I am preparing to upgrade from 4.6.7 (from source) to current 4.7.5. I have completed other version upgrades in the past and have not experienced this event. I have two (2) DC running as domain controllers properly replicating each to each other. On the (non-FSMO) DC I ran this to check the db and got: root at dc07:~# samba-tool dbcheck --cross-ncs Checking 3546 objects NOTE: old (due to rename or delete) DN string component for lastKnownParent in object CN=Machine\0ADEL:4e73603c-eea4-49cc-948a-328ad890f046,CN=Deleted Objects,DC=dtshrm,DC=dt - <GUID=b8f60a5c-dc67-4357-8607-c58c2ffb744b>;CN={D734A2C3-228B-4152-8402-A7B390BBBDEB},CN=Policies,CN=System,DC=dtshrm,DC=dt Not fixing old string component When I run the "--fix" I got this: root at dc07:~# samba-tool dbcheck --cross-ncs --fix Checking 3546 objects NOTE: old (due to rename or delete) DN string component for lastKnownParent in object CN=Machine\0ADEL:4e73603c-eea4-49cc-948a-328ad890f046,CN=Deleted Objects,DC=dtshrm,DC=dt - <GUID=b8f60a5c-dc67-4357-8607-c58c2ffb744b>;CN={D734A2C3-228B-4152-8402-A7B390BBBDEB},CN=Policies,CN=System,DC=dtshrm,DC=dt Change DN to <GUID=b8f60a5c-dc67-4357-8607-c58c2ffb744b>;cn={D734A2C3-228B-4152-8402-A7B390BBBDEB}\0ADEL:b8f60a5c-dc67-4357-8607-c58c2ffb744b,CN=Deleted Objects,DC=dtshrm,DC=dt? [y/N/all/none] Not fixing old string component There are four of these "NOTE: old (due to rename or delete) . . ." events in total to correct. I am only listing one here for brevity. For now, I have accepted the default "N" answer and left things alone (for all four events.) My first question is simply what is happening here and should I simply answer "yes" to correct each incident? I am unsure how to proceed because I am uncertain what these "NOTE: old (due to rename or delete) . . ." events mean? -- Thank you. Bob Wooden