Re: Base 7.0.10 and RHEL 6

["James P. Withrow via Tech-talk" <tech-talk at aps.anl.gov>]

Hi Mark - 

This is what I have in my notes from trying to build EPICS 7.0.9 under CentOS 6:

yum install perl-App-cpanminus

curl -L https://cpanmin.us | perl - --self-upgrade

cpanm Pod::Simple@3.27

You'll need to edit the repo file to point at http://vault.centos.org. 

I don't know if this will cause any problems with AreaDetector, but it was enough to allow me to finish building 'base'.

-Jim

Jim Withrow, Research Support Specialist - jwithrow at cornell.edu

NE-CAT, Cornell University - https://necat.chem.cornell.edu

Advanced Photon Source, Sector 24

9700 S. Cass Avenue, Building 436 E001

Lemont, IL 60439

---

From: Tech-talk <tech-talk-bounces at aps.anl.gov> on behalf of Érico Nogueira Rolim via Tech-talk <tech-talk at aps.anl.gov>
Sent: Monday, May 4, 2026 1:16 PM
To: tech-talk at aps.anl.gov <tech-talk at aps.anl.gov>
Subject: Re: Base 7.0.10 and RHEL 6

 

Hi Mark!

On 5/4/26 15:04, Mark Rivers via Tech-talk wrote:

Folks,

I have a few old RHEL 6 systems running Dectris 100K detectors.  These cannot be upgraded to more recent Linux because of the driver for the GigaStar PCI card.

I have been able to build EPICS base and areaDetector for these up to base 7.0.7.

We are currently testing a setup running the old Linux kernel and camserver inside a VM with PCI-passthrough, and running the IOC outside of the VM on a modern distro, with a shared mount for the camserver files.

It's worked for initial tests, but we haven't tried putting it in production just yet.

If this setup would be useful to you, let me know and I'll see if we can speed up documenting the setup.

I just tried moving to base 7.0.10, and it fails as follows:

make -C O.linux-x86_64-rhel6 -f ../Makefile TOP=../../../../.. \

            T_A=linux-x86_64-rhel6 install

make[5]: Entering directory `/corvette/usr/local/epics/base-7.0.10/modules/database/src/ioc/O.linux-x86_64-rhel6'

perl -CSD /corvette/usr/local/epics/base-7.0.10/bin/linux-x86_64-rhel6/genVersionHeader.pl   -t ../../../../.. -N EPICS_VCS_VERSION -V "" ../O.Common/epicsVCS.h

Keeping VCS header ../O.Common/epicsVCS.h

    EPICS_VCS_VERSION = ""

perl -CSD ../../../../../bin/linux-x86_64-rhel6/dbdToMD.pl   -I. -I.. -I../O.Common -I../as -I../bpt -I../db -I../dbStatic -I../dbtemplate -I../misc -I../registry -I../rsrv -I../../../../../dbd -o menuConvert.md ../bpt/menuConvert.dbd.pod

Pod::Simple version 3.27 required--this is only version 3.13 at /corvette/usr/local/epics/base-7.0.10/bin/linux-x86_64-rhel6/../../lib/perl/Pod/Markdown.pm line 21.

BEGIN failed--compilation aborted at /corvette/usr/local/epics/base-7.0.10/bin/linux-x86_64-rhel6/../../lib/perl/Pod/Markdown.pm line 21.

Compilation failed in require at (eval 6) line 3.

        ...propagated at /usr/share/perl5/base.pm line 94.

BEGIN failed--compilation aborted at /corvette/usr/local/epics/base-7.0.10/bin/linux-x86_64-rhel6/../../lib/perl/EPICS/PodMD.pm line 8.

Compilation failed in require at ../../../../../bin/linux-x86_64-rhel6/dbdToMD.pl line 21.

BEGIN failed--compilation aborted at ../../../../../bin/linux-x86_64-rhel6/dbdToMD.pl line 21.

The issue is the version of POD:Simple. RHEL 6 only provides 3.13 but it appears that base requires 3.27.

I did not see anything in the base release notes about what versions of Linux are supported in 7.0.10.

I understand if there is a need to drop support for RHEL 6, I can continue to use base 7.0.7 for that arch.  However, if this was unintentional I thought I would let folks know about the issue.

Thanks,

Mark

 

Aviso Legal: Esta mensagem e seus anexos podem conter informações confidenciais e/ou de uso restrito. Observe atentamente seu conteúdo e considere eventual consulta ao remetente antes de copiá-la, divulgá-la ou distribuí-la. Se você recebeu esta mensagem por engano, por favor avise o remetente e apague-a imediatamente.

Disclaimer: This email and its attachments may contain confidential and/or privileged information. Observe its content carefully and consider possible querying to the sender before copying, disclosing or distributing it. If you have received this email by mistake, please notify the sender and delete it immediately.