Abstract: A data processing entity that includes a mass memory with a plurality of memory locations for storing memory blocks. Each of a plurality of software images includes a plurality of memory blocks with corresponding image addresses within the software image. The memory blocks of software images stored in boot locations of a current software image are relocated. The boot blocks of the current software image are stored into the corresponding boot locations. The data processing entity is booted from the boot blocks of the current software image in the corresponding boot locations, thereby loading the access function. Each request to access a selected memory block of the current software image is served by the access function, with the access function accessing the selected memory block in the associated memory location provided by the control structure.

Abstract: A data processing entity that includes a mass memory with a plurality of memory locations for storing memory blocks. Each of a plurality of software images includes a plurality of memory blocks with corresponding image addresses within the software image. The memory blocks of software images stored in boot locations of a current software image are relocated. The boot blocks of the current software image are stored into the corresponding boot locations. The data processing entity is booted from the boot blocks of the current software image in the corresponding boot locations, thereby loading the access function. Each request to access a selected memory block of the current software image is served by the access function, with the access function accessing the selected memory block in the associated memory location provided by the control structure.

Abstract: A computer-readable storage medium containing machine executable instructions that when executed by a processor cause the processor to encrypt a virtual disc; wherein the virtual disc comprises a virtual disc image; and wherein execution of the machine executable instructions cause the processor to: receive the virtual disc; increase the size of the virtual disc; write a decryption-master-boot-record and a decryption program to the virtual disc; encrypt at least a portion of the virtual disc image, wherein the decryption program comprises decryption-machine-executable-instructions for decrypting the at least partially encrypted virtual disc image in accordance with a cryptographic key.

Abstract: A data processing entity that includes a mass memory with a plurality of memory locations for storing memory blocks. Each of a plurality of software images includes a plurality of memory blocks with corresponding image addresses within the software image. The memory blocks of software images stored in boot locations of a current software image are relocated. The boot blocks of the current software image are stored into the corresponding boot locations. The data processing entity is booted from the boot blocks of the current software image in the corresponding boot locations, thereby loading the access function. Each request to access a selected memory block of the current software image is served by the access function, with the access function accessing the selected memory block in the associated memory location provided by the control structure.

Abstract: A method, system and computer program product for managing multiple software images in a data processing entity. At least part of the memory blocks of each of the software images is stored into a corresponding image portion of a mass memory. A current software image stored in a current image is selected. The memory blocks stored in boot locations of the current software image are relocated to a relocation portion of the mass memory. The boot blocks of the current software image are copied into the corresponding boot location. The data processing entity is booted from the boot blocks of the current software image in the corresponding boot locations and each request to access a selected memory block of the current software image by the access function is served.