Examples of a system and method are disclosed herein. An example of the system includes a first computer having a port and a first operating system to execute on the first computer. The system also includes a second computer coupled to the port of the first computer to receive power from the first computer, the second computer having a second operating system to simultaneously execute on the second computer. The system additionally includes a circuit to selectively switch between a first context supported by the first operating system of the first computer and a second context supported by the second operating system without waiting to save the first and second contexts.

In one example, a method may include generating, by a computing device, a volume as a file in memory, where the volume may be based on an operating system (OS) image. The method may include attaching the file to a workload, booting the workload using the OS image, generating a version of the file with at least one block that underwent change and metadata associated with the change based on an input/output request to the volume, storing, by the computing device, the file and the version of the file on a storage device associated with the computing device, and recovering a version of the volume associated with the workload using the file and the version of the file stored in the storage device.

Embodiments are disclosed that relate to multi boot mobile phone devices. In one example, a mobile phone device comprises one or more non-volatile storage devices including an empty partition, a blob partition storing two or more operating systems in a compressed format, a boot selection module configured to recognize user selection of at least one of the two or more operating systems, and a boot allocation module configured to, responsive to user selection of at least one of the two or more operating systems, split the empty partition into a different operating system partition for each selected operating system, decompress each selected operating system, and store each decompressed operating system on its respective operating system partition.

A method includes identifying, from among nodes within a multi-node system, a node that has a security setting satisfying a security setting criteria, booting the multi-node system with the identified node as the primary node, and operating the multi-node system using the security setting of the identified node. Accordingly, the method may provide dynamic selection of a primary node based upon the security setting criteria and the security settings of the nodes within the multi-node system. Optionally, the security setting of each node is stored in a trusted platform module. In non-limiting examples, the security setting criteria may be the highest security setting among all nodes within the multi-node system or a predetermined minimum security setting, such as a trusted execution technology setting.

A dual-system device and a method for displaying an application thereof, and a storage medium are provided. The dual-system device is configured with a first operating system and a second operating system, a first daemon is configured in the first operating system, and a second daemon is configured in the second operating system. The method includes: completing registration of a first application and generating a first registration list in the first daemon, the first application being an application in the first operating system; acquiring the first registration list of the first operating system from the first daemon by using the second daemon; and displaying the first application in the second operating system based on the first registration list.

Process core isolation for execution of multiple operating systems on a multicore computer system includes booting first and second operating systems (OSs) on a computer system that includes a plurality of processor cores across physical central processing unit(s) (CPUs). Booting the first OS boots the first OS on a first subset of the processor cores. Booting the second OS, different from the first OS, boots the second OS on a second subset of the processor cores. The first and second subsets are mutually exclusive, where a first processor core of a physical CPU of the physical CPUs is included in the first subset and a second processor core of the physical CPU is included in the second subset, and where the first and second OSs execute concurrently on the computer system, and each of the first and second OS executes on only its respective subset of processor core(s).

A system to facilitate operating system (OS) installation is described. The system includes a server and rack controller, including one or more processors to generate an imaging service comprising an OS image container, transmit data via a first network to initiate a boot up process at a server and download an OS image included in the OS image container via a second network, wherein the second network is separate from the first network.

Systems and methods for managing boot device orders for computing devices are disclosed. A device management module may use boot metadata to provide a common syntax/format for a user to indicate a boot order for the computing device. The device management module may determine the appropriate commands for a particular type of computing device and use the appropriate commands to set the boot order of the computing devices to the desired boot order.

A portable device having a key is interfaced to a host computing device. The host computing device detects the key on the portable device and authenticates a user for using the key. A boot is forced of the host computing device and during the boot a customized image of an Operating System (OS) for the host computing device is loaded into volatile memory of the host computing device and customized security settings are applied to the OS based on a value of the key.

A system to facilitate operating system (OS) installation is described. The system includes a server and rack controller, including one or more processors to generate an imaging service comprising an OS image container, transmit data via a first network to initiate a boot up process at a server and download an OS image included in the OS image container via a second network, wherein the second network is separate from the first network.