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UForge White Box Migration

Written by Elaine Muus - 25 february 2015

The goal of white box migration is to change the contents found during the scan of the live system prior to migration.

White box migration is not supported for Windows.  

To carry out a white box migration, the user must import the scan report as an appliance template.  The import process basically transforms the meta-data of the scan report to an appliance template.

As part of this transformation process, the scan information is mapped to one or more of the appliance template layers as follows:
  • Native packages that have been analyzed by the scan process and correctly found in one of UForge package repositories are added to the OS Profile.
  • Native packages that have been analyzed by the scan process and NOT found in any of UForge's package repositories are added to a My Software component.
  • All other files (including configuration files) that are not part of a native package are added to a My Software component.
  • Partitioning table information is added to the Install Profile
  • Root and user passwords are added to the Install Profile (encrypted)
  • Timezone is added to the Install Profile
  • Keyboard is added to the Install Profile
  • Kernel parameters are added to the Install Profile
  • Users and groups are added to the Install Profile
Note: In the current version of UForge, SELinux settings are not provided as part of the Install Profile.  Any SELinux settings are “lost” at this stage.  
 

new scan

Once the scan report has been imported as an appliance template, you can update the content prior to generating a machine image.
 
The generation process is slightly different between black box and white box migration.  For white box migration, UForge does not generate a machine image from a scan report, rather from an appliance template.  You can add and remove packages at will from the OS Profile layer.  Consequently package dependencies are calculated using the list of packages in the OS Profile.  Any missing packages form the OS Profile are added prior to generating the machine image.  
 

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