Subject: kern/8270: union lookup no longer works w/ fdesc file system
To: None <gnats-bugs@gnats.netbsd.org>
From: Jason R Thorpe <thorpej@nas.nasa.gov>
List: netbsd-bugs
Date: 08/24/1999 15:20:51
>Number: 8270
>Category: kern
>Synopsis: union lookup no longer works w/ fdesc file system
>Confidential: no
>Severity: critical
>Priority: high
>Responsible: kern-bug-people (Kernel Bug People)
>State: open
>Class: sw-bug
>Submitter-Id: net
>Arrival-Date: Tue Aug 24 15:20:00 1999
>Last-Modified:
>Originator:
>Organization:
Numerical Aerospace Simulation Facility - NASA Ames
>Release: NetBSD 1.4K, Tue Aug 24 15:04:45 PDT 1999
>Environment:
System: NetBSD bishop 1.4K NetBSD 1.4K (BISHOP) #763: Tue Aug 24 14:19:31 PDT 1999 thorpej@bishop:/amd/dracul/u2/netbsd/src/sys/arch/alpha/compile/BISHOP alpha
>Description:
Mounting the fdesc file system with `-o union' over /dev used
to result in a union lookup of the fdesc file system on top and
the underlying root file system underneath. However, this has
broken recently; only the fdesc file systems appears, leading
to untold lossage once it is mounted.
>How-To-Repeat:
This following in your /etc/fstab:
fdesc /dev fdesc rw,-o=union 0 0
>Fix:
Unknown.
>Audit-Trail:
>Unformatted: