Comment 7 for bug 335767

I believe this USB stick is /dev/sdb, but

root@ltsp200:~# udevadm test /dev/sdb
run_command: calling: test
udevadm_test: version 139
This program is for debugging only, it does not run any program,
specified by a RUN key. It may show incorrect results, because
some values may be different, or not available at a simulation run.

parse_file: reading '/lib/udev/rules.d/40-alsa.rules' as rules file
parse_file: reading '/lib/udev/rules.d/40-ia64.rules' as rules file
parse_file: reading '/lib/udev/rules.d/40-infiniband.rules' as rules file
parse_file: reading '/lib/udev/rules.d/40-isdn.rules' as rules file
parse_file: reading '/lib/udev/rules.d/40-pilot-links.rules' as rules file
parse_file: reading '/lib/udev/rules.d/40-ppc.rules' as rules file
parse_file: reading '/lib/udev/rules.d/40-xserver-xorg-input-wacom.rules' as rules file
parse_file: reading '/lib/udev/rules.d/40-zaptel.rules' as rules file
parse_file: reading '/lib/udev/rules.d/45-fuse.rules' as rules file
parse_file: reading '/lib/udev/rules.d/50-firmware.rules' as rules file
parse_file: reading '/lib/udev/rules.d/50-udev-default.rules' as rules file
parse_file: reading '/lib/udev/rules.d/60-cdrom_id.rules' as rules file
parse_file: reading '/lib/udev/rules.d/60-persistent-input.rules' as rules file
parse_file: reading '/lib/udev/rules.d/60-persistent-serial.rules' as rules file
parse_file: reading '/lib/udev/rules.d/60-persistent-storage-tape.rules' as rules file
parse_file: reading '/lib/udev/rules.d/60-persistent-storage.rules' as rules file
parse_file: reading '/lib/udev/rules.d/60-persistent-v4l.rules' as rules file
parse_file: reading '/lib/udev/rules.d/61-persistent-storage-edd.rules' as rules file
parse_file: reading '/lib/udev/rules.d/64-device-mapper.rules' as rules file
parse_file: reading '/lib/udev/rules.d/65-dmsetup.rules' as rules file
parse_file: reading '/etc/udev/rules.d/70-persistent-cd.rules' as rules file
parse_file: reading '/etc/udev/rules.d/70-persistent-net.rules' as rules file
parse_file: reading '/lib/udev/rules.d/75-cd-aliases-generator.rules' as rules file
parse_file: reading '/lib/udev/rules.d/75-persistent-net-generator.rules' as rules file
parse_file: reading '/lib/udev/rules.d/79-fstab_import.rules' as rules file
parse_file: reading '/lib/udev/rules.d/80-drivers.rules' as rules file
parse_file: reading '/lib/udev/rules.d/80-ltspfsd.rules' as rules file
parse_file: reading '/lib/udev/rules.d/85-alsa-utils.rules' as rules file
parse_file: reading '/lib/udev/rules.d/85-hdparm.rules' as rules file
parse_file: reading '/lib/udev/rules.d/85-hwclock.rules' as rules file
parse_file: reading '/lib/udev/rules.d/85-ifupdown.rules' as rules file
parse_file: reading '/lib/udev/rules.d/85-regulatory.rules' as rules file
parse_file: reading '/lib/udev/rules.d/90-hal.rules' as rules file
parse_file: reading '/lib/udev/rules.d/95-udev-late.rules' as rules file
udev_rules_new: rules use 15924 bytes tokens (1327 * 12 bytes), 10383 bytes buffer
udev_rules_new: temporary index used 11540 bytes (577 * 20 bytes)
unable to open device '/sys/dev/sdb'
root@ltsp200:~#

Then I found this:

http://linux.derkeiler.com/Mailing-Lists/Debian/2008-11/msg01398.html

So I try this one.

root@ltsp200:~# udevadm test $(udevadm info --query=path --name /dev/sdb) | grep -E 'get_name|symlink'

And then this:

root@ltsp200:~# udevadm test /devices/pci0000:00/0000:00:1d.7/usb5/5-2/5-2:1.0/host10/target10:0:0/10:0:0:0/block/sdb

Both output are in attachment: udevadm_test_dev_sdb.txt

Hope this helps, Asmo Koskinen.