New HDD for 2007 Macbook A1181

Could you clarify for me exactly what the problem is you want to solve? Short and precise would be helpful.

OK. Try this:

Drive Preparation

1. Open Disk Utility in your Utilities folder.

2. After DU loads select your hard drive (this is the entry with the mfgr.'s ID and size) from the left side list. Note the SMART status of the drive in DU's status area. If it does not say "Verified" then the drive is failing or has failed and will need replacing. SMART info will not be reported on external drives. Otherwise, click on the Partition tab in the DU main window.

3. Under the Volume Scheme heading set the number of partitions from the drop down menu to one. Click on the Options button, set the partition scheme to GUID then click on the OK button. Set the format type to Mac OS Extended (Journaled.) Click on the Partition button and wait until the process has completed.

4. Select the volume you just created (this is the sub-entry under the drive entry) from the left side list. Click on the Erase tab in the DU main window.

5. Set the format type to Mac OS Extended (Journaled.) Click on the Security button, check the button for Zero Data and click on OK to return to the Erase window.

6. Click on the Erase button. The format process can take up to several hours depending upon the drive size.

If you have more than one partition then repeat Steps 4-6 for each partition.

If you want more than one partition on the drive, then follow this modification to Step 3:

3. Under the Volume Scheme heading set the number of partitions from the drop down menu to the number of partitions you desire. Use the sizer to change the sizes of each partition to whatever you prefer. If you want equal sized partitions, then you don't need to change anything. Click on the Options button, set the partition scheme to GUID then click on the OK button. Set the format type to Mac OS Extended (Journaled.) Click on the Partition button and wait until the process has completed.

Now, if you want to transfer the system on the external drive to one of the partitions on the newly formatted internal drive do this:

Clone using Restore Option of Disk Utility

1. Open Disk Utility from the Utilities folder.
2. Select the destination volume from the left side list.
3. Click on the Restore tab in the DU main window.
4. Check the box labeled Erase destination.
5. Select the destination volume from the left side list and drag it to the Destination entry field.
6. Select the source volume from the left side list and drag it to the Source entry field.
7. Double-check you got it right, then click on the Restore button.

Destination means the desired volume on the new internal drive. Source means the external startup drive.

The limit is that of available drives. 1 TB is the current maximum available. There is no limit with regards to the computer, however. You can have a single 1 TB partition or as many smaller ones as you wish.

1 TB is fine, & well under the limit. 🙂

GPT supports partition sizes up to 9.3 zettabytes or 8 ZiB−512 bytes (9,444,732,965,739,290,426,880 bytes or 18,446,744,073,709,551,615 (2⁶⁴−1) sectors × 512 (2⁹) bytes per sector).

http://en.wikipedia.org/wiki/GUID_Partition_Table

So we know more about it...

At the Apple Icon at top left>About this Mac, then click on More Info, then click on Hardware> and report this upto but not including the Serial#...

Hardware Overview:

Model Name: iMac

Model Identifier: iMac7,1

Processor Name: Intel Core 2 Duo

Processor Speed: 2.4 GHz

Number Of Processors: 1

Total Number Of Cores: 2

L2 Cache: 4 MB

Memory: 6 GB

Bus Speed: 800 MHz

Boot ROM Version: IM71.007A.B03

SMC Version (system): 1.21f4

If it's the one I think it is, then 6GB is the Limit, requiring you to toss one 2 BG stick & replace it with a 4 GB stick...

http://everymac.com/systems/apple/macbook/stats/macbook-core-2-duo-2.4-black-13- early-2008-penryn-specs.html

http://eshop.macsales.com/item/Other%20World%20Computing/5300DDR2S4GB/

Yes, that's the one, holds 6 GB as above.