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This is the first step in the effort of combining all documentation about bootstrap-vz into sphinx while still being able to access it from github (github can parse rst as well)
37 lines
1.5 KiB
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37 lines
1.5 KiB
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minimize size
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-------------
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This plugin can be used to reduce the size of the resulting image. Often
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virtual volumes are much smaller than their reported size until any data
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is written to them. During the bootstrapping process temporary data like
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the aptitude cache is written to the volume only to be removed again.
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The minimize size plugin employs three different strategies to keep a
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low volume footprint:
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- Mount folders from the host into key locations of the image volume to
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avoid any unneccesary disk writes.
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- Use `zerofree <http://intgat.tigress.co.uk/rmy/uml/index.html>`__ to
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deallocate unused sectors on the volume. On an unpartitioned volume
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this will be done for the entire volume, while it will only happen on
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the root partition for partitioned volumes.
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- Use
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`vmware-vdiskmanager <https://www.vmware.com/support/ws45/doc/disks_vdiskmanager_eg_ws.html>`__
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to shrink the real volume size (only applicable when using vmdk
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backing). The tool is part of the `VMWare
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Workstation <https://my.vmware.com/web/vmware/info/slug/desktop_end_user_computing/vmware_workstation/10_0>`__
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package.
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Settings
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~~~~~~~~
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- ``zerofree``: Specifies if it should mark unallocated blocks as
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zeroes, so the volume could be better shrunk after this.
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Valid values: true, false
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Default: false
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*``optional``*
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- ``shrink``: Whether the volume should be shrunk. This setting works
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best in conjunction with the zerofree tool.
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Valid values: true, false
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Default: false
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*``optional``*
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