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42 lines
1.6 KiB
Markdown
42 lines
1.6 KiB
Markdown
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---
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layout: doc
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title: SecondaryStorage
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permalink: /doc/SecondaryStorage/
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redirect_from: /wiki/SecondaryStorage/
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---
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Storing AppVMs on Secondary Drives
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==================================
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Suppose you have a fast but small primary SSD and a large but slow secondary
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HDD. You want to store a subset of your AppVMs on the HDD. In dom0:
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1. `# mv /var/lib/qubes/appvms/my-new-appvm
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/path/to/secondary/drive/my-new-appvm`
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2. `# ln -s /path/to/secondary/drive/my-new-appvm /var/lib/qubes/appvms/`
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Now, `my-new-appvm` will behave as if it were still stored on the primary SSD
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(except that it will probably be slower, since it's actually stored on the
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secondary HDD).
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Known Issues
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------------
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* The above procedure does **not** interfere with [Qubes Backup][]. However,
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attempting to symlink a `private.img` file (rather than the whole AppVM
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directory) is known to prevent the `private.img` file from being backed up.
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The same problem may occur if the above procedure is attempted on a
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[TemplateVM][]. [[1]]
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* After implementing the above procedure, starting `my-new-appvm` will cause
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dom0 notifications to occur stating that loop devices have been attached to
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dom0. This is normal. (No untrusted devices are actually being mounted to
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dom0.) Do not attempt to detach these disks. (They will automatically be
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detached when you shut down the AppVM.) [[2]]
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[Qubes Backup]: https://www.qubes-os.org/doc/BackupRestore/
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[TemplateVM]: https://www.qubes-os.org/doc/Templates/
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[1]: https://groups.google.com/d/topic/qubes-users/EITd1kBHD30/discussion
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[2]: https://groups.google.com/d/topic/qubes-users/nDrOM7dzLNE/discussion
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