Some user data, such as user home directories and temporary files, are not tracked by the RPM database. This data will not be migrated automatically. To assist you with migrating the data, the module has generated the following four files:

* The [link:kickstart/untrackedsystem] file lists the regular files on the system that will not be migrated. The list does not contain files mounted over the network, files created by runtime system operations, files in temporary locations, and user files in the /home/ or /root/ directory.

* The [link:kickstart/untrackeduser] file lists the regular local files in the /home/ and /root/ directories that will not be migrated. If the /home/ and /root/ directories are on a file system mounted over the network, this file might be empty.

* The [link:kickstart/untrackedexpected] file lists the regular files and symlinks created by runtime system operations (for example handling runlevels, alternatives, and active SELinux modules). Most likely you do not need to care about them, the list is available just for the sake of completeness.

* The [link:kickstart/untrackedtemporary] file lists all temporary local files on the system that will not be migrated. This is essentially everything in the /cgroup/, /tmp/, and /var/ directories. Most likely you do not need to care about them, list is available just for the sake of completeness.

It is recommended that you back up all data before proceeding with the upgrade to Red Hat Enterprise Linux 7. This data can be quite large.

This data must be backed up to another storage medium. You will need to copy the data you wish to have on the new installation back into place after the migration is completed. Configuration files and other data should be reviewed to determine if any modifications are needed for the use with Red Hat Enterprise Linux 7.
