Force Grub to Reboots into the specified OS

by on March 22, 2006 · 4 comments· LAST UPDATED June 15, 2007

in , ,

Well these days multi-booting is common. GNU GRUB is a multiboot boot-loader software package from the GNU project. I have three operating system installed at work:
* Debian Linux

* FreeBSD 6.0

* Windows XP

As per my requirements, I keep rebooting into different oses. Recently I discovered grub-reboot command. As name suggest it reboots into the specified OS entry in Grub configuration file (menu.lst or grub.conf).

grub-reboot entry [options to grub]


  • entry: Is the entry number in menu.lst / grub.conf file.

For example, if you wish to reboot in FreeBSD then you can type command (3 is entry for FreeBSD):
# grub-reboot 3
This is also useful to force remote computer to reboot in specific OS over ssh session.

Read the man page of grub and grub-reboot for more information.

TwitterFacebookGoogle+PDF versionFound an error/typo on this page? Help us!
1 Joackim January 8, 2008 at 12:26 pm

I have installed fedora 6 on my computer. I would like to Install windows Xp so that i will be dual booting. I am, however unable to boot from Windows disks. i have tried to remove the partitions with Gparted and SystemrescueCD but it will still not boot Windows. what should I do?

2 anthropo January 13, 2008 at 10:29 am

hello, it would be helpfull if you add the information that you must

1) change the traditionnal ‘default 0′ by ‘default saved’
2) force, in the entry you want to choose, savedefault 0 in order to re-initialise the number which is saved

example :


# Windows 98 Boot avec Ghost
title Norton Ghost – Sauvegardes

root (hd0,0)
chainloader +1
savedefault 0

thanks a lot for this post

3 Ama August 26, 2010 at 2:44 pm

Thanks….Please help me I installed linux mint 9 inside windows xp successfully. And restarted now a black screen comes with GRUB< …..What to do I am new to LINUX….?

4 miss jd November 28, 2011 at 6:21 pm

please help me, im constantly getting this error caused by a virus which is 0xc000014c and i am unable to boot my pc no matter what option i choose. then i stumbled upon using grub dos prompt by constantly pressing escape button. the last time that this happened i got a 0xc0000248c error i think and i found a set of codes from the net which i inputted in the grub command line. luckily i was able to boot my laptop back then.. but now, i cant seem to find the codes and i am really helpless and tired. it has been 2 days since this happened. sadly, i don’t have the windows 7 installation disk. so if anyone could give me the grub commands to boot my window, it would really be appreciated and it would be a great help for me.. pleasee help meee

Comments on this FAQ are closed. If you'd like to continue the discussion on this topic, you can do so at our forum.

Previous post:

Next post: