openstack/diskimage-builder
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diskimage-builder/diskimage_builder/elements/replace-partition/README.rst
Steve Baker 835a2468dc New elements replace-partition(-redhat) 
replace-partition
-----------------
A standalone element which consumes a base image which was created with
``diskimage-builder`` and rebuilds it without making any packaging changes. This
allows the image contents to be copied to a new block device layout. Use cases
for this element include:

* Rebuilding a whole-disk image with a different partition layout by setting
  ``DIB_BLOCK_DEVICE_CONFIG``
* Rebuilding a whole-disk image with the same partitions but with the sector
  size increased to 4096 bytes

replace-partition-redhat
------------------------

A redhat family specific version of the ``replace-partition`` element.

Change-Id: I7399c4bf6a4d6acfef43f871df0a40e2961ed44e
2024-09-04 09:30:30 +12:00

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replace-partition

A standalone element which consumes a base image which was created with diskimage-builder and rebuilds it without making any packaging changes. This allows the image contents to be copied to a new block device layout. Use cases for this element include:

  • Rebuilding a whole-disk image with a different partition layout by setting DIB_BLOCK_DEVICE_CONFIG
  • Rebuilding a whole-disk image with the same partitions but with the sector size increased to 4096 bytes

See element replace-partition-redhat for a full example of how to use this element

Arguments

The following arguments are mandatory and should be set to the correct values as for other distro elements:

  • DISTRO_NAME
  • DIB_RELEASE
  • EFI_BOOT_DIR
  • DIB_INIT_SYSTEM
  • DIB_BLOCK_DEVICE
  • DIB_LOCAL_IMAGE

DIB_SOURCE_BLOCK_SIZE can be set to 4096 if the base image DIB_LOCAL_IMAGE was created with a 4096 byte sector size.