How do I share a iPhoto Library between user accounts?

[iCF-74 ToughMac]

Note: This is also posted in hardware, but I realized it may be best asking here. I can delete the other post if a mod requests, but considering it is a hardware and software question someone here might have the answer...

 

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I just purchased a LaCie 1TB external drive. Completely painless formatting and setup.

 

I want to take my iPhoto library and move it to the 1TB drive to save space on the iMac drive. I'm approaching 10,000 photos so I thought it would be a good idea.

 

I moved over the iPhoto Library to the 1TB drive, and when I restarted Iphoto I pointed it towards the library's new location. I did this in BOTH user accounts. One account has admin privileges and the other does not, BUT I made sure BOTH accounts had read AND write privileges to the LaCie drive as well as the iPhoto Library on that drive.

 

Doesn't work!

 

I keep getting errors on both accounts. Things like 'some of your items could not be saved .. make sure your drive isn't full, or you have access to the iPhoto Library', or 'your privileges are wrong - would you like to repair the library?'

 

Not word for word mind you but the essence is there.

 

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So!

 

How would you go about effectively achieving this goal of placing your iPhoto Library on an external drive, so that it is accessible from 2 accounts. One with admin privileges and one with without??

 

Figured you guys would know....I'm tired of banging my head on a wall.

 

TIA,

 

 

Joe