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Anecdotal evidence suggests that, in low-resource settings, providing employment is a common way to redistribute wealth and share earnings. In this paper, we explore the existence and the determinants of social pressure to provide employment in rural Uganda.

A clone is a copy of an existing virtual machine. The existing virtual machine is called the parent of the clone. When the cloning operation is complete, the clone is a separate virtual machine — though it may share virtual disks with the parent virtual machine: see Full and Linked Clones).

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  • Now my computer by default successfully connects to Network Bridge network adapter instead of Wi-Fi network adapter but unfortunately an external Virtual Switch in Hyper-V Virtual Switch Manager is not created so I cannot use it in my VM's. Any help is very appreciated. Thank you in advance. Best regards, Donatas.
  • The MACS office is currently being run on a virtual basis. Our employees are complying with state and federal regulations and working from home offices. We strongly recommend using our online Section 609 testing option. MACS employees can be reached Monday through Friday from 8:30am-5pm via email or phone. We are all in this together.
  • VirtualBox for Mac is a virtualization tool that allows you to create virtual machines for Mac OS X, Linux, or Windows running on Mac OS X. VirtualBox for Mac is not available from the App Store.
  • Changes made to a clone do not affect the parent virtual machine. Changes made to the parent virtual machine do not appear in a clone.
  • A clone's MAC address and UUID are different from those of the parent virtual machine.
  • If you want to save the current state of the virtual machine, so you can revert to that state in case you make a mistake, take a snapshot. If you want to make a copy of a virtual machine for separate use, create a clone.

    Why Make a Clone?

    Installing a guest operating system and applications can be time consuming. With clones, you can make many copies of a virtual machine from a single installation and configuration process.

    Clones are useful when you must deploy many identical virtual machines to a group. For example:

  • An MIS department can clone a virtual machine for each employee, with a suite of preconfigured office applications.
  • A virtual machine can be configured with a complete development environment and then cloned repeatedly as a baseline configuration for software testing.
  • A teacher can clone a virtual machine for each student, with all the lessons and labs required for the term.
  • With clones you can conveniently make complete copies of a virtual machine, without browsing a host file system or worrying if you have located all the configuration files.

    Full and Linked Clones

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    There are two types of clone:

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  • A full clone is an independent copy of a virtual machine that shares nothing with the parent virtual machine after the cloning operation. Ongoing operation of a full clone is entirely separate from the parent virtual machine.
  • A linked clone is a copy of a virtual machine that shares virtual disks with the parent virtual machine in an ongoing manner. This conserves disk space, and allows multiple virtual machines to use the same software installation.
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    Full Clones

    A full clone is an independent virtual machine, with no need to access or maintain an ongoing connection to the parent virtual machine. Because a full clone does not share virtual disks with the parent virtual machine, full clones generally perform better than linked clones. However, full clones take longer to create than linked clones. Creating a full clone can take several minutes if the files involved are large.

    Linked Clones

    A linked clone is made from a snapshot of the parent. (See Understanding Snapshots.) All files available on the parent at the moment of the snapshot continue to remain available to the linked clone. Ongoing changes to the virtual disk of the parent do not affect the linked clone, and changes to the disk of the linked clone do not affect the parent.

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    A linked clone must access the parent. Without access to the parent, a linked clone is disabled. See Linked Clones and Access to the Parent Virtual Machine

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    Linked clones are created swiftly, so you can easily create a unique virtual machine for each task you have. You can also easily share a virtual machine with other users by storing the virtual machine on your local network, where other users can quickly make a linked clone. This facilitates collaboration: for example, a support team can reproduce a bug in a virtual machine, and an engineer can quickly make a linked clone of that virtual machine to work on the bug.