Now before going forward we need to be sure all requirements here have been met:
"Recommended Hardware
OpenMandriva Lx 3.01 requires at least 2.0 GB of memory (min 1,5GB), at least 10 GB of hard drive space (see below for known issues with partitioning).
If you wish to run the live distribution (the option to Start OpenMandriva Lx at the CD boot screen), you must have at minimum 1.5 GB of memory. At least 2 GB of memory is recommended for optimal performance.
Release is available for x86_64 architecture, The i586 and ARM architectures are being worked on, but are not yet available for this release.
Important Note
The KDE Plasma Desktop requires a 3D graphics card that supports OpenGL 2.0 or above
Virtual Machines
The same hardware requirements apply when running in virtual machines.
For VirtualBox, however, you must ALWAYS have at least 1536 MB of memory or OpenMandriva Lx will fail to boot. Please ensure that VirtualBox is configured with “Enable PAE/NX” This option can be found under the System>Processor tab.
Also for VirtualBox you must install to a fresh VM, as trying to install to an existing one may fail. This recent problem is being investigated.
Note that if you use qemu, you may need to select an alternative graphics driver other than your distribution default or you will boot to a black screen."
Though my best guess is that if can run the ISO in ‘Live’ then this isn’t an issue. But we need to be sure especially about having enough RAM, 2GB or more is even better and that “Enable PAE/NX” is selected. Also / partition size in VBox needs to be at least 8GB. A little more is even better (I’m currently using 9.2GB for /).