> > It seems you already got what you want : just verify you have that > /udev/$wwid node. > > > > How are you making this node? For me the dm sysfs name is dm-* (dm does > not look like it currently supports passing a uuid to alloc_dev which > sets the gendisk name), so udev is making dm-*. Is multipath or > libdevmapper making it or is it udev? dmsetup ls does show the wwid though. > -- :) I got greg to add a rule in the default udev.rules : # create a symlink named after the device map name # note devmap_name comes with extras/multipath KERNEL="dm-[0-9]*", PROGRAM="/sbin/devmap_name %M %m", NAME="%k", SYMLINK="%c" devmap_name is packaged with multipath-tools. regards, cvaroqui