Rahul,
I have also used the Aperture First Aid to repair the perminssions and the library (just the first two options out of three provided).
What else can I do?
Sorry, I overlooked that you already had done the repair options.
To prevent permission issues, I'd enable the "Ignore Ownership" flag on both drives, if you have not already done so.
Your copy-problem may be caused by a bad media file in your library.
You could try to copy in small installments.
- Open the Aperture library package in the Finder by ctrl-clicking (right clicking) the Aperture library.
- You will see a Finder window with folders like Masters, Previews, etc.
- Create an empty folder on your new drive, name it something like ApertureLibraryBackup and drag the items from your current Aperture library on by one to this new folder.
- When the copy fails, e.g. for the Masters folder, check, how much could be copied. The first file, that not could be transferred, is probably the bad image or video.
Delete this file from your Aperture LIbrary (using Aperture) and then try to copy the rest.
Post back, when you discover what cannot be copied.
Regards
Léonie
P.S.
You enable the "Ignore Ownership" flag from the "File > Get Info" panel of the drive.