Thanks R, those are very good points.

-Paul
________________________________
From: fsbuild <fsbu...@contbay.com>
Sent: Tuesday, September 13, 2022 2:21 PM
To: freesurfer@nmr.mgh.harvard.edu <freesurfer@nmr.mgh.harvard.edu>
Cc: r.lud...@eni-g.de <r.lud...@eni-g.de>; Wighton, Paul 
<pwigh...@mgh.harvard.edu>; fsbu...@contbay.com <fsbu...@contbay.com>
Subject: Re: [Freesurfer] Follow Up License Freesurfer 5.3 Ubuntu


        External Email - Use Caution

The glibc version has changed in newer versions of Ubuntu.  That and/or changes 
to encryption related functions is likely preventing the license decoding from 
working.   Binary backwards compatibility cannot assure old binaries will 
indefinitely run on newer releases of the operating system., e.g., CentOS6 
binaries may not run on CentOS8.  Freesurfer 5.3 was released in 2013 at the 
time of Ubuntu 12 so I would not assume it will run on Ubuntu 18 and/or newer 
versions.  I don['t think LD_LIBRARY_PATH will help with statically linked 
binaries - and sertting it to point to a version could break dynamically linked 
binaries with RPATH strings.  In general it is a bad idea to be running with 
different versions of glibc on the same system.

There is an Ubuntu 12 VM running Freesurfer 5.3 available from 
https://surfer.nmr.mgh.harvard.edu/pub/dist/freesurfer/5.3.0/freesurfer-Virtualbox-linux-x86-stable-pub-v5.3-full.vdi.gz<https://secure-web.cisco.com/13_Z5mhms1Dpq_WEjE79lEciW_21298e4jPP1NTDsZfB8Igfsnnu3qYl3BeyM76R9HGTX5lxisLN47qGSSeHCN3PAWPWaLY0swK-cyJZamxaMUeok9Y0urSrvDuG7EXCubWSA3M94NvLmMuwxWo8LWS7hCY67NvQdwSYhtCSqCRyqvpp1Goknf5X8rRc0NCmHs7-L7zGrDXU1W5kOLf63Mk6ffRDL39v9CdhvyvDG9umhsQ0VhOFfdRF6EeAKHLTgPTCv-FmbijBEd2vF73cPSHsNyOyqNt9aB4ywSLhNzB1ro12Z78khyvHF8cXPQ3rz/https%3A%2F%2Fsurfer.nmr.mgh.harvard.edu%2Fpub%2Fdist%2Ffreesurfer%2F5.3.0%2Ffreesurfer-Virtualbox-linux-x86-stable-pub-v5.3-full.vdi.gz>
   That VM still runs in VirtualBox on todays operating systems.

- R.

On Sep 13, 2022, at 13:28, Wighton, Paul <pwigh...@mgh.harvard.edu> wrote:

Hi Rüdiger,

This is really interesting..  I'm able to reproduce this issue in a docker 
container.  Anyone else who would like to reproduce or look into this issue can 
use the following containers

- The container `pwighton/freesurfer:5.3.0-HCP` is based off of ubuntu 16.04 
(glibc v2.23) and everything works as expected in this container.
- The container `pwighton/freesurfer:5..3.0-HCP-focal` is based off of ubuntu 
20.04 (glib2 v2.31) and I am experiencing the same issue you describe.
- The container `pwighton/freesurfer:7.3.2-focal` is based off of ubuntu 20.04 
and has the latest version of FreeSurfer installed.  Everything works as 
expected in this container.

So the issue seems to be some interaction between the v5.3 license checking 
code and the crypt() function provided by different versions of glibc, but that 
is just speculation at this point.

I'm sorry I don't have any solution for this at the moment.  You mention you 
are using lmod, would it be possible to define LD_LIBRARY_PATH inside the 
FreeSurfer 5.3 module to point to an older version of glibc?

-Paul

________________________________
From: freesurfer-boun...@nmr.mgh.harvard.edu 
<freesurfer-boun...@nmr.mgh.harvard.edu> on behalf of Ludwig, Rüdiger 
<r.lud...@eni-g.de>
Sent: Tuesday, September 13, 2022 11:32 AM
To: freesurfer@nmr.mgh.harvard.edu <freesur...@nmr..mgh.harvard.edu>
Subject: [Freesurfer] Follow Up License Freesurfer 5.3 Ubuntu

Hello again,

I realized I might have missed some important information in my question about 
freesurfer 5.3 license files a few days ago:

We use Ubuntu 20 with lmod. FREESURFER_HOME  is  ''/opt/apps/freesurfer/5.3/''  
for freesurfer 5.3

When we try ''mri_convert sample-001.mgz sample-001.nii.gz'' without a proper 
license file we get the Error:
ERROR: Invalid FreeSurfer license key found in license file 
/opt/apps/freesurfer/5.3/license.txt

After we copy the license file to the proper position we get:
ERROR: Invalid FreeSurfer license key found in license file 
/opt/apps/freesurfer/5.3/license.txt

So the file is obviously read but rejected. We get the same result it with a 
brand new license file, and one that still works for freesurfer 5.3 on our 
CentOS 7 node.
We do not have any problems reading the license file in freesurfer 7.2 or 
freesurfer 7.3

If you need any further information to help us, we am more than willing to 
provide that.

Thank you so much in advance

Ruediger

---
Rüdiger Ludwig (he/him)
IT-Service
European Neuroscience Institute
A Joint Initiative of the University Medical Center Göttingen and the Max 
Planck Society
Grisebachstr. 5
37077 Göttingen

Tel: +49 551-39 61308
Email: r.lud...@eni-g.de
Office: 0.051

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