Volume Sharing

Volume Sharing allows you to connect an external SCSI storage device to your Mac and access is from within Bernie. (The text below will refer to the device as "hard disk" - any other Apple IIgs compatible storage device will work equally well.)

Requirements

To share a hard disk, you need a tool for mounting the hard disk. This can be either...

- FWB's Hard Disk Toolkit (recommended) or
- Silverlining

The following tutorial uses FWB's Hard Disk Toolkit. Both products are commercial software.

Important: to make the hard disk recognizable, you need to activate PC Exchange or File Exchange (MacOS 8.5) respectively. Both control panels are components of the standard system software.

| Connect The Hard Disk Unplug the hard disk from your Apple IIgs. Check the SCSI ID and make sure the hard disk is not intergering with another SCSI device connected to your Mac. |
| Check HDT Extension Before we proceed, let's have a look at the HDT Extension. The hard disk will only mount if the HDT Extension is stored in the Extensions folder of your system. Open the Extensions Manager and verify that the HDT Extension is listed, as shown to the right. |
| Start Hard Disk Toolkit (HDT) Primer Launch the HDT Primer application: |
| Select Your Apple II Hard Disk The HDT Primer window shows all the SCSI devices connected to your system. Among them will be your Apple IIgs hard disk. In the illustration to the right, the hard disk with SCSI ID #3 is the one we'd like to mount. |
| Mount The Hard Disk Push the Mount button in HDT Primer to mount the hard disk on the Macintosh desktop. |
| Start Bernie The hard disk now appears on the desktop, and we'll continue with Bernie. Start the Bernie application and boot with a GS/OS startup disk. |
| Mount The Hard Disk Open Bernie's "Disks" window (choose "Disks" from the "Windows" menu). You will see a window as the one to the right. It lists all the disk images and shared disks that are currently mounted in Bernie. Find the Apple IIgs hard disk on the Mac desktop (in our case it is the volume titled "Boot") and drag & drop it into the window. Alternately, choose "Share Volume..." from the "File" menu and pick the Apple IIgs hard disk. Note: please read about possible loss of data when sharing hard disks formatted with HFS (the Macintosh file format). This does not apply when the hard disk has been formatted with ProDOS. |
| Done! That's it, the Apple IIgs hard disk is now mirrored in Bernie. |