Q. I’m willing to try out Ubuntu Linux but my question is Does Linux grub replace Windows MBR? Can I dual boot between Windows and Linux system?
A. Yes when you install GRUB on first partition, windows MBR get replaced. In most cases GRUB automatically adds an entry for Windows XP / Vista so that you can enjoy dual booting out of box after Ubuntu Linux installation.
In case if you made any mistakes while performing Linux installation you can restore GRUB.
I recommend making a backup of all important data / files before making any changes to MBR / file system or operating system or Ubuntu Linux installation.
You should follow me on twitter here or grab rss feed to keep track of new changes.
Featured Articles:
- 30 Handy Bash Shell Aliases For Linux / Unix / Mac OS X
- Top 30 Nmap Command Examples For Sys/Network Admins
- 25 PHP Security Best Practices For Sys Admins
- 20 Linux System Monitoring Tools Every SysAdmin Should Know
- 20 Linux Server Hardening Security Tips
- Linux: 20 Iptables Examples For New SysAdmins
- Top 20 OpenSSH Server Best Security Practices
- Top 20 Nginx WebServer Best Security Practices
- 20 Examples: Make Sure Unix / Linux Configuration Files Are Free From Syntax Errors
- 15 Greatest Open Source Terminal Applications Of 2012
- My 10 UNIX Command Line Mistakes
- Top 10 Open Source Web-Based Project Management Software
- Top 5 Email Client For Linux, Mac OS X, and Windows Users
- The Novice Guide To Buying A Linux Laptop
{ 3 comments… read them below or add one }
You need to make sure that while installing the Linux on the machine you leave a part of the drive unassigned. Once you are at the installation screen, you will see the unassigned partition where you can install the Linux. During the course of installation Grub will ask you the default OS that is to be booted, you can select the value. Generally, the windows os is not recognized so Grub will read it as “Others” which can be named later on in the /boot/grub/grub.conf file.
Gagan,
Thanks for contributing valuable notes. I appreciate your feedback.
I suppose people have misunderstood, if you install
grub on your *hard disk*, The MBR of the disk
is replaced by grub and not the Windows MBR, if you
install grub on a windows partition then it will
overwrite the windows MBR. Remember
Bios –> Hard Disk (MBR) –> MBR Finds the active partition (0×80) –> Loads the boot loader at sector
0 of the active partition and passes control.