Comment 1 for bug 2002999

Reviewed: https://review.opendev.org/c/starlingx/metal/+/870552
Committed: https://opendev.org/starlingx/metal/commit/ea1b8629e67dcf9a047ad2175e9f720d7190205b
Submitter: "Zuul (22348)"
Branch: master

commit ea1b8629e67dcf9a047ad2175e9f720d7190205b
Author: Shrikumar Sharma <email address hidden>
Date: Mon Jan 16 14:34:12 2023 +0000

    Fix for detection of existing file system in the prestage process

    During prestage with a prestage iso, the existing filesystem must
    not be overwritten if an installation with an install_guid exists,
    when the force_install parameter is not specified.

    However, when logical volumes are used, the check for a valid
    installation does not succeed, resulting in the installer
    overwriting the existing installation.

    This commit fixes this issue by inspecting the volume for an
    installation. This commit also ensures that if an invalid storage
    device is specified for root device, then a failure is reported
    and the system breaks into a bash shell.

    Test Plan:

    PASS: Verify that the installer does not overwrite an existing
    installation with an install_guid.

    PASS: Verify that the installer reports an error and breaks into
    a bash shell if an invalid storage device is specified for root
    device.

    Closes-Bug: 2002999

    Change-Id: I1d4ef10ce741b98455c65467367448e05f37fd64
    Signed-off-by: Shrikumar Sharma <email address hidden>