Has anyone ever done a Triple Boot system?

[TNFrank]

We hear all the time about folks doing a Double Boot system with Windows/Linux or OS X and Linux so, has anyone ever done a Triple Boot set up with all Linux? If you had the hard drive space it seems you could cut it up into three partitions and install a different version of Linux on each one so you could boot to one of three different Op Systems. I just wonder how far you could go with something like this. With a 1TB hard drive you could cut it up into 10 partitions of 100GB each and have 10 Op Systems to boot to. Would that be a possible or is there a limit to how many partitions you can create and how many Op Systems you can run?

[oldfred]

I originally had two 160GB drives with Windows on one & Ubuntu on the other. Then I got a new 640GB drive which seems huge. I created two data partitions of 100GB each for Linux & Windows (NTFS) and still had 440GB left. I created a 25GB / (root) partition and left the rest unformatted in the extended partition. Since that was 3 or 4 years ago I have added 25GB / partitions for each new install and only now have gotten to the point where I may need to houseclean out some of the obsolete installs. I have to turn os-prober off on a new install as it takes forever and shows too many installs many which I do not want to normally boot.

The limit is more that it is difficult to keep track of all the systems and which grub is in charge & the default boot. I have to run bootinfoscript regularly or Boot_repair to kept track. And it is best to manually modify grub to only add one simple boot entry per install. You can have an unlimited number of logical partitions.

Also better to have shared data partition, so each system can have the same data without issues of sharing /home and user settings.

If using only Linux, never Windows on a drive, I now suggest gpt partitioning. The main advantage is all partitions are primary and you do not have the primary, extended and logical partition planning issues. But with gpt you have a standard limit of 128 partitions.

This is now very old and uses grub legacy, but shows some of the planning required.
chainboot 145 systems - saikee
http://www.justlinux.com/forum/showt...282#post861282

[TNFrank]

Wow, 145 Op Systems, that's just crazy. I'm currently only running Ubuntu 12.04 and only have a 60GB hard drive. I'd like to run Black Box Linux but don't know if I want to partition and install or just get another computer to install it on. I'm really a "Keep it simple" kind of guy but just thought it'd be cool to have one Op Sys for play, one for work(if I can go back to school and learn some IT/PenTesting stuff, I think that'd be a very cool job to have.) and maybe a third for just messing around with so 3 would probably be my limit. I'm so tempted to partition my drive and cut off maybe 20GB to install BBL but I don't know how hard it'd be to remove it if I ran into problems with not having enough drive space for my main 12.04 install.

[deadflowr]

I multi boot five systems.
Precise
raring
saucy
and kubuntu precise.
They are divided between two hard drives.

And on a third hard drive, I have Windows XP, sitting lonely.(Twas the original hard drive, and because of it's lack of use, is actually in tip-top shape)
I kept XP around for some reason, which now I forget. And will keep it around, because I still forget.

My only problem with multi-booting is giving each one a moment of love, more than I actually do.
So Kubuntu and raring don't get the attentions that saucy or precise might get.
I also tend to keep an empty partition for other distros.
But have become more inclined to run those in a virtual environment, if possible.

[ubfan1]

Or install qemu-kvm and play around with the OSes in a virtual machine.

Create a sparse (smaller until filled) 6G disk image:
qemu-img create myvirt.img -f qcow2 6G
Install an iso into the disk image:
kvm -m 750 -cdrom /usr/local/vm/precise/precise-desktop-i386.iso -boot d precise.img
Run the image (in a window):
kvm -m 750 precise.img

[Bashing-om]

@TNFrank; Hi !

I also presently triple boot (did have 4, ->10.04 is gone now)... as others advise ,,,workie great but a real hassle to keep up with updates and keeping grub satisfied. Customizing grub's boot menu is a big help !
13.04/xfce4/Google-Chrome/elinks/gedit == work
12.04 ubuntu == play and my ole standby
12.04 lubuntu == experimental stuff

My installs on are 2 hard drives with a third hard drive shared as a data disk. I maintain a "disposable" data partition on the primary install disk.

If I keep learning, one of these days I might get smart

[Lars Noodén]

I did triple boot OS X, Ubuntu, OpenBSD for a while. It's doable with rEFIt but there might be another way. At the time, Grub could not find the OS X partition so rEFIt was needed for that.

[Cheesemill]

I've got a triple boot at the moment. Arch, Kali and Saucy.

[Buntu Bunny]

So with a triple boot, Grub doesn't automatically detect all three?

[oldfred]

Grub2's os-prober almost always finds other installs. There are a few exceptions and in some cases with non-standard partitioning or formatting you have to mount the partition so grub includes the extra driver.

I have to turn os-prober off as it finds too much. I manually add the few I want with simplified partition boot entries and can manually edit those to boot another old install if needed. See info on partition boot style grub entries in 40_custom.

How to: Create a Customized GRUB2 Screen that is Maintenance Free.- Cavsfan
https://help.ubuntu.com/community/Ma...tomGrub2Screen
http://ubuntuforums.org/showthread.php?t=2076205