Newbie Question About System Update

Chuck Swiger cswiger at
Tue Apr 19 12:27:41 PDT 2005

Bill Moran wrote:
> Matthias Buelow <mkb at> wrote:
[ ... ]
> Fact is, trying to update a running system could result in silent failures.

True.  It's better to shut down as many tasks as possible.

> The system can not replace programs that are in use,

This is generally not the case.  Unix lets you continue to access a file after 
it has been deleted, so long as the process hangs on to a file descriptor. 
This lets you replace programs in use, without running into the same problems 
that platforms like Windows have.


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