A user who does not have "removable media" privileges logs in to a computer that has a FireWire hard drive connected to it and then logs out. A user with "removable media" privileges logs in, but the FireWire hard disk icon does not appear on the desktop. The only solution to re-enable access to the FireWire hard drive is to restart the computer.
To avoid a this symptom, a Macintosh Manager administrator or system owner must grant the "removable media" privilege to any users and their workgroup that could potentially log into a computer that has a FireWire hard drive connected to it.
These symptoms could potentially arise in either Macintosh Manager or Multiple Users if there is a mix of Removable Media privileges amongst workgroups (Macintosh Manager) or users (Multiple Users) logging into the same client computer.
Note: RAM disks are also considered a form of removable media. For details about RAM disk interaction the Macintosh Manager and Multiple Users environment, please see article number 31339: Macintosh Manager: RAM Disks and Multiple Users Interaction .
Solution
Macintosh Manager
2. In the Macintosh Manager application, this setting can be set for each Restricted Finder and Panels workgroup and is located: Workgroups tab -> <select workgroup> -> Privileges tab
3. In the Privileges section of the Privileges tab, choose Read & Write from the Removable Media (Except CDs) pop-up menu.
Multiple Users
2. In the Multiple Users control panel, this setting must be set for each Limited and Panels user and is located:
<select user> -> Click Open -> Edit "<user name>" window ->Privileges tab
3. In the "Allow access to" section of the Privileges tab, select "Other removable media"
4. Close the Edit "<user name>" window.