| 1 | <?xml version="1.0" encoding="UTF-8"?>
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| 2 | <!DOCTYPE topic
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| 3 | PUBLIC "-//OASIS//DTD DITA Topic//EN" "topic.dtd">
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| 4 | <topic xml:lang="en-us" id="sf_mount_auto">
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| 5 | <title>Automatic Mounting</title>
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| 6 |
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| 7 | <body>
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| 8 | <p>
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| 9 | Oracle VM VirtualBox provides the option to mount shared folders
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| 10 | automatically. When automatic mounting is enabled for a shared
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| 11 | folder, the Guest Additions service will mount it for you
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| 12 | automatically. For Windows or OS/2, a preferred drive letter can
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| 13 | also be specified. For Linux or Oracle Solaris, a mount point
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| 14 | directory can also be specified.
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| 15 | </p>
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| 16 | <p>
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| 17 | If a drive letter or mount point is not specified, or is in use
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| 18 | already, an alternative location is found by the Guest Additions
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| 19 | service. The service searches for an alternative location
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| 20 | depending on the guest OS, as follows:
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| 21 | </p>
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| 22 | <ul>
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| 23 | <li>
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| 24 | <p>
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| 25 | <b outputclass="bold">Windows and OS/2 guests.</b>
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| 26 | Search for a free drive letter, starting at
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| 27 | <filepath>Z:</filepath>. If all drive letters are assigned,
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| 28 | the folder is not mounted.
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| 29 | </p>
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| 30 | </li>
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| 31 | <li>
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| 32 | <p>
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| 33 | <b outputclass="bold">Linux and Oracle Solaris
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| 34 | guests.</b> Folders are mounted under the
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| 35 | <filepath>/media</filepath> directory. The folder name is
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| 36 | normalized (no spaces, slashes or colons) and is prefixed
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| 37 | with <filepath>sf_</filepath>.
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| 38 | </p>
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| 39 | <p>
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| 40 | For example, if you have a shared folder called
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| 41 | <filepath>myfiles</filepath>, it will appear as
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| 42 | <filepath>/media/sf_myfiles</filepath> in the guest.
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| 43 | </p>
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| 44 | <p>
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| 45 | The guest properties
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| 46 | <codeph>/VirtualBox/GuestAdd/SharedFolders/MountDir</codeph>
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| 47 | and the more generic
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| 48 | <codeph>/VirtualBox/GuestAdd/SharedFolders/MountPrefix</codeph>
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| 49 | can be used to override the automatic mount directory and
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| 50 | prefix. See <xref href="guestadd-guestprops.dita#guestadd-guestprops"/>.
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| 51 | </p>
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| 52 | </li>
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| 53 | </ul>
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| 54 | <p>
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| 55 | Access to an automatically mounted shared folder is granted to
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| 56 | everyone in a Windows guest, including the guest user. For Linux
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| 57 | and Oracle Solaris guests, access is restricted to members of
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| 58 | the group <codeph>vboxsf</codeph> and the
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| 59 | <codeph>root</codeph> user.
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| 60 | </p>
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| 61 | </body>
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| 62 |
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| 63 | </topic>
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