trying to make mksysb tapes for DRM test but gives error any idea?
# mksysb -iXm /dev/rmt0

Creating information file (/image.data) for rootvg..

Creating tape boot image.mkfs: mkfs: 0506-209 The vfs type specified is not reco
gnized.


0301-155 bosboot: mkfs failed for /tmp/Bootram.fs.

0512-016 mksysb: Attempt to create a bootable tape failed:
        bosboot -d /dev/rmt0.1 -a failed with return code 42.