Jon LaBadie wrote:

I can attempt to confirm this.  The tar was written before I setup
the stinit definitions.  I can redo the tar using the 32K block
device and see if amtapetype -c complains.

A clarification please, Jean-Louis.  Are you saying that amtapetype
only checks for previous 32K block writes or was the problem I wrote
a tape with a block size different than 32K then tried to read with
a device having a fixed block size.

is larger, but it should succeed if the bs on tape is smaller.
That depend of your OS/driver/drive.

Jean-Louis