Yes, I would suspect it is either a kernel issue or in the mount/umount
tools.
In the mean time, since I believe your spin-down method works as well as
unmount-mount-unmount and also leaves the drive spun down, I have
modified your script a bit to automatically determine from /etc/mtab
which physical device has been assigned to the drive. This is because I
sometimes have other things like card readers plugged in and cannot be
sure that the passport will always be at the same /dev/sdxxx location
every time. This modified script requires, however, that the mount
point always be the same, and since "/media/disk" is the default, I
chose "/media/wdp". You can set this in the settings for the drive by
right-clicking on the drive icon.
------------------------------
#!/bin/sh
#
# Script to unmount western digital passport drive safely regardless
# of which physical device it has been assigned to. Drive mount
# point must be /media/wdp, which can be specified in the settings for
# the drive.
#
# Original by Clem-Vangelis, modified by D. Rosky, 2007/6/14
#
# See if drive is mounted
CCOUNT=$(grep '/media/wdp' /etc/mtab | wc -c)
if [ $CCOUNT -eq 0 ]
then
zenity --error --title="Info" --text="No mountpoint /dev/wdb, drive not
mounted?"
exit
fi
#Get the physical device from mtab
DRIVELINE=$(grep '\/media\/wdp' /etc/mtab)
LENG=$(expr match "$DRIVELINE" '[A-Za-z0-9\/]*')
DRIVE_DEVICE=$(expr substr "$DRIVELINE" 1 $LENG)
#Try Unmounting the drive
pumount /media/wdp
sleep 3
CCOUNT=$(grep '/media/wdp' /etc/mtab | wc -c)
if [ $CCOUNT -ne 0 ]
then
zenity --error --title="Info" --text="Could not unmount /media/wdp,
drive may be in use."
exit
fi
#sync and stop the drive
sdparm --command=sync $DRIVE_DEVICE
sleep 1
sdparm --command=stop $DRIVE_DEVICE
zenity --info --title="Info" --text="Drive can be safely unplugged"
--
not proper dismounting for WD passport harddrive (making noise when unplug)
https://bugs.launchpad.net/bugs/117713
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