I want to Patrition my Hard Drive into 2

pfhannan · 06-12-2012, 08:58 AM

I want to install Lion on one partition, and Snow Leopard on the other, I have all Snow Leopard backup on my time machine, are there ant step by step instructions. I have a 750GB HD on my MBP

DeltaMac · 06-12-2012, 09:31 AM

If there is anything on your hard drive that you need to keep (not backed up), then you can split your partition, using the Partition tab in your Disk Utility - or if everything is already backed up, then simply re-partition into two partitions.
One partition will be for Snow Leopard. You can restore your time machine backup to that partition.
And, installer Lion on the other partition. The two partitions, and the installs, may take 3 or 4 hours - maybe more depending on how much data is on your Time Machine backup.

And, leave your Startup Disk set for your normal system boot, so it would boot there by default. Boot to the other system partition by doing an Option-restart, and choose the partition that you want to boot to.
The main idea, I think, is that you can decide at partition time, how large you want each partition to be. I would usually make the most-used system somewhat larger. However, you do have 700 GB or so to play with, so around 350 GB for each may be fine. It's up to you to decide that.
How much more detail do you need on this...?

06-12-2012, 08:58 AM	#1
pfhannan Major Leaguer Join Date: Mar 2007 Posts: 410	I want to Patrition my Hard Drive into 2 I want to install Lion on one partition, and Snow Leopard on the other, I have all Snow Leopard backup on my time machine, are there ant step by step instructions. I have a 750GB HD on my MBP

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06-12-2012, 09:31 AM	#2
DeltaMac League Commissioner Join Date: Jan 2002 Posts: 7,958	If there is anything on your hard drive that you need to keep (not backed up), then you can split your partition, using the Partition tab in your Disk Utility - or if everything is already backed up, then simply re-partition into two partitions. One partition will be for Snow Leopard. You can restore your time machine backup to that partition. And, installer Lion on the other partition. The two partitions, and the installs, may take 3 or 4 hours - maybe more depending on how much data is on your Time Machine backup. And, leave your Startup Disk set for your normal system boot, so it would boot there by default. Boot to the other system partition by doing an Option-restart, and choose the partition that you want to boot to. The main idea, I think, is that you can decide at partition time, how large you want each partition to be. I would usually make the most-used system somewhat larger. However, you do have 700 GB or so to play with, so around 350 GB for each may be fine. It's up to you to decide that. How much more detail do you need on this...?