All Mac versions currently running OpenAFS client or Auristor client 
(OpenAFS compatible) will need to upgrade the client to AuriStorFS v0.160 
before upgrading MacOS to High Sierra.

We generally recommend against upgrading to a new major OS immediately 
that it comes available.  In this case, OpenAFS may not be the only thing 
to break, since the format of the filesystem on the boot drive changes.

The legacy OpenAFS client distribution probably won't ever get an upgrade, 
due the difficulties of signing the installers in the way Apple requires, 
so this means all Macs still needing AFS access will need to upgrade to 
the AuriStorFS client.

We have NOT yet tested this - the new client has just become available.

Email me for more information.

  Richard

-- 
Richard Brittain,  Research Computing Group,
                    IT Services, 37 Dewey Field Road, HB6219
                    Dartmouth College, Hanover NH 03755
[log in to unmask] 603-646-2085
http://rc.dartmouth.edu/

---------- Forwarded message ----------
Date: Thu, 21 Sep 2017 23:06:49 -0400
From: Jeffrey Altman <[log in to unmask]>
To: auristorfs-osx-users List Member <[log in to unmask]>
Subject: [auristorfs-osx-users] URGENT: macOS High Sierra to be released next
     week - must upgrade to AuriStorFS v0.160 first

To all AuriStorFS macOS users,

Next week Apple is expected to release macOS High Sierra to the public
as a free upgrade.

Apple has published the following document describing the upcoming
changes that institutional end users must prepare for.

   Prepare your institution for iOS 11, macOS High Sierra, or macOS
   Server 5.4

     https://support.apple.com/en-us/HT207828

In that document Apple references two sets of changes that impact
macOS systems upgraded to High Sierra if an OpenAFS or AuriStorFS client
is installed.

  1. Apple File System (APFS)

     As part of the High Sierra upgrade the local file system will
     be converted from HFS+ to APFS.  Unfortunately, the OpenAFS
     and AuriStorFS disk cache is file system dependent.  All OpenAFS
     clients for macOS and all AuriStorFS clients for macOS prior
     to AuriStorFS v0.160 are unaware of APFS and will panic the machine
     if the disk cache is located on an APFS volume.

     Today, AuriStorFS v0.160 has been published to the AuriStorFS
     download web page:

       https://www.auristor.com/filesystem/client-installer/

     Prior to performing the macOS High Sierra upgrade, any installed
     OpenAFS or AuriStorFS must be uninstalled or upgraded to
     AuriStorFS v0.160.

     As with any macOS upgrade, after the upgrade the High Sierra
     specific installer for AuriStorFS should be installed.  The
     macOS High Sierra v0.160 dmg was published to the AuriStorFS
     download site today.

  2. User Approved Kernel Extension Loading

     https://support.apple.com/en-us/HT208019

     Apple has decided that newly installed kernel extensions will
     require "User Approval" before they can load.  "User Approval"
     is more than just running an installer with Administrator
     privileges.  After installing AuriStorFS on macos High Sierra,
     an end user will have to manually approve the kernel extension
     before /afs can be accessed.

I realize the time is short.  Apple is expected to release macOS High
Sierra on Tuesday 26 September 2017.  AuriStor, Inc. became aware of the
panic after upgrade issue a couple of days ago.

Jeffrey Altman
AuriStor, Inc.