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Old 05-13-2006, 05:47 AM   #1
dazz
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Registered: Apr 2005
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Setting up an IBM T23 laptop for dual boot Linux/Win2k


Hello

I am attempting to set up a IBM Thinkpad T23 to dual boot Win2k or the coming release of Ubuntu 6 Dapper Drake. I understand Ubunto runs on a T23 straight out of the box.

The first problem is partitioning the disk properly. I used Partition Magic 2002 to resize the Win2k partition before creating Linux partitions and a FAT32 partition to allow Windows and Linux to share data. So I now have in order:

Win2k NTFS 6.9GB

Linux Ext3 7.8GB
Swap Swap2 1.0GB (RAM 512MB)
Data FAT32 12.2GB

These laptops normally have a hidden partition that holds the win2k restoration files instead of a CD. Partition Magic wiped this partition without warning. I don't think this is too much of a problem yet because all the drivers are available on-line so I could buy vanilla Win2k, or get the restoration CDs from IBM. Thats not my current problem.

My question is, have I partitioned correctly? Are there any settings I need to modify to make this all work (e.g. label, partition ID etc)? Win Ubuntu install OK with the disk partitioned this way.


The next problem is I don't know how to set up the dual boot feature. A search on the web shows others have used Boot Magic but that didn't come with my (free) copy of Partition Magic. Whats the best choice of boot manager and where can I get instructions relevant to the T23?

Any advice would be much appreciated.
 
Old 05-13-2006, 06:31 AM   #2
jonaskoelker
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Registered: Jul 2004
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well, I use 8 gig on my /usr partition, so you might be a little short, but I think you can deal with it by not installing all the crap I have installed ;-)

Aside from that, it looks fine. For dual-booting, grub will do just fine, chainloading the windows bootloader. Search the web for a guide on grub, and/or read the manual. There really isn't an easir way. If Windows isn't on the fist disk, you will need to lie to it, with the `map' command (IIRC).

Here's a snippet from my menu.lst--perhaps you can extrapolate from it:

Code:
title Linux
root (hd0,0)
kernel (hd0,0)/vmlinuz-2.6.8-1-686 root=/dev/hda2
initrd (hd0,0)/initrd.img-2.6.8-1-686
 
Old 05-13-2006, 10:20 AM   #3
lotusjps46
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Yes, Ubuntu should install to the present set-up without partition problems. The FAT32 partition is a nice touch; it will be available in either Linux or MS Windows (Linux partitions are not available from inside MS operating systems natively) . Put your multi media content there.

When you install Umbuntu it will either ask you where to put the boot loader (grub, I think, or LILO), or it will just install it in the Master Boot Record without asking. It should not affect an MS operating system. You don't need to install any other boot loader, Linux will do that for you. It will give you a splash screen and allow you to select MS or Linux. If you re-install MS Windows {shudder} it will re-write the MBR, and you will lose access to your Linux system until you do some special stuff to recover it.

Go for it.

C
 
Old 05-13-2006, 10:31 AM   #4
Emerson
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This 1 GB of swap is probably a waste of good disk space. My Thinkpad has only 256 MB of RAM and swap is hardly used. I wanted to double my RAM when I bought my T23 but decided to see how it does with 256 MB first. It does so well I do not see any need to spend money and potentially shorten the battery life by adding another module. I'd recommend a really small swap with your RAM, just in case, 128 MB maybe. Depends of course on what you are using your Thinkpad for.
 
Old 05-13-2006, 05:13 PM   #5
jonaskoelker
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Emerson: I don't think the kernel folks will agree unanimously on that. It might be a bit over the top, and for larger disks I'd definitely not say that a gig is too much, because you're never gonna' fill up the disk anyways. But for this case, it might, might, be a good idea to downsize it to, say, 512 megs (possibly less).
 
Old 05-14-2006, 06:28 AM   #6
dazz
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Registered: Apr 2005
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Thanks for the advice.

I keep reading the 2:1 ratio for swap space, but given that the original reason for swap was lack of RAM, logically, more RAM should mean less swap. Not the other way around. I'm not losing any sleep over this one.

I've partitioned by disk so now I'm just waiting for the next Ubuntu version before doing any more.
 
Old 05-14-2006, 06:41 AM   #7
Emerson
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Quote:
Originally Posted by jonaskoelker
Emerson: I don't think the kernel folks will agree unanimously on that.
There was a resriction with older *BSD kernels, those kernels could not manage RAM usage perfectly without 2xRAM swap. Never heard it about Linux. Your remark is very interesting indeed, could you be more specific please?
 
  


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