You can run a Layer Dry Run report to compare the content of the layers and the CVD before applying a layer update to a CVD or collection of CVDs. This report provides a method to detect unforeseen effects, and resolves conflicts that might result from any mismatch between the CVD and the layers content.

About this task

Table 1. Types of Conflict Described in the Report

Conflict Type


Base Layer Application Downgrades a user installed application

An application installed in the base layer uses an older version of shared components than another user installed application uses.

Base Layer Application Downgrades OS component

An application installed in the base layer downgrades OS components.

Base Layer OS Components downgrades user installed application

OS components in the base layer downgrades shared components that are used by a user installed application.

You can generate this report in two ways:

Table 2. Types of Layer Dry Run Report

Report Type


Application-level report

Describes projected applications that are added to, updated in, or deleted from to an endpoint device when the selected layer changes are applied. It compares the applications installed on the layers and the CVD and provides a general view of the result for the change in layers. For more information, see 16.2 Comparison Report between Base Layer and CVD.

Program Executable (PE) level report

Analyzes the outcome of removing or updating a PE file. It projects affected software modules, such as .DLL files, when a base layer is downloaded to an endpoint device client, and details whether each affected module is downgraded.


Depending on the number of CVDs selected, running the report might take some time.


  1. In the Mirage Management console tree, under the Reports tree, click the report type that you want to generate or view.
  2. To generate a dry run report:
    1. Click the Generate Report icon on the report toolbar.
    2. Type a report name in the Report Name text box.
    3. Select a CVD and click Select , and click Next.

      To deselect a CVD, click Remove. To deselect all CVDs, click Clear.

    4. Select a base layer option.

      Select No change to target base layer, or Select Base layer from list and select a base layer, and click Next.

    5. Select app layers to be included in the report.
    6. Click Finish.

      The report is generated. You can view the report when the status is Done.

  3. To view a report that was generated:
    • Click the View Report icon on the report list toolbar.

      The report appears as an HTML page.

  4. To delete a report:
    1. On the report list, select the report you want to delete.
    2. Click the Delete icon on the report console toolbar.