I used content db approach for migrating sharepoint 2010 from one server to another.
1.i created new web application on target server. 2.Installed all WSP's on target server. 3. Test-spcontentdatabase powershell( No errors). 4. Mounted database to new web application successfully.
when i go in central admin, change site collection administrator, i can see both site collection which should be but i am unable to select root site collection. when i select it, it doesn't show any details as well but i can select other site collection which resides at wildcard \sites.