>Number:         3265
>Category:       bin
>Synopsis:       Unmountable union mount if uniondir is given as a sym link
>Confidential:   no
>Severity:       non-critical
>Priority:       medium
>Responsible:    bin-bug-people (Utility Bug People)
>State:          open
>Class:          sw-bug
>Submitter-Id:   net
>Arrival-Date:   Thu Feb 27 21:05:02 1997
>Last-Modified:
>Originator:     Geoff Wing
>Organization:
Geoff Wing [mason@primenet.com.au]   Technical Manager
  Phone    : +61-3-9818 2977         PrimeNet - Internet Consultancy
  Facsimile: +61-3-9819 3788         Web : <URL:http://www.primenet.com.au/>
  Mobile   : 0412 162 441
>Release:        NetBSD 1.2 [ABC]
>Environment:
System: NetBSD coral.primenet.com.au 1.2B NetBSD 1.2B (CORAL) #8: Fri Jan 31 17:11:02 EST 1997 root@coral.primenet.com.au:/src/netbsd/src/sys/arch/i386/compile/CORAL i386


>Description:
	% mount_union somedir somesymlink
	% umount somesymlink
	umount: somesymlink: not currently mounted

	There is no way to unmount it (that I know, except by hacking umount).

	umount uses realpath() to determine if something's mounted.
	union_mount doesn't.
>How-To-Repeat:
	As above
>Fix:
	Choice of:
	    union_mount to use realpath()
	or:
	    umount to check directory if realpath(directory) fails
>Audit-Trail:
>Unformatted: