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Adopt Existing Partitions

Goals​

By following this how-to guide, you will learn how to adopt existing partitions with Trident, by using Host Configuration.

Instructions​

Step 1: Determine Desired Partitions for Adoption​

Find the desired adoption partitions on your host, either by:

  • Partition labels, using a command like:

    lsblk -o NAME,PARTLABEL

  • UUIDs, using a command like:

    lsblk -o NAME,UUID

Step 2: Add adoptedPartitions Configuration​

Inside the storage section of your Trident Host Configuration, add a new adoptedPartitions section to the disk section containing the partitions you want to adopt. This section should include the partition IDs and their corresponding uniquely identifying labels or UUIDs.

For example:

  storage:
    disks:
      - id: disk-with-partitions-to-adopt
        adoptedPartitions:
          - id: adopted-partition-by-label
            matchLabel: disklabel-part1
          - id: adopted-partition-by-uuid
            matchUuid: 12345678-abcd-1234-abcd-123456789abc

To adopt filesystems from the above partitions:

  filesystems:
    - deviceId: adopted-partition-by-label
      source: adopted
      mountPoint: /adopted-filesystem-by-label
    - deviceId: adopted-partition-by-uuid
      source: adopted
      mountPoint: /adopted-filesystem-by-uuid

With this information, Trident will ensure that these partitions are preserved in the target OS.