Domino ../linux/startup script evaluates Red Hat 5.3 as Red Hat 3

"/usr/bin/whoami: error while loading shared libraries: libc.so.6: cannot open shared object file: No such file or directory
expr: error while loading shared libraries: libc.so.6: cannot open shared object file: No such file or directory
Could not backup notes.ini
stty: error while loading shared libraries: libc.so.6: cannot open shared object file: No such file or directory"

------------------------section from script---------------------------------

# SPR #KBRN5T2R8U
# Flag needed to force JVM to use dynamic stacks on RHAS 2.1 - no affect on other distros
# Bug in JVM behavior that if we set this on RHAS3.0 it causes problems when should not, so
# making it RHAS 2.1 specific - ugly though. Also need to set LD_ASSUME_KERNEL=2.4.19 on RHAS 3.0
#

version=`cat /etc/issue | grep -i "red" | egrep "Enterprise|Advanced" | awk '{print $7}' `
version3=`echo $version | grep "3" | sed -e 's/.*3.*/3/'`
version2=`echo $version | grep "2" | sed -e 's/.*2\.1.*/2.1/'`
if [ ! -z ${version3} ]; then
if [ ${version3} = "3" ]; then
LD_ASSUME_KERNEL=2.4.19
export LD_ASSUME_KERNEL
fi
else
if [ ! -z ${version2} ]; then
if [ ${version2} = "2.1" ]; then
IBM_USE_FLOATING_STACKS=1
export IBM_USE_FLOATING_STACKS
fi
fi
fi