cglur@onwe.co.za wrote:

1. OFSTools.Mount <oldPartiton> AosFS IDE<IdeNo>#<partnNo> ~

2. System.Directory <oldPartiton>:*

3. Select and open file ( < 1 screen viewer size)

4. cutNpaste viewer contents to <tempViewer>

5. Close viewer opened in 3.

6. OFSTools.Unmount <oldPartiton>

7. move or otherwise access <tempViewer>

8. Observer (or not): TRAP -14 NIL reference ( 0000006CH ) (PC Native 11.10.2001)

The problem is that you are unmounting a file system containing files that are still referenced. Because of the way the Oberon text system works, cutting (deleting) and pasting (recalling) text does not make a copy, but just creates another reference to the same underlying text file (see Project Oberon). Even if you copy the text (MR-MM or ML-MM interclick), the same underlying file is still used. The only solution I see is to copy the original text file to another file system that will remain mounted, or to refrain from unmounting the original file system. -- Pieter -- Pieter Muller, Computer Systems Institute, ETH Zurich / MCT Lab, Zurich Native Oberon OS: http://www.oberon.ethz.ch/native/