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Ok, I'm still a little confused by this and in the process of sorting out the partitions.
Ok so before I look at installing Ubuntu I already have one distro on my hard drive that works, this currently looks like (from running the ubuntu CD)
/dev/sda1 61MB Boot
/dev/sda2 5109MB Swap Space
/dev/sda3 77174MB (the equivilant of Free space but ubunut recognises it as its own seperate partition) All of these are ext3.
So I would like to install Ubuntu on top of this but I don't know what to do.
At the moment by editing partition it says "do not use this partition" but do I make sda1 also the boot for ubuntu? Do I make a seperate swap and how to I go about making the free space so each distro can have space to access? They dont have to share the free space but obviously that could be handy.
basically what do I need to make it to look like so i can run Ubuntu
Incase you need to know the other version of linux I have on here is BT.
Are you sure /dev/sda2 is used as swap space? It looks far too large for swap, and /dev/sda1 is too small to hold a regular distro (though I've not heard of BT Linux, so if it's a minimal distro it may fit).
I set the sizes myself. Swap space is large but I had a stupidly large hard drive so just made it a big number. The boot is big enough to run BT. BT is a slackware distro
BT is running and runs fine.
I would however like to add Ubuntu on top of this and am not sure how to free up the space or to jsut write over the free space that Ubuntu says should not be used i.e sda3
I tried editing /dev/sda3 making it smaller free space for BT
I then created /dev/sda4 as a boot for Ubuntu but it then says unusable for the rest of the disk space.
That confuses me, I'm not really sure what to do.
EDIT: Ok so I discovered the meaning of Unusable, basically I was trying to make more than 4 physical partitions. In the mean time to doing that I bodged up my HDD so I need to re-install everything, which would give me a chance to get everything right.
Ok so I have BT which has
Ubuntu will have
and I also want to install Helix which is part of the ubuntu group so I assume that will also need to have a
Lets assume I have a 100GB HDD how would I go about setting up the partition table to be able to run all 3 from boot and be able to access data from all distro's. That's a lot more structure question so should be easier to answer by someone who knows. I am only a student who's playing around to learn for his course so I would not need much free space for each distro really, although Ubuntu will need a nice amount as it will be using apache and mysql.
Thank you for listening to my rambling, hopefully this will get to everything running nicely.
If you need more that 4 partitions make an extended partition. Inside an extended partition you can create logical partitions. In face you you can have up to 15 logical partitions on a sata drive. (if the drive is ide you can have more that 15). Nuts n Boldt: Partitions 101
Unlike Windows Linux doesn't care if its installed on a primary or logical partition.