HT3910: Mac OS X v10.6 Snow Leopard: How to Erase and Install
Learn about Mac OS X v10.6 Snow Leopard: How to Erase and Install
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All replies
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Helpful answers
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Sep 6, 2012 12:36 PM in response to Mike Safarby Kappy,Are you trying to erase the drive and do a clean install of Snow Leopard or are you trying to install Snow Leopard on a separate partition on your hard drive? If the latter you will need a partition that's minimally 20-30 GBs. If you don't have one set up, then you must first create a new partition on your hard drive provided there is sufficient contiguous free space to do so.
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Sep 6, 2012 3:21 PM in response to Mike Safarby noondaywitch,1 Partition (i.e. 1 volume) is sufficient, especially with what is by today's standards a very small drive.
How did you format the HD? It needs to be GUID partition map and Mac OS extended (journalled.
What do mean by "retail image"? SL comes on a DVD which you need to boot from to format and install.
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Sep 6, 2012 3:52 PM in response to Mike Safarby Mike Safar,My DVD player is broken, so I have a DMG of the disk.
I'm erasing the whole hard drive, and creating a journaled, GUID partition map.
I'm certain the Mac is in working order because I successfully recovered a Time Machine backup onto the very same drive and it boots fine. But I want an absolutely clean install on this machine.
As I said, dozens of folks have reported this issue, but I can't believe that I can't do a fresh install. Am I going to have to install Leopard and then upgrade or something?
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Sep 7, 2012 4:02 AM in response to Mike Safarby noondaywitch,The disc image needs to be mounted on a bootable volume to run DU from it to erase the drive.
If that drive is the startup drive, it won't work, because the target drive has to be unmounted to carry out the operations.
Some people have installed successfully from USB thumb drives, but I've never had occasion to attempt that.
Perhaps one of them will see this thread, but it may help if you started a new one asking specifically how to install from a Disc Image.