Based on the excellent Installing the Lotus Notes 7.01 Linux Client by Julian Robichaux, we messed around a bit with the Lotus Notes on Linux. Essential for Centos 4.4 appears to be the installation of Mozilla 1.7.12 and the creation of /etc/gre.conf to contain

[1.7.12]
GRE_PATH=/usr/lib/mozilla-1.7.12

I had the greatest of trouble to get the Notes installer to launch when the managed workspace shebang had completed its file copy. It turns out that under certain circumstances, the variables which have been inserted by the installer into ~/.bash_profile aren’t read later on, whereupon Notes startup silently fails. I fixed that by creating a small launcher, which ought to simplify things, and which allows ~/.bash_profile to be rid of all the IBM stuff.

#!/bin/sh
# Notes launcher by JPM

# Next is path to IBM Workplace Managed Client
IBMWMC="$HOME/IBM"
NOTESDIR=$HOME/notes


CLASSPATH="${NOTESDIR}:$CLASSPATH"
export CLASSPATH

PATH="${NOTESDIR}/jvm/bin":"${NOTESDIR}":${PATH}
export PATH

NOTESDATA="${NOTESDIR}/data"
export NOTESDATA

NOTESBIN="${NOTESDIR}"
export NOTESBIN

LD_LIBRARY_PATH="${NOTESDIR}/jvm/bin/classic":\
	"${NOTESDIR}/jvm/bin":\
	"${NOTESDIR}":\
	${LD_LIBRARY_PATH}
export LD_LIBRARY_PATH

# Ok, go!
"${IBMWMC}/rcp/richclient" \
    -personality com.ibm.workplace.noteswc.standalone.linux.personality 

More good resources can be found at Lotus Notes on Linux, Chris Whisonant’s Lotus Notes 7.0.1 for Linux, and HOWTO: Install & setup Lotus Notes for Linux on the Ubuntu Forums.