[MacDV] Re: Can't save iMovie 3.03 Projects

[Peter van der Linden]

On Jan 3, 2004, at 4:50 PM, Carlton Kelly wrote:

> UFS...
>
> ~ $ df -t ufs
> Filesystem    512-blocks     Used    Avail Capacity  Mounted on
> /dev/disk0s10   38812406 25327444 11544342    69%    /
> ~ $ df -t hfs
> ~ $

The use of UFS is the cause of your difficulty with iMovie, Carl.

UFS ( = "Unix File System") is a design for laying out a filesystem on 
disk.  It is used throughout the entire Unix world.  Unfortunately, 
Apple chose to use HFS+ as the standard for its Unix-based operating 
system.  HSF+ is an evolution of HFS, bringing it up to date and 
providing modern FS features.  It supports things that Apple wanted 
(like case insensitive file names) but it is incompatible with the 
entire rest of the world.  Gee, what a familiar story.

For that reason, Apple also supports the formatting and use of UFS.  
Someone developing software for another platform on MacOS X might chose 
to use UFS, so that file transfer is easier.  It would be a strange 
choice otherwise.  Can you say if you chose UFS when you did the 
original installation, or did someone do it for you?

See http://docs.info.apple.com/article.html?artnum=25316
"Unless you have a specific reason to use UFS, you should use the Mac 
OS Extended format"

Your only option at this point is to backup all your data, reformat the 
drive as HFS+, reinstall the OS and all apps, and copy your data back 
in again.   If I were in your shoes, I would do this regardless of 
whether I wanted to use iMovie or not.   Running UFS on Macs paints you 
into a poorly-supported corner.  For example, Airport does not work 
when Mac OS X is installed on a UFS formatted volume.  Some file 
metadata is not available using UFS.

Good luck.

     Peter