Loading
Boot with GRUB
Especially useful for multiboot, partitioned systems, GRUB offers flexibility and convenience for startup.
As is typical of GNU software, GRUB is rich with capabilities beyond what are described here. Some of these include:
Remapping disks and partition hiding, so you can even run multiple versions of DOS/Windows, on other than the first hard disk.
Network booting with BOOTP and DHCP protocols, to support multiboot schemes across a network and diskless operation.
Keyboard remapping, disk geometry access, memory reading, I/O port and processor probes, password protection, decompression support, etc.
See the GNU information manual for more information on these topics. GRUB is under active development, and even more features are planned for future releases.
In this brave GNU world, with vast acreage of cheap hard disk and a glut of great free OSes available, you really need a flexible and user-friendly boot loader to manage them all. Grab GRUB and give it a go.
______________________
Webcast
How to Build an Optimal Hadoop Cluster to Store and Maintain Unlimited Amounts of Data Using Microservers
Realizing the promise of Apache® Hadoop® requires the effective deployment of compute, memory, storage and networking to achieve optimal results. With its flexibility and multitude of options, it is easy to over or under provision the server infrastructure, resulting in poor performance and high TCO. Join us for an in depth, technical discussion with industry experts from leading Hadoop and server companies who will provide insights into the key considerations for designing and deploying an optimal Hadoop cluster.
Sponsored by AMD
White Paper
Red Hat White Paper: Using an Open Source Framework to Catch the Bad Guy
Built-in forensics, incident response, and security with Red Hat Enterprise Linux 6
Every security policy provides guidance and requirements for ensuring adequate protection of information and data, as well as high-level technical and administrative security requirements for a system in a given environment. Traditionally, providing security for a system focuses on the confidentiality of the information on it. However, protecting the data integrity and system and data availability is just as important. For example, when processing United States intelligence information, there are three attributes that require protection: confidentiality, integrity, and availability.
Learn more about catching the bad guy in this free white paper.
Sponsored by DLT Solutions
- Designing Electronics with Linux
- New Products
- Making Linux and Android Get Along (It's Not as Hard as It Sounds)
- Dynamic DNS—an Object Lesson in Problem Solving
- Using Salt Stack and Vagrant for Drupal Development
- Validate an E-Mail Address with PHP, the Right Way
- Tech Tip: Really Simple HTTP Server with Python
- Build a Skype Server for Your Home Phone System
- Why Python?
- A Topic for Discussion - Open Source Feature-Richness?
- Not free anymore
3 hours 57 min ago - Great
7 hours 44 min ago - Reply to comment | Linux Journal
7 hours 52 min ago - Understanding the Linux Kernel
10 hours 7 min ago - General
12 hours 37 min ago - Kernel Problem
22 hours 39 min ago - BASH script to log IPs on public web server
1 day 3 hours ago - DynDNS
1 day 6 hours ago - Reply to comment | Linux Journal
1 day 7 hours ago - All the articles you talked
1 day 9 hours ago
Enter to Win an Adafruit Pi Cobbler Breakout Kit for Raspberry Pi
It's Raspberry Pi month at Linux Journal. Each week in May, Adafruit will be giving away a Pi-related prize to a lucky, randomly drawn LJ reader. Winners will be announced weekly.
Fill out the fields below to enter to win this week's prize-- a Pi Cobbler Breakout Kit for Raspberry Pi.
Congratulations to our winners so far:
- 5-8-13, Pi Starter Pack: Jack Davis
- 5-15-13, Pi Model B 512MB RAM: Patrick Dunn
- 5-21-13, Prototyping Pi Plate Kit: Philip Kirby
- Next winner announced on 5-27-13!
Free Webinar: Hadoop
How to Build an Optimal Hadoop Cluster to Store and Maintain Unlimited Amounts of Data Using Microservers
Realizing the promise of Apache® Hadoop® requires the effective deployment of compute, memory, storage and networking to achieve optimal results. With its flexibility and multitude of options, it is easy to over or under provision the server infrastructure, resulting in poor performance and high TCO. Join us for an in depth, technical discussion with industry experts from leading Hadoop and server companies who will provide insights into the key considerations for designing and deploying an optimal Hadoop cluster.
Some of key questions to be discussed are:
- What is the “typical” Hadoop cluster and what should be installed on the different machine types?
- Why should you consider the typical workload patterns when making your hardware decisions?
- Are all microservers created equal for Hadoop deployments?
- How do I plan for expansion if I require more compute, memory, storage or networking?
Developer Poll
Comments
Booting from CD in GRUB
Hello!
I'm a Linux newbee and installed Suse 9.1 on my machine together with Win2000 and XP. Grub is installed on the harddisc. So far no problem, everything is working fine. But I wanted to update Suse to version 9.3 from CD's. Even I changed the Bios-settings to boot from CD Grub doesn't boot from the CD. I would be really thankfull for a hint.
Greetings
Josef
how to boot to CD with GRUB installed
Problem:
my Windows was in a corruptted state and i have grub installed as the load mgr. it is frustrating as hell that i can't boot my box with a XP install CD because GRUB is always loaded and there is no way that i know to set the root to the CD-ROM. i was looking all over the net for solution on how to boot from XP install CD within GRUB, couldn't find anything.
Here's my solution:
0. put your XP install CD in to your CD-ROM and start your machine
1. go to your BIOS setup. F12 on a Dell box upon system start
2. navigate to boot sequence and press enter
3. disable your hard drive by moving the cursor to hard drive and hitting the space bar.
4. save your changes and exit BIOS setup
5. upon restart, you will see the option to "press any key to boot from CD" flashing by. make sure you press a key before the option goes away and before GRUB is loaded.
6. life is good again.
7. make sure you enable your hard drive in the boot sequence after you fixed whatever problem you are having.
it's a hack but it works. hope this helps.
hey, BTW, working on a Saturday sucks;)
Fargo
Same problem
I also am not able to boot to cd with my xp cd to try to reinstall windows. I have tried that very thing to by disabling the HD and trying to boot to cd. Even with the HD disabled, it still skips the boot to cd even if I push any button and goes to the Grub screen, then it will also load both linux and windows depending on which I select. Is there another solution?
Thanks
same
I have the same problem how did you fix it.
I have same problem. Could y
I have same problem.
Could you please explain how you solved the problem.
Thankyou
Problem solved.
Problem solved.
Wont boot windows cd Grub
How did you solve this problem??
Mark.
Booting with linux
I hav a prblm in booting with linux
first i installed a linux
after i installed windows
after then i lost my linux what should i do.
reply me asap.
Thankyou,
GRUB Query!
Since you have installed Windows after Linux it has owerwritten
your MBR where the 1st stage of GRUB is installed. This is the
reason you are not able to get GRUB menu. Windows is not Multi-boot
compliant.
Solution:
Boot with Linux CD in the Rescue mode(linux rescue).
Change root to /mnt/sysimage (chroot /mnt/sysimage).
Install new GRUB(grub-install /dev/hda).
exit
exit
Bingo! You are done.
If you installed Windows afte
If you installed Windows after _any_ non-Windows installation, then it overwrote that hard drive's MBR for its own purposes. If you have a Grub floppy (as outlined above) or a boot disk for your distribution's kernel (typically made during install or afterwards with the mkbootdisk command) then you should be able to boot to a command line and reinstall grub in the MBR.
If you are unable to get your hands on either of those, try popping in your linux installation's cds; often recent releases will contain recovery methods including ways to reinstall boot loaders (just be sure you don't format the hard disk, as this will lose your saved data).
If even that doesn't work you can always turn to something like the wonder that is the single-CD OS, Knoppix; it just may have a boot loader tucked away in there somewhere .
Re: Boot with GRUB
Hi! Is there a way to install GRUB and create GRUB boot floppy under Windows environment? I had GRUB installed on my
laptop but when I reinstalled Windows XP I lost GRUB and found Win boot loader instead which offers me to boot two Win installations (one corrupted and one fresh). It seems that GRUB was overwritten by a standard Win MBR.
So, I can't boot Linux cause I didn't care to create Linux boot floppy.
Thanks/AlBa
If you can boot from a CD, (w
If you can boot from a CD, (which you probably can), download a rescue iso image from the net of your linux distribution. (I know fedora core has one). Burn the CD image with your winxp. Restart and boot off the cd. The rescue disk should boot a lite linux with your linux partition mounted in /mnt/sysimage. you can
chroot /mnt/sysimageto make it your root. you can then rungrub-install /dev/hda2(your linux partition). you can check what partitions is what withdf. grub-install will tell you if it was a success. you may need to edit your grub.conf to make sure you have all the entries you need to boot all your operating systems. I suppose if you wanted to make a boot floppy you could:grub-install /dev/fd0.Chris
Re: Boot with GRUB
An excellent article. I found the commentary on the operation of the lines of code very helpful and the explicit steps on how to create the floppy so that it will boot were very clear. I wanted to run a linux system from a second hd, keeping it entirely separate from the first (which contains W98). I am quite satisfied to leave the floppy in A:. I haven't done it yet but have high hopes. The only difficulty that I forsee is dealing with the various distributions on cd which all want to write to MBR.
Re: Boot with GRUB
IN ORDER TO REMOVE LINUX FROM MY COMPUTER I DELETE IT DIRECTLY FROM WINDOWS USING >COMPUTER MANAGEMENT> DISK MANAGEMENT> DELETE LOGICAL DRIVES.
AFTER THAT I FACE NO PROBLEM BUT AFTER SOMETINE WHEN I REBOOT MY COMP DUE TO POWER FAILURE , I FACE A PROBLEM ,IT IS NOT BOOTING AND GRUB PROMPT IS COMPING EACH TIME . NOW I WANT TO GO BACK TO MY WINDOWS BOOT. ANYBODY HAVING ANY SOLUTION PLZ MAIL ME AT
Need help
Hi,
I am also having the same problem as you faced whic is described below. Were you able to find the solution? If so, would you please share it with me?
Thanks in advance,
RK
Re: Boot with GRUB
Submitted by Anonymous on Tue, 2004-09-07 23:00.
IN ORDER TO REMOVE LINUX FROM MY COMPUTER I DELETE IT DIRECTLY FROM WINDOWS USING >COMPUTER MANAGEMENT> DISK MANAGEMENT> DELETE LOGICAL DRIVES.
AFTER THAT I FACE NO PROBLEM BUT AFTER SOMETINE WHEN I REBOOT MY COMP DUE TO POWER FAILURE , I FACE A PROBLEM ,IT IS NOT BOOTING AND GRUB PROMPT IS COMPING EACH TIME . NOW I WANT TO GO BACK TO MY WINDOWS BOOT. ANYBODY HAVING ANY SOLUTION PLZ MAIL ME AT
hey guy, try with these.if i
hey guy,
try with these.if it's ok informe me.
try with these commands
grub>rootnoverify
grub>chainloader+1
grub>boot
Same probl.
Hi, I'm having the same problem, I just can't go pass the promp GRUB, I would like to know if u fixed it and how?.
Thanks you for your time,
Cristian
Re: Boot with GRUB
Hi. Try fdisk /mbr from windows. It should rewrite MBR on you /dev/hda and erase grub
Good luck
Re: Boot with GRUB
He's right, you know?!
lol :p
Re: Boot with GRUB
in a command window, just type "fdisk /mbr" to wipe your master boot record and replace the traditional windoze boot loader.
cant boot stuck at grub prompt
Hi,
How do i get to command window. when I start my computer i am prompted grub> and can't get pass to it. if you can help, i appreciate it. thanks
ronak
Re : Stuck at Grub Prompt ???
Just run these set of commands at the grub prompt to load the windows OS.
grub>rootnoverify(hd0,0)
grub>makeactive
grub>chainloader +1
grub>boot
Linux New User
Hello,
I am a new linux user and I was working with my laptop and something happened and now when I reboot the computer I just can get into the GNU GRUB version 0.95.
I dont have any idea how I can reboot my laptop and go into the linux again.
Please I need help.
Thank you
Noxmar
Want to boot virtual drives
I want to put my entire windows partition into a image file, like a virtual drive, and have GRUB boot it, so that I can store it like this
|-------drive layer----------------------------------|
|grub|-----linux stuff-------------------------------|
| |boot|root|etc|usr-------|var----------|opt,etc-|
| | |--windows img| |
well, what dya think?
cant boot stuck at grub prompt
If you have your windows XP setup CD, then boot using the CD, disable the hard drive if you have to (not really necessary). after a lot of hoo ha the windows setup will give u three options and ask you what you want to do.
select "R", for recovery and wait for the Recovery console.
The Recovery Console provides system repair and recovery functionality.
Type EXIT to quit the Recovery Console and restart the computer.
1: C:\WINDOWS
Which Windows Installation would you like to log onto
(To cancel, press ENTER)?
---------------------------------------------------------------------
Go ahead and hit the number 1 on your keyboard
In the command prompt that you get:
Type in: FIXMBR
It may try to scare you with some warnings. but if it says that the mbr is non standard etc etc, then go ahead and reply yes. this shud solve the problem...
problem
hi when i press 1 a blue screen appears telling me registry_error problem
tried reinstalling xp doesnt let me as it rebrings me te error again what may i do
cant boot stuck at grub prompt
FIXMBR solve the problem, THANKS......
i cannot write more than 1 le
i cannot write more than 1 letter/number
i cannot write more than 1 le
Then I would choose the letter c which will give you the grub
command prompt. Then type:
rootnoverify (hd0,0)
makeactive
chainloader +1
boot
should boot your windows
then at the msdos prompt type:
fdisk /MBR
(I don't remember whether it's a forward
or backslash. I haven't used windows in
a few years.)
stuck at GRUB
Hi,
I have a problem. I was trying to install windows NT on my laptop replacing linux which it had before. A part of instalation was done and Installation process asked me to restart the computer but now i am seeing a word GRUB with a blinking cursor and can't boot and can't even type a single charater here. Can Anyone help me? What should i do?
Regards
-S
GRUB - blinking cursor and nothing to type
Did you fix this problem? Because I got it right now and its really frustrating. Any help is appreciated.
When i restart computer, grub
When i restart computer, grub> display,
how can i enter the linux
need to type configmenu cmd each time
hi,
I let windows control the MBR and edit the boot.ini to show a menu to choose WinXP or FedoraCore2 at boot.
When I choose FedoraCore2 it gives me a grub> prompt always. I can correctly boot from there using the root(hd0,4), kernel, initrd commands.
Also instead of typing these commands I can also boot into FC2 by typing :
grub > configfile (hd0,4)/grub/menu.lst
and then choosing the 1st option. But I have to type this each time.
How can I automate so that it boots automatically without having to type the 'configfile' command.
I think that could be the
I think that could be the problem with the MBR. What you could do is reinstall grub within FC2 (grub-install /dev/sda) to the MBR then it should fix the problem.
I think that could be the
I think that could be the problem with the MBR. What you could do is reinstall grub to the MBR then it should fix the problem.
would be intrested in
would be intrested in exactly how you do this, but i have another question..
is it possible to install GRUB first in its own partition before installing anything else? ( eg windows or linux)
and then installing what ever os's you want..
so you have ..... GRUB
windows linux dos bsd
instead of... grub with windows
linux bsd dos
any ideas would be appreciated.
install dual boot linux and windows xp
i would like to know the steps to dual boot linux and windows xp..
i have a win xp in drive d: and would like to insatll linux in drive c: which i will be formatting now
please provide the steps to do insatl linux.. i have redhat linux 7.1 CD wiht me.... kindly send the steps to my email
how to change boot sequence in grub.conf in MS DOS mode
DEAR ALL,
PLS GIVE ME SOME CLARIFICATION ON CHANGING BOOT SEQUNCE OF GRUB LOADER. I.E I LOADED 2 OPERATING SYSTEM. LINUX + XP EVERY TIME BOOTING THROUGH GRUB.
I WANT TO CHANGE THIS BOOT SEQUENCE FROM DOS MODE ITSELF.
WANT TO CHANGE WITHOUT BOOTING IN TO LINUX. WANT TO EDIT GRUB.CONF
IF U ARE HAVING ANY IDEA RELATED TO IT PLS POST IT.
I REALLY THANKS TO ALL.
WITH REGARDS,
RAMACHANDRAN.N