Saw this on Moshix Mainframe Channel. He has a prebuilt tk4- with the mod. However I’ve added some volumes so I needed to find out what they were. So I did a before and after directory list. Then I sorted it. Finally I did a diff on the sorted lists and found I added WRK142.142 which I foolishly didn’t document in the tk4-.cnf. I have now. I also I added, a added.txt in the dasd directory. I also added 4 volumes to the cbt_dasd.cnf which I forgot about.