Greetings Harley, thank you for the reply. I do not understand why I may need to do a vgchange. After IPL I do a lvchange to make the lvm volumes active. This works and I am able to mount these lvm volumes. A reboot is done and the devices become inactive again. I try fsck with a backup superblock to fix the lvm volumes. Error are found and I am asked to fix them. I reply "yes" but if I rerun the fsck utility the same problems are found!