How does one SUCCESSFULLY transfer Time-Machine backup to a new (larger) hard disk drive using OSX 10.5.8

Question

I have read a number of articles about how to transfer a complete Time-Machine backup to a new (larger) hard disk-drive.  Some of these articles are specifically for OSX10.6 users, which are not applicable to me since I am operating with OSX 10.5.8.
However, I have tried several times to use the Disk Utility 'Restore' function, dragging my old time-machine volume into the 'Source:' box and my new volume into the 'Destination:' box.  This works, of sorts, BUT the newly created volume on the new larger hard disk-drive remains the same size as the original volume on the old Time-Machine HDD, with no apparent way of increasing the new volume's size.  So I am not really any better off:
E.g. the total capacity of my new HDD is stated by 'Disk Utility' to be 465.8 GB, of which I'm told 228.2 GB is used for the Backups.backdb folder, but only 4.6 GB of free space is actually available.  Yet under the 'Partition' tab of 'Disk Utility' it tells me that there is still 236.4 GB of available space.
Does anyone know how to resolve this issue without upgrading to OSX 10.6?

Answer 1

First, how did you prepare your new drive?  See:
Drive Preparation
1.  Open Disk Utility in your Utilities folder.  If you need to reformat your startup volume, then you must boot from your OS X Installer Disc. After the installer loads select your language and click on the Continue button.  When the menu bar appears select Disk Utility from the Utilities menu.
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. Set the format type to Mac OS Extended (Journaled.) Click on the Options button, set the partition scheme to GUID (for Intel Macs) or APM (for PPC Macs) then click on the OK button. 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 Options 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 plan to partition this new drive then be sure you create a larger partition for TM than your old volume.
Next, clone your old TM volume:
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 external backup drive. Source means the internal startup drive.