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- From: moofie@apple.com (Steve Klingsporn)
- Newsgroups: comp.sys.mac.system
- Subject: Re: Users&Groups question
- Message-ID: <moofie-040992093548@90.190.20.6>
- Date: 4 Sep 92 16:44:59 GMT
- References: <1992Sep3.225654.6744@csl.sri.com>
- Sender: news@gallant.apple.com
- Followup-To: comp.sys.mac.system
- Organization: Apple Computer, Inc.
- Lines: 73
-
- In article <1992Sep3.225654.6744@csl.sri.com>, mikel@cisco.com (Mikel
- Ravizza) wrote:
- >
- >
- > Hello netters,
- >
- > I have a strange problem perhaps someone out there has
- > encountered. I have a MacII which is used for file sharing,
- > it's obviousally slow so I bought a quadra top of the line
- > killer, fast, 400 megs or so. Anyway I wanted to make the quadra
- > the file server. No problem I just copied all the files over,
- > including the Users&Groups data file over. Tried to start it
- > up and basically everytime got the error "Can't start file sharing,
- > bad users and groups file". I'm fairily technical with Mac's, however
- > being illerate with 7.0 still I'm alittle confused. There is a
- > file called appleshare pds which seems to be a pointer between
- > files and the users and groups - however the bottom line is I
- > can't copy that file over. What's weird is I can copy it to any
- > other Mac on my net besides the quarda so I'm thinking its something
- > specific. My friends at apple say it "should be able to happen" but
- > they had never tried it. It's basically like not ever being able
- > to copy /etc/passwd around when you upgrade.
- >
- > Any suggestions would be appreciated..
-
-
- From what I understand, there is a bug with B*Trees when moving files
- between different size hard drives. Basically, from what I understand,
- the size of a B*Tree corresponds to the size of a physical sector, which
- varies on volumes of different sizes.
- So, basically, don't copy files with B*Tree's between volumes of
- different sizes (Not that a user would generally know this).
-
- The Users & Groups Data File, from what a guy in my group here says who
- worked on File Sharing, contains such an animal.
-
- As far as I've heard, the B*Tree bug is fixed in the next version of
- the System Software, 7.1, which has been announced, and should be out soon.
-
- I may be totally out of line in explaining this; if so, someone here
- (Apple)
- please correct me. (Stupid Disclaimer).
-
- So, here's an interim fix:
-
- Erase your Quadra's Hard Disk or get rid of the current System Folder.
- Do a *clean* (from floppy or NetInstall) install of System 7.0.1.
- Set up your Users and Groups again.
-
-
- In theory, it's bad practise to "drag copy" a system folder between
- machines, especially machines of different types.
-
- Also, a personal preference of mine is to always do a "Virgin Install"
- of new System Software, i.e., make sure that *NO blessed System Folder*
- and *No Folder called "System Folder"* exists on my drive.
-
-
- I hope this helps. I learned something today as well! :)
-
-
- Steve
- ---------------------------------------------------------------------------
- Steve Klingsporn "There are moments you can reach with
- Apple Computer, Inc. people that are pure bliss, but then
- 20525 Mariani Avenue, MS 35A you have to get it again, and it can
- Cupertino, CA 95014 turn into a futile exercise that can
- (408) 862-6508 undermine your entire existence.
- moofie@apple.com The quest for the perfect moment."
-
- - Robert Smith
-
- Disclaimer: Opinions expressed in this post do not represent my employer.
-