[ovirt-users] Upgrade problem

Hi everybody, I'm trying to upgrade ovirt to the ovirt 3.5.4 from my current version 3.5.3. But when I try to run engine-setup I got this: [ INFO ] Checking for product updates... Setup has found updates for some packages, do you wish to update them now? (Yes, No) [Yes]: [ INFO ] Checking for an update for Setup... --== ALL IN ONE CONFIGURATION ==-- --== NETWORK CONFIGURATION ==-- Setup can automatically configure the firewall on this system. Note: automatic configuration of the firewall may overwrite current settings. Do you want Setup to configure the firewall? (Yes, No) [Yes]: [ INFO ] firewalld will be configured as firewall manager. --== DATABASE CONFIGURATION ==-- The detected DWH database size is 198 MB. Setup can backup the existing database. The time and space required for the database backup depend on its size. This process takes time, and in some cases (for instance, when the size is few GBs) may take several hours to complete. If you choose to not back up the database, and Setup later fails for some reason, it will not be able to restore the database and all DWH data will be lost. Would you like to backup the existing database before upgrading it? (Yes, No) [Yes]: --== OVIRT ENGINE CONFIGURATION ==-- Skipping storing options as database already prepared --== PKI CONFIGURATION ==-- [ ERROR ] Failed to execute stage 'Environment customization': Command '/bin/openssl' failed to execute [ INFO ] Stage: Clean up Log file is located at /var/log/ovirt-engine/setup/ovirt-engine-setup-20150911181604-1gft67.log [ INFO ] Generating answer file '/var/lib/ovirt-engine/setup/answers/20150911181626-setup.conf' [ INFO ] Stage: Pre-termination [ INFO ] Stage: Termination [ ERROR ] Execution of setup failed Any idea? Kind regards, Koen