VirtualBox RPM dependencies not complete

[Dan Clark]

When installing VirtualBox-4.0-4.0.10_72479_rhel5-1 in a kickstart installation I get the following error in the install.log file:

======================================================================================

Installing VirtualBox-4.0-4.0.10_72479_rhel5-1.i386
warning: VirtualBox-4.0-4.0.10_72479_rhel5-1: Header V4 DSA signature: NOKEY, key ID 98ab5139
/etc/init.d/vboxdrv: line 36: /sbin/modprobe: No such file or directory
/etc/init.d/vboxdrv: line 87: /etc/init.d/functions: No such file or directory
/etc/init.d/vboxballoonctrl-service: line 91: /etc/init.d/functions: No such file or directory
/etc/init.d/vboxweb-service: line 91: /etc/init.d/functions: No such file or directory
error: %post(VirtualBox-4.0-4.0.10_72479_rhel5-1.i386) scriptlet failed, exit status 1

======================================================================================

This indicates that there are tools that the VirtualBox RPM relies on but does not list in it's spec file which means they are not guaranteed to be present.