Problem: Image mosaicking warning produced by Raster to Geodatabase tool
When converting a single raster to an ArcSDE raster (using the Raster to Geodatabase tool or wizard), a warning is produced:
Image mosaicking is not allowed.
The Raster to Geodatabase tool (and wizard) does not check if the output raster name already exists in the output geodatabase. This warning may be displayed when a duplicate output raster name is used.
Solution or Workaround
See if the output name already exists in the output geodatabase. Start the tool again and use a new and unique output name when executing the tool.