TRB3 Centos-7 instructions

Introduction

See main TRB3 document for introductory material.

Centos-7 Setup

The TRB3 software and associated analysis packages are developed on newer operating systems than Centos-7. So a certain amount of work is needed to get the software to work on Centos-7.

1) I started by copying over the software in trbsoft from an existing installation.

scp trbsoft_backup.tar.gz trb3@ladd00:/data0/trb3/.

2) The main problem is with the TRB3 code requiring a newer version of perl. I used perlbrew to setup a newer version of perl than Centos-7 supports:

Following the instructions on website:

https://perlbrew.pl/

source ~/perl5/perlbrew/etc/bashrc
perlbrew init
perlbrew install perl-5.24.0

and then add this line to login script

rm -f /home/trb3/.perlbrew/init
source ~/perl5/perlbrew/etc/bashrc
perlbrew switch perl-5.24.0 

3) Rebuild libtrbnet with different perl

cd ~/trbsoft/trbnettools/libtrbnet_perl
perl Makefile.PL
cd /home/trb3/trbsoft/trbnettools
make TRB3=1 clean
make TRB3=1
make TRB3=1 install
<pre>

4) Modify 

<pre>
~/trbsoft/daqtools/merge_serial_address.pl

to use the perlbrew version of perl, rather than the system default.

5) Rebuild DABC

Make sure you have ROOT (ie ROOTSYS) setup properly

 svn co https://subversion.gsi.de/dabc/trb3 trb3
cd trb3
make

This seems to build dabc and stream successfully. go4 doesn't compile cleanly, but this doesn't matter for the MIDAS frontend readout.