LinuxQuestions.org
LinuxAnswers - the LQ Linux tutorial section.
Go Back   LinuxQuestions.org > Forums > Linux Forums > Linux - Software
User Name
Password
Linux - Software This forum is for Software issues.
Having a problem installing a new program? Want to know which application is best for the job? Post your question in this forum.

Notices



Reply
 
Search this Thread
Old 04-14-2004, 12:29 AM   #1
SnowSurfAir
Member
 
Registered: Mar 2003
Distribution: Redhat 9
Posts: 459

Rep: Reputation: 30
Different OSes


Hey I have a PH 9 box and I want to experiment around with other distros, what would be the best way other than partitioning the rh 9 hd? Like should I get another HD? Or what?
 
Old 04-14-2004, 01:57 AM   #2
hw-tph
Senior Member
 
Registered: Sep 2003
Location: Sweden
Distribution: Debian
Posts: 3,032

Rep: Reputation: 57
You can have several different Linux distributions installed at the same time and dual boot like a lot of people do between some Linux distribution and Windows. You may want to opt not to install a bootloader when installing the second distribution though, and instead just update the bootloader configuration of your original distribution.


Håkan
 
Old 04-14-2004, 03:10 AM   #3
American Psycho
Member
 
Registered: Mar 2004
Location: chroot /dev/hda3
Distribution: LFS
Posts: 88

Rep: Reputation: 15
If you have the money and want to you can setup dual harddrives though.
 
Old 04-14-2004, 05:26 AM   #4
motub
Senior Member
 
Registered: Sep 2003
Location: The Netherlands
Distribution: Gentoo (main); SuSE 9.3 (fallback)
Posts: 1,607

Rep: Reputation: 46
Do you want to have all of them available to boot at the same time (multi-boot), or do you want to replace RH with a different distro?

Either is quite possible (I had a multi-boot of 2 versions of Windows and 5 versions of Linux), but multi-booting is more complex, depending on what you hope to accomplish and what files need to be accessible under all distributions.

You can see how I did it in the how-to that I wrote about multi-booting, which should at least give you an idea about one way that it can be done.

If you don't want to repartition the RH drive, you'll need another drive.... if you have no free space, you have no other choice but to acquire some if you aren't going to make some (by repartitioning, which is admittedly a pain to do with a running system).
 
Old 04-16-2004, 08:48 PM   #5
SnowSurfAir
Member
 
Registered: Mar 2003
Distribution: Redhat 9
Posts: 459

Original Poster
Rep: Reputation: 30
well the problem is that I have a mouse combo setup and Red Hat doesnt recognize it in the area where you choose which to boot. It is there ne way to choose which one to boot before I shut down?
 
Old 04-17-2004, 03:37 AM   #6
motub
Senior Member
 
Registered: Sep 2003
Location: The Netherlands
Distribution: Gentoo (main); SuSE 9.3 (fallback)
Posts: 1,607

Rep: Reputation: 46
Sorry, what is a mouse combo? And what does that have to do with your bootloader? And what point in this process have you reached?

You normally choose what OS to boot when you boot the PC, not before you reboot. I can't see what benefits you would get from doing it any other way, even if it was possible, which I don't think it is.

I'm not understanding what problem you're trying to solve in the above post.
 
Old 04-17-2004, 06:32 PM   #7
SnowSurfAir
Member
 
Registered: Mar 2003
Distribution: Redhat 9
Posts: 459

Original Poster
Rep: Reputation: 30
The mouse combo is a keyboard and mouse that go through one USB port. It took me a long while to get it to work yet when I boot RH 9 doesnt recognize until I get to the login, I.E. I cant change which distro to boot.
 
Old 04-17-2004, 07:46 PM   #8
Thymox
Senior Member
 
Registered: Apr 2001
Location: Cornwall, England.
Distribution: Debian + Ubuntu
Posts: 4,345

Rep: Reputation: 57
Ah, yes. RedHat uses GRUB by default as it's boot loader. GRUB does not like USB keyboards. I cannot remember how, or indeed if you can work around this, so my advice would be to change over to LiLo. There should almost definitely be a package on the install discs for LiLo.

<edit>
Oh, and before I forget. If you have some free space on your current harddrive, then go partition it and install your other Linuxen into them. If you don't, and you don't want to re-partition and re-install RedHat, then go get a/some new harddrive(s).

There are two main ways to multi-boot Linux. You can have one bootloader than loads them all, in which case you should not install any other bootloaders from any other distros. This is the more "elegant" solution, but can bring headaches if you constantly chop-and-change (as I do). In order to make this work, you'd need to install your Nth distro (sans bootloader); boot into your favoured distro (RedHat, for instance); mount your new distro's partition; copy over the kernel and initrd files; add them to your current bootloader; reboot.

Another method (and my prefered method) is to install your Nth distro, and install the bootloader to the root partition of the Nth distro, and have an entry in your main bootloader pointing to that partition. That way you technically have multiple bootloaders, but it can save a lot of hassle.

For example, in my setup I am (currently) running Mandrake 9.1, Mandrake 10, SuSE 9 "technology preview" edition and QNX. The partition that Mandy 10 and QNX reside are constantly changing (I am a habitual tester and fiddler of distros). I have Mandy 9.1 installed on hda in it's entirety. Mandrake 10 is installed on /dev/hdb1; SuSE is installed on /dev/hdb2 and QNX is on /dev/hdb3. The entries in my lilo.conf file simply point to the partition, as follows:
Code:
other=/dev/hdb1
        label="hdb1_mandy_10"
When I select that, I am presented with another bootloader, this time from Mandy 10. It is by far less elegant, but it does allow me to chop-and-change my secondary/testing distros with relative ease.
</edit>

Hope this helps.

Last edited by Thymox; 04-17-2004 at 07:57 PM.
 
Old 04-17-2004, 07:55 PM   #9
SnowSurfAir
Member
 
Registered: Mar 2003
Distribution: Redhat 9
Posts: 459

Original Poster
Rep: Reputation: 30
Ok but how hard would that be to do, like what are the chances that I encounter a problem that will take me a long time to fix?
 
Old 04-17-2004, 07:58 PM   #10
Thymox
Senior Member
 
Registered: Apr 2001
Location: Cornwall, England.
Distribution: Debian + Ubuntu
Posts: 4,345

Rep: Reputation: 57
Post a copy of your current grub.conf file and I'll take a look at it. Oh, and could you put it in between [ code ] tags please? It formats it nicely and makes it easier to read off the screen. Thanks.
 
Old 04-17-2004, 11:42 PM   #11
SnowSurfAir
Member
 
Registered: Mar 2003
Distribution: Redhat 9
Posts: 459

Original Poster
Rep: Reputation: 30
well here it is:
Code:
# grub.conf generated by anaconda
#
# Note that you do not have to rerun grub after making changes to this file
# NOTICE:  You have a /boot partition.  This means that
#          all kernel and initrd paths are relative to /boot/, eg.
#          root (hd0,0)
#          kernel /vmlinuz-version ro root=/dev/hdd2
#          initrd /initrd-version.img
#boot=/dev/hdd
default=0
timeout=10
splashimage=(hd0,0)/grub/splash.xpm.gz
title Newer Red Hat Kernel (2.4.20-18.9)
        root (hd0,0)
        kernel /vmlinuz-2.4.20-18.9 ro root=LABEL=/
        initrd /initrd-2.4.20-18.9.img
title Older Red Hat Kernel (2.4.20-6)
        root (hd0,0)
        kernel /vmlinuz-2.4.20-6 ro root=LABEL=/
        initrd /initrd-2.4.20-6.img
Thanks
 
  


Reply


Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is Off
HTML code is Off


Similar Threads
Thread Thread Starter Forum Replies Last Post
Alien OSes sancho5 Linux - General 3 01-26-2006 10:36 PM
GRUB and Other OSes Kyl3 Suse/Novell 2 08-28-2005 08:37 PM
Three OSes - Is it possible? Jongi Linux - General 9 05-20-2005 01:21 PM
Two HDs, Two OSes notslim Linux - General 7 08-05-2003 02:47 PM
dd mirror command for 2 OSes thecatandmouse Programming 1 08-14-2001 07:06 PM


All times are GMT -5. The time now is 09:50 PM.

Main Menu
My LQ
Write for LQ
LinuxQuestions.org is looking for people interested in writing Editorials, Articles, Reviews, and more. If you'd like to contribute content, let us know.
Main Menu
Syndicate
RSS1  Latest Threads
RSS1  LQ News
Twitter: @linuxquestions
identi.ca: @linuxquestions
Facebook: linuxquestions Google+: linuxquestions
Open Source Consulting | Domain Registration