Hello,
even though the 3.5.0 readme file says that ovftool support Redhat 5.x it needs some newer libraries that are not provided with Redhat 5.1.
The tool needs GLIBCXX_3.4.9 and GLIBCXX_3.4.11 while the latest in Redhat 5.1 are:
$ strings /usr/lib/libstdc++.so.6 | grep GLIBCXX
GLIBCXX_3.4
GLIBCXX_3.4.1
GLIBCXX_3.4.2
GLIBCXX_3.4.3
GLIBCXX_3.4.4
GLIBCXX_3.4.5
GLIBCXX_3.4.6
GLIBCXX_3.4.7
GLIBCXX_3.4.8
GLIBCXX_FORCE_NEW
Is there something that I am missing? Maybe ovftool 3.0.2 will work (if it supports vcenter 5.x) but I don't know from where to download it...