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VirtualBox supports both Intel's VT-x and AMD's AMD-V hardware-assisted virtualization. Making use of these facilities, VirtualBox can run each guest VM in its own separate address-space; the guest OS ring 0 code runs on the host at ring 0 in VMX non-root mode rather than in ring 1. [citation needed]
libguestfs is a C library and a set of tools for accessing and modifying virtual disk images used in platform virtualization.The tools can be used for viewing and editing virtual machines (VMs) managed by libvirt and files inside VMs, scripting changes to VMs, creating VMs, and much else besides. [3]
In theory, a virtual machine is a "completely isolated guest operating system installation within a normal host operating system", [2] but this isn't always the case in practice. For example, in 2008, a vulnerability ( CVE - 2008-0923 ) in VMware discovered by Core Security Technologies made VM escape possible on VMware Workstation 6.0.2 and 5.5.4.
On 10 September 2019 CentOS deferred CentOS 8.1 work for CentOS 7.7 since CentOS 7.x was in production and CentOS 8.x was not in production. Once CentOS 7.7 was released resources moved back to CentOS 8.0. On 24 September 2019 CentOS officially released CentOS version 8.0. Since CentOS was discontinued at the end of 2021, its final release was ...
CentOS Stream is a community enterprise Linux distribution that exists as a midstream between the upstream development in Fedora Linux and the downstream development for Red Hat Enterprise Linux. [3] CentOS Stream is being used by Meta Platforms (known for Facebook and WhatsApp ) [ 4 ] [ 5 ] and Twitter .
VirtualBox uses the term "Guru Meditation" for severe errors in the virtual machine monitor, for example caused by a triple fault in the virtual machine. E23 displays a "Guru Meditation" and restarts when severe errors occur.
It was available until 2015-10-30 as a US$9.99 add-on (and before 2013-01-31 as a promotional free add-on) from Microsoft's now discontinued Windows 8 Feature Packs web site [18] [19] and through the now discontinued Add features to Windows 8 service for Windows 8 Pro (via the Media Center Pack) and Windows 8 core edition (via the Pro Pack ...