Path: utzoo!utgpu!watmath!clyde!att!osu-cis!tut.cis.ohio-state.edu!mailrus!ames!oliveb!3comvax!jimc
From: jimc@vax.3Com.Com (Jim Christy)
Newsgroups: comp.sys.mac
Subject: Re: Appleshare and Startup Volumes
Summary: SwitchLaunching Network Volumes
Message-ID: <1932@3comvax.3Com.Com>
Date: 28 Dec 88 21:14:27 GMT
References: <310@srhqla.UUCP> <10330105@accuvax.nwu.edu> <6138@ecsvax.uncecs.edu>
Organization: 3Com Corp., Santa Clara, CA
Lines: 24

In article <6138@ecsvax.uncecs.edu>, dlugose@ecsvax.uncecs.edu (Dan Dlugose) writes:
> In article <10330105@accuvax.nwu.edu> chris@accuvax.nwu.edu (Chris Krohn) writes:
> >	Even when booting originally from a floppy, Robert is still
> >correct, as Apple does not currently provide a method of switching to
> >the Network volume as the "startup" volume.
> >	If some third party company has developed a product which will
> >do this, they are staying afwully quiet about it....
>    With Macs in a 3Comm network, after booting from a floppy, it is
> easy to switch over to a System stored on the server.  I've done this
> here, but can't answer more questions, as it's not set up now.  Of
> course 3Comm runs something SIMILAR to Appleshare.
>    Dan

3Com allows switch launching because each user has a private
shared folder (a directory subtree) on a network server called a Home 
Folder.  Only one user at a time can be linked to the Home Folder.  This 
prevents conflicts in accessing system files.  After the Home Folder is 
mounted, the 3+ external file system on the client resets the bits 
"bNoSwitchTo" and "bNoSysDir" for the PBHGetVolParms call that is made 
relative to the Home Folder (see Inside Mac volume 5, pg 392).

Jim Christy
3Com Corp.