unmount a removable store automatically before xdm logout.

[peter@easthope.ca]

~/MP is the mount point for a removable store which contains 
sentinel Mounted.  

~$ mount | grep MP 
/dev/sda1 on /home/peter/MP type ext2 (rw,nosuid,nodev,relatime,errors=continue,user_xattr,acl,user=peter)
peter@dalton:~$ ls -l MP/Mounted
-rw-rw-r-- 1 peter peter 11 May 25 15:45 MP/Mounted

This is the draft logout script.

~$ cat mylogout
cd /home/peter
if [ -e MP/Mounted ]; then
  if [ "$(command lsof -Fn MP)" ]; then 
    # Files are open.  Abort logout to allow resolution.
    exit 1
  ELSE 
    umount /home/peter/MP
    # sudo is configured to allow this w/o a password.
    nohup sudo /etc/init.d/xdm restart >/tmp/xdm.restart 2>&1 &
  fi
fi
exit 0

Not sure that "xdm restart" should run in the background.  

Any comment welcome.

Thanks,          ... Peter E.

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Tel +1 360 639 0202  http://carnot.yi.org/  Bcc: peter at easthope. ca