Hi I didn't find anything new about this pb. It is hanging in the scan of the bus while in scan_scsis_single(). I've tried to recompile 2.4.19-pa20 and it works fine ???? So what change beetween 2.4.19 and 2.4.20 in this area ? thanks. -- Vidal Bruno, (770-4271) SSD-HA Team, HP-UX & LINUX Support bruno_vidal@admin.france.hp.com