and Ubuntu on my system, i thought id try to get rid of that DOS looking boot! :s
To explain my situation (probably default) when i start up after bios a black screen appears with a list of options:
1. ubuntu
2. ubuntu recovery
3. xp
4. xp recovery
something like that not sure the exact order or titles...
What i wanna do is make it have a GUI where i select which OS i want.
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Aug 5, 2011
I wonder if it would be possible to create a custom boot menu entry in grub under Ubuntu (11.04), that boots the system into terminal instead of the login screen.
The effect should be something like the root shell in (rescue mode) boot menu entry, one that gives me access to a root shell or a less privileged shell, without the need to select "root shell" explicitly.
If possible, I also would like to customize the shell started by, most preferably by specifying a shell script to run so that I can start something other than bash, like vim.
My intention is to create a "fast" boot mode to give me a usable system within seconds (to take notes, for instance) without needing to start GUI. Therefore, it is preferred that the silent option is turned on.
Note: There is a requirement: that no existing feature of the system is removed. That is to say, the gnome desktop (and Unity) should remain intact, and is only disabled when I choose this mode.
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Nov 9, 2010
I am trying to install GRUB with a custom location for my config file. Is this possible? if so where can I find how to do this? Found nothing by googling except where it should be located and how to install it. P.S. enter/spacing doesn't work
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Dec 20, 2010
Problem: I have installed two Ubuntu servers, 10.04 32-bit and 10.10 64-bit, in a multi-boot environment (also have FDOS and WinXPsp3). The 64-bit will not boot because grub can't find the UUID for the disk with the 64-bit system.
Brief Background: Installed 10.04 LTS two months ago with no problems. 10.04 is in a primary partition on hda with FDOS.
Installed 10.10 (64-bit) in a new primary partition on the same hd. The install seemed to go ok, but the MBR and the fs on the 10.04 were corrupted; could not boot. Restored drive, and rebuilt grub.
Installed 10.10 on separate hd (hdb). In grub step all OS's were recognized so I pointed the grub to hda. Grub failed to boot.
Rebuilt grub from 10.04 on hda. All systems recognized but 10.10 will not boot because it says it cannot locate the UUID specified.
Compared the grub.cfg for both systems, the UUID specified for hdb is the same. Also, when I mount the drive for 10.10 on the 10.04 system the drive UUID is consistent.
I know I must be missing some thing, but I know not what. Have searched and can't find any clues. All other OS's boot ok.
Hardware: AMD64 4GB, 2 internal IDE drives (hda and hdb), 1 internal SATA (hdc WinXP), various USB and Firewire Drives (no bootable systems).
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Nov 1, 2010
I'm trying out puppy linux, as I have an old system, and the new Ubuntus do not work on it.
Anyway,I cannot boot from my hard drive but only from the floppy.I'm just not too keen on always booting from the floppy.
Here is the Menu.ls file:
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Jun 25, 2011
i installed slackware then i unistalled it and installed debian then i decided to go back to slackware but it wont boot because i have the grub boot loder how do i fix this
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Nov 29, 2010
i am trying to change the boot order on the GRUB menu so that the countdown automatically starts on an older kernel. From what i can see all the solutions on the web want me to edit the /boot/grub/menu.lst file. The problem is that i don't have one. Someone also mentioned that if i don't have a menu.lst file then i should look for the grub.conf file. I don't have on of those either. The closest thing in /boot/grub is grub.cfg but that looks nothing like the descriptions i have heard of /boot/grub/menu.lst file
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Jul 8, 2011
I am new to Linux. I have installed RHEL 5.4 on my PC with preloaded Windows XP.
Windows was set as the first boot kernel. So if i do not choose which OS to be loaded it will load Windows by Default.
Today I got an error saying GRub Loading Stage2 read error.
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Jul 3, 2010
I just recently installed a kernel, everything works fine after reboot except. When I use nano -w /boot/grub/grub.conf I get /boot/grub/grub.conf: No such file or directoryIs there something i have to do after installing a new kernel in Gentoo Linux.I can't access my /boot all that appears there is a symlink to /boot How can i see my kernels located in /boot.
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Oct 26, 2009
The stock F11 kernel is very buggy on my system, so I built a new one. But I can't install it. My Kernel does not appear in the /boot partition, and does not appear as vmlinuz anywhere.
I followed the instructions on [url]I tried:
And now I can see my kernel listed when I do
What do I do to really install my kernel?
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Mar 23, 2010
I had a dual boot machine with fedora 12 and windows vista and I could use grub boot-loader to switch between two. Few days ago windows got corrupt and I have to reinstall it. I put windows 7 now and as usual it erased grub. So to reinstall I put the fedora 12 installation CD on and followed some usual setup steps. When I got the command line I issued the command "grub-install /dev/sda" (sda not hda because It showed bunch of sda, sda1..) but surprisingly it said grub command not found. I remember doing it before while it worked fine.
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Feb 2, 2010
We have a project we are working on and wanted to know if it is possible using the ubuntu(or any linux) boot disk.
We need the disk to first wipe the hard disk in the notebook, then perform a hardware test(testing processor/hdd/ram/display) then it should reimage the machine and reboot from the HDD.
I am thinking of using grub4dos to boot(and timeout to the HDD)
and partition image to image the HDD... but i do not know any cli software for the others...
For note the disk has to be completely automated as we don't have the headcount to recheck every machine every few minutes.
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Mar 16, 2011
I am new to ubuntu even if I work in IT since 1999 so I am pretty confident I can follow instructions as needed. I need to build a custom install of Ubuntu with minimal software installed (I actually only need VMware View Client and a few more + graphic environment) and I would like to put it all on a USB key and use it to boot any PC so I can fire up my application. Is there a way to do this? Any instructions? I found something about doing an install on USB but nothing about a minimal install (only full).
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Dec 28, 2009
Just spent three whole days barking up the wrong tree, solving Fedora 11 and Fedora 12 boot failures because the correct hypothesis was illogical: installation did not update/modify the initrd.
The first couple of times I installed Fedora 11 on the HighPoint Technologies RocketRaid 2640x4, the installation inserted my "custom" driver module (rr26xx) into the initrd, permanently, so that the system booted off the controller card for which the custom driver was inserted. (I yelled about this success in this thread: [url]
My most recent installs of BOTH F11 and F12 on the RocketRaid failed to properly set up the boot. It turns out that the "rr2640" module I "slipstreamed" into the installation process was *NOT* permanently added to the initrd by anaconda. (F12 gave me "no root device found boot has failed, sleeping forever", on boot; F11 hung also, without such error, I presume, during the init script execution). Because of limited resources and time, I only know for sure the module was missing from the F11 initrd, and am ASSUMING the same was the case with F12.
The only difference between the successful installs and the ones with failed boot is that the successful installs were made on a single-drive (JBOD) mode on the controller; whereas, the failed ones were placed on RAID 5. But, AFAIK, the created logical device for the card is "/dev/sda", in both cases, and the kernel can not distinguish between the two cases (or can it?). Thus, the inconsistency cost me a lot of time, and is still inexplicable to me.
Question: What is the best way to deal with custom drivers, today? There are custom spins, and many tools, like isomaster. Stupid question: Is there a way to modify the initrd inside an installer ISO -- be it for CD/DVD/USBboot drive -- beefing the init RAM disk with whatever modules you'd like, for the boot process (using, say, isomaster)?
And what makes anaconda understand that a module must be added to the initrd ? How can one force anaconda to do so?
How does moving to dracut as the initrd tool affect any/all of the above?
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Aug 4, 2011
I'm trying to install Xubuntu, but I don't have an empty CD and my computer boots only from HDD and CD. I've extracted ISO's contents into my HDD root and have installed a (non-working) Linux and GRUB. So I've tried this boot entry:
root (hd1,msdos1)
linux /casper/vmlinuz
initrd /casper/initrd.lz
boot
But it boots same as the non-working Linux install
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Aug 11, 2010
What is the generic way to create a boot CD for any given Linux distro using grub ? Can anyone give me the exact commands for creating the proper ISO image. From there I know how to burn the ISO image to CD.
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Oct 5, 2010
I have a home-brewed Linux system that I've installed on a USB key. I'm plugging this into a laptop. I can tell from what is going on that it has successfully loaded the kernel and is running the shell script that is specified on the "kernel"he GRUB configuration.But... although I can get output from printk() calls in the kernel just fine, I get nothing from "echo" commands (or any other commands) in the initialization shell script. I can see that the commands are being run,t the output is just disappearing into the void.This is problematic because there are other problems, but I can't get debug output to track those down...Given that printk() output goes to the laptop screen as expected, it seems that GRUB must be sending other output to something other than the console, yet the grub.conf configuration is quite simple:
default=0
timeout=0
title Test
[code]...
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Jul 30, 2011
I have dual boot system - Win7pro, Ubuntu 11.04, installed Win7 1st.I need to boot from CD, but can't get past GRUB... ?
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May 13, 2010
On boot I'm getting
GRUB error 17
on a Windows vista dual boot with mandriva 2010, and I'm using a mandriva LiveCD.
fdisk -l
I see other posts asking for output of grub files in /etc/ none found on my kit, closest I see is
other posts reference this block of cmds to which I need to perserve my dual boot so uncertain how to proceed
How do I make sense of output of fdisk shown above to issue above block of cmds ? Am familiar with unix as a software developer, not sysadmin
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Feb 18, 2011
I am inexperienced in using Linux, and just installed Ubuntu 10.10 on an external hard drive. I didn't want to mess around with re-partitioning my hard drive, which has Windows 7. I figured that I could just run Ubuntu from the external, and if it gave me any problems with Windows, which I unfortunately need for work, I could just unplug it and boot normally. However, GRUB appears to have installed some component to the local hard drive. Whenever I try to boot from the local hard drive, I get this error message:
"error: no such device: 8b84f351-7770-4908-b12f-0cbd31bc3662
grub rescue> "
Another thing is that in the boot menu, only the CD/DVD drive and local hard drive are options, it won't even register the external.
Any suggestions on what may have caused this error? I saw from other posts that GRUB doesn't like multi-drive systems. Also, would it be possible to delete GRUB from my system, then allowing Window's MBR to take over?
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May 13, 2010
I have yet to find any coherent instructions anywhere on earth on this and I am wondering if its ever actually been done before. Assuming I have root partitions on /dev/hda1, /dev/hda2, /dev/hda7. How would I do it? What would I type in the terminal?
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May 19, 2011
I have squeeze and I've created my own custum kernel. Howto configure grub 2 to boot with this custom kernel automaticaly?
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Mar 14, 2010
I'm doing a multiboot system where I need one of the boot options ( using Grub ) to set a number of custom environment variables e.g. "distro".
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Feb 20, 2010
im not very educated in amd processors, but i think that they are all 64-bit processors.
i downloaded the amd ubuntu 9.10 into my computer, and used the usb maker utility in the system menu. i put in in my new pc (it was given to me), and i tell it to boot into the usb.
then i get this. i am posting a pic.
sorry about the sideways pic. i took it with my phone.
anyway, i get the syslinux boot shell script thingy. i have tried lots of things. linux, vmlinuz, lots of other things i found online. so what im wondering is the exact name of the kernel in ubuntu 9.10 amd version.
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Jul 6, 2011
I have a few problems getting a custom service/daemon to auto-start at boot. I'm running ubuntu 11.04 Server amd64 edition. One of the services is a Teamspeak3 server I'm trying to start. I would like it to start up automatically on boot. ts3 already have a script with start/stop commands so all i have done is make a little script for it to get it to run as the correct user.
Code:
#!/bin/sh
### BEGIN INIT INFO
# Provides: ts3
# Required-Start: $all
# Required-Stop: $local_fs $remote_fs $network $syslog $named
# Default-Start: 2 3 4 5
[Code]...
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Jun 16, 2010
I have a little script that lives on a samba server, which I want to be run at boot on all of about a dozen Lubuntu 10.04 desktops? How do I go about doing this? IIRC there's somewhere you can put your own boot scripts, but I forgot where. Mount the samba share with fstab and put a symlink to the script is what I'm thinking. Currently on one machine I have the relevant line in /etc/fstab as
Code:
//192.168.10.8/wpkg /media/wpkg smbfs rw,username=wpkg,password=password 0 0
I'm not sure if that will mount it at boot or if I'm missing anything. (There's nothing private in that share so the password in plaintext doesn't matter).The script itself does things like adds a user if it's not present, installs and updates software - basically anything I want done to all the computers, I just put it in the script.
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Oct 18, 2010
I am using Ubuntu on a memory stick and it is loading Casper.
When loading it ask for the language that you prefer and then loads.
I would like to have be default to english and boot straight into Ubuntu live.
Also posted another issue that I was having to where when it boots, is displays this:
PHP Code:
And hangs for about a minute and them boots.
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