Paul Howarth wrote:
Aren't the tape and the autochanger using different SCSI IDs or LUNs?
Yes, they are. Autochanger is SCSI ID 0, tape is SCSI ID 1. The tape gets /dev/st0* and /dev/nst0* on boot, and udev also creates couple of symbolic links for it. Once I do "modprobe sg", /dev/sg1 is additionally created for tape (different major device number than st* and nst*, of course), and /dev/sg0 for autochanger.
Try this: Manually load the sg module so that the sg devices get created. What do you then get for: $ udevinfo -a -p `udevinfo -q path -n /dev/sg0` and $ udevinfo -a -p `udevinfo -q path -n /dev/sg1`
It gives this for sg0:
looking at class device '/sys/class/scsi_generic/sg0': SYSFS{dev}="21:0"
follow the class device's "device"
looking at the device chain at '/sys/devices/pci0000:00/0000:00:06.0/host0/target0:0:0/0:0:0:0':
BUS="scsi"
ID="0:0:0:0"
SYSFS{detach_state}="0"
SYSFS{device_blocked}="0"
SYSFS{model}="EXB-210 "
SYSFS{queue_depth}="2"
SYSFS{rev}="1.10"
SYSFS{scsi_level}="3"
SYSFS{state}="running"
SYSFS{timeout}="0"
SYSFS{type}="8"
SYSFS{vendor}="EXABYTE "
Right, so this one's the autochanger. Try creating /etc/udev/rules.d/10-custom.rules containing the following line:
BUS="scsi", SYSFS{vendor}="EXABYTE*", SYSFS{model}="EXB-210*", NAME="sg%e", SYMLINK="autochanger%e"
Then see if you get the right device nodes created next time the SCSI card module is loaded.
Paul.
