In this procedure, you can migrate from either your Time Machine backup, or from a cloned drive. When the installation completes, migrate your data from your backup to the new system.Close "Disk Utility" and continue with the Snow Leopard installation.Close this window and click "Apply" to repartition the table.Click the "options" button and select "GUID" for the partition table.
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Select "1 partition" from the drop-down menu, and then give the partition a name and format it as "Mac OS Extended (Journaled).When the installer loads, select your language and then launch "Disk Utility" from the "Utilities" menu and perform the following steps: To do this, first be sure your backups are complete and accessible, and then boot off the Snow Leopard DVD (click the "Utilities" button instead of "Continue" in the Leopard installer, or reboot and hold the "C" key to boot off the CD/DVD drive).
DISK GENIUS LITE REPARTITION MAC OS X INSTALL
If you have a full system backup via Time Machine or a drive clone, you can format your boot drive and do a clean install of OS X. Since you are booted from the Snow Leopard DVD you should be able to continue immediately without having to reboot your system.
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Select your boot device (the device above the boot volume name), and select the "Partition" tab.Then launch "Disk Utility" from the "Utilities" menu and perform the following steps: To do this, boot from the Snow Leopard DVD and select your language. The way around this is to have Disk Utility repartition the drive, which, luckily, can be done without having to format the drive. This problem might happen even if the drive checks out with various disk utility software. Fixing any errors may require booting off a volume other than the boot volume (i.e., the Snow Leopard DVD or a Drive Genius DVD), and performing the fixes from there. The first thing to do is run Disk Utility or, even better, run a third-party utility program to check out the drive to ensure it is functioning correctly. The fixes involve rewriting the table without formatting the drive, but if that does not work then formatting should definitely work (provided you have a backup).
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This problem happens because the Snow Leopard installer detects a small discrepancy in the partition table of the drive, and assumes booting off the drive may not be successful. Selecting the disk tells me 'Mac OS X cannot be installed on Macintosh HD, because this disk cannot be used to start up your computer.' Rebooting and attempting an install direct from CD yields the same results." Only one disk is available - my boot disk. I am asked where to install Snow Leopard. When the drive is selected, the installer claims the system cannot boot from the drive.Īpple discussion poster " redpola" writes: Instead, it will display the drive with a yellow triangle on it, indicating something is wrong with that drive. When trying to install Snow Leopard, some people are having a problem where the installer will not recognize the current boot drive as a valid destination for Snow Leopard.