T. Horsnell wrote: > FC6 - kernel 2.6.18-1.2798.fc6 - udev-095-14 > > I'm trying to develop some rules to give me device-name > persistence on my SCSI disks. I have a couple of test rules: > > BUS=="scsi", PROGRAM="/sbin/scsi_id -g -u" > RESULT=="20004cffffe0e0976", NAME="dsk0_%n", OWNER="root", GROUP="root", MODE="0700" > RESULT=="SSEAGATE_ST336807LC_3KT0CTTM00007530YTR2", NAME="dsk1_%n", OWNER="root", GROUP="root", MODE="0700" > > With these rules disabled, I get: > <-------------[ SNIP ]---------------------------> > Why have I got both sd devices and dsk devices? > And what is the second line? > Why have I got an entry: > crw------- 1 root root 21, 0 Nov 28 11:45 /dev/dsk0_0 > > This looks like a generic device, but if so, why only one? > And where are the normal sg devices? > > <-------------[ SNIP ]---------------------------> > > > Is this all as expected? > Am I going to be screwed later on if I need to do something > that requires a generic SCSI device for a particular disk? > Why do I still get /dev/sd* entries? > Any clues anyone? > > Cheers, > Terry. > > Unless you use OPTIONS="last_rule" in your rule, both your rule and the default rule will be used. So you will end up with both sets of device entries. Now, as for the order problem, you may need to change the program from "/sbin/scsi_id -g -u" to "/sbin/scsi_id -d %N -s %p" or "/sbin/scsi_id -d %N -s %p -g -u". What I suspect is happening is that scsi_id is not returning what you expect. From the scsi_id man page: scsi_id is one of the tools used in the "Linux Persistent Device Names" scheme that creates persistent device links in /dev/disk. It is called with the -x option which will print all values in a defined format to let udev import it into its own environment for later event processing. An example custom udev rule using scsi_id, that will name a block device and any partitions for the device matching the scsi_id output of 312345: BUS=="scsi", PROGRAM=="/sbin/scsi_id -d %N -s %p", RESULT=="312345", NAME="disk%n" Mikkel -- Do not meddle in the affairs of dragons, for thou art crunchy and taste good with Ketchup!
