7215 Views 9 Replies Latest reply: Feb 16, 2011 4:51 AM by den.thed
Sounds like your hard disk is dying. This happened to me a few months ago, and I'm currently running off a firewire backup drive. If you can get the computer to boot (try safe mode) get as much of your stuff as you can on to another drive. Then at least if the disk has gone south at least you haven't lost everything. I backup to Time Machine, and before my disk went down I backed up weekly to the Lacie FW drive. You don't think it's important until you need it...
Thank you all for the suggestions! I am not sure how I get to the point of using Disk Warrior since I can't get past the initial "Installation" of Snow Leopard. I am still not sure how to back up my files. I can't get safe mode to work (Holding shift during startup) so I tried Disk Utility's restore button as suggested. The problem is when I select Macintosh HD as a source I can see some of my folders (not all) but I cannot select them to move them. I must be missing a step somehow.
Stolen from MacWorld.
8. Back up a drive
Looking for a free way to back up a drive? Well, you’ve already got one—Disk Utility’s Restore tab. It’s a somewhat crude tool, but it does work. Launch Disk Utility and choose the Restore tab. Next, select the volume you want to back up in the left column, and drag it to the Source text field. Select the volume that will hold the copy, and drag it to the Destination text field.
If you want to erase the contents of the destination volume before storing your backup files there, select the Erase Destination option. Otherwise, the newly stored data is simply added to the existing files. Click on Restore to make a copy, and the backup process is complete. If you need to use your backup files later, simply reverse the Source and Destination directions.
Oh dear - this is bad. Very bad.
How much RAM do you have? When you used Disk Utility's Restore button, did you click the Erase disk check box? Try using Disk Utility's Partition tab to make sure the disk is partitioned with the GUID scheme. How are you connecting the external disk? USB or FireWire? Do you have any other cables you can try?
I read further and I think it's because I didn't use a hard drive with firewire connectivity. I tried with a firewire connection and now it says "Restore Failure: Could not restore- cannot allocate memory." I don't know how much RAM I have. My internal hard drive is partioned with GUID, but this new external drive I am using is partitioned with Apple Partition Map. Do I need to change that? If so I am not sure how to do that. I tried other cables and got the same result. I'm definitely losing faith at this point.
FireWire will be faster than USB, but either will work just fine for copying and/or booting an Intel iMac.
Yes, you need to reset the partition map scheme to *GUID Partition Table* and the format to *Mac OS Extended (Journaled)*
+1. Connect the External HD and open Disk Utility in the Utilities Folder.+
+2. Highlight the External HD in the list of drives and select the Partition tab.+
+3. Under Volume Scheme select 1 Partition and click on the Options... button.+
+4. Now then in the drop down window, Select GUID Partition Table and click OK.+
+5. Set the Format to Mac OS Extended (Journaled), name it and click the Apply button.+
+6. Once that is done, then you can copy your Internal HD to your External HD using Disk Utility Restore, Carbon Copy Cloner or SuperDuper.+