Hello everybody,
We found the problem !!!
By default, BlueOnyx (and perhaps other distribution) disabled the noexec right on the /tmp.
... ... ...
/dev/mapper/VolGroup00-tmp on /tmp type ext3 (rw,noexec,nosuid)
... ... ...
The Vmware Converter copy files vmware-sysinfo-lin32.tar or vmware-sysinfo-lin64.tar depending the architecture using root login on the /tmp directory if remote server is Linux.
This 2 files are stored C:\Program Files (x86)\VMware\VMware vCenter Converter Standalone\.
After, Vmware untar one on this files and execute the bash script.
If /tmp is mount this noexec the script can't be executed.
Using this command, you can update the partition rights with keeping the mounting : mount -o remount,exec /tmp .
I hope this thing will help you !! ;-)
Have a nice day.
Matt