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Rump kernels provide free, portable, componentized, kernel quality drivers such as file systems, POSIX system call handlers, PCI device drivers, a SCSI protocol stack, virtio and a TCP/IP stack. These drivers may be integrated into existing platforms or entirely new systems can be built around them. As a full-stack solution based on rump kernels, we offer the rumprun unikernel which can be used run existing POSIX'y software directly on both raw hardware and cloud hypervisors such as KVM and Xen.
The book Design and Implementation of the Anykernel and Rump Kernels describes the fundamental operating principles and terminology of rump kernels. Further technical and user-oriented information is available on the wiki. If you cannot find the answers from the above sources, free support is available via the community. You can also hire consultants for commercial support.