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ref-manual: add previous overlayfs-etc variables
These were supported in releases prior to 4.1. (From yocto-docs rev: 86f367fc9946904b5056fb86fb2cc339a0f96b0a) Signed-off-by: Paul Eggleton <paul.eggleton@microsoft.com> Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
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Richard Purdie
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@@ -5187,6 +5187,44 @@ system and gives an overview of their function and contents.
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default by setting the variable in a custom distribution
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default by setting the variable in a custom distribution
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configuration file.
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configuration file.
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:term:`OVERLAYFS_ETC_DEVICE`
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When the :ref:`overlayfs-etc <ref-classes-overlayfs-etc>` class is
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inherited, specifies the device to be mounted for the read/write
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layer of ``/etc``. There is no default, so you must set this if you
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wish to enable :ref:`overlayfs-etc <ref-classes-overlayfs-etc>`, for
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example, assuming ``/dev/mmcblk0p2`` was the desired device::
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OVERLAYFS_ETC_DEVICE = "/dev/mmcblk0p2"
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:term:`OVERLAYFS_ETC_FSTYPE`
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When the :ref:`overlayfs-etc <ref-classes-overlayfs-etc>` class is
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inherited, specifies the file system type for the read/write
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layer of ``/etc``. There is no default, so you must set this if you
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wish to enable :ref:`overlayfs-etc <ref-classes-overlayfs-etc>`,
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for example, assuming the file system is ext4::
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OVERLAYFS_ETC_FSTYPE = "ext4"
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:term:`OVERLAYFS_ETC_MOUNT_OPTIONS`
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When the :ref:`overlayfs-etc <ref-classes-overlayfs-etc>` class is
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inherited, specifies the mount options for the read-write layer.
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The default value is "defaults".
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:term:`OVERLAYFS_ETC_MOUNT_POINT`
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When the :ref:`overlayfs-etc <ref-classes-overlayfs-etc>` class is
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inherited, specifies the parent mount path for the filesystem layers.
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There is no default, so you must set this if you wish to enable
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:ref:`overlayfs-etc <ref-classes-overlayfs-etc>`, for example if
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the desired path is "/data"::
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OVERLAYFS_ETC_MOUNT_POINT = "/data"
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:term:`OVERLAYFS_ETC_USE_ORIG_INIT_NAME`
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When the :ref:`overlayfs-etc <ref-classes-overlayfs-etc>` class is
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inherited, controls how the generated init will be named. For more
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information, see the :ref:`overlayfs-etc <ref-classes-overlayfs-etc>`
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class documentation. The default value is "1".
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:term:`OVERRIDES`
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:term:`OVERRIDES`
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A colon-separated list of overrides that currently apply. Overrides
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A colon-separated list of overrides that currently apply. Overrides
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are a BitBake mechanism that allows variables to be selectively
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are a BitBake mechanism that allows variables to be selectively
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