Note error when FFS does not support whiteouts and how to fix. (PR 3233)
This commit is contained in:
parent
be5f7db95e
commit
fb200132e5
|
@ -1,4 +1,4 @@
|
|||
.\" $NetBSD: mount_union.8,v 1.5 1996/01/15 02:00:21 thorpej Exp $
|
||||
.\" $NetBSD: mount_union.8,v 1.6 1997/06/30 20:06:39 phil Exp $
|
||||
.\"
|
||||
.\" Copyright (c) 1994
|
||||
.\" The Regents of the University of California. All rights reserved.
|
||||
|
@ -182,15 +182,21 @@ accessible via
|
|||
.Xr unmount 2 ,
|
||||
.Xr fstab 5 ,
|
||||
.Xr mount 8 ,
|
||||
.Xr mount_null 8
|
||||
.Xr mount_null 8 ,
|
||||
.Xr fsck_ffs 8
|
||||
.Sh BUGS
|
||||
Without whiteout support from the filesystem backing the upper layer,
|
||||
there is no way that delete and rename operations on lower layer
|
||||
objects can be done.
|
||||
.Dv EROFS
|
||||
is returned for this kind of operations along with any others
|
||||
which would make modifications to the lower layer, such as
|
||||
.Xr chmod 1 .
|
||||
An attempt to mount a union directory under one which does not
|
||||
have whiteout support will return
|
||||
.Dv EOPNOTSUPP
|
||||
(``Operation not supported'').
|
||||
Whiteout support can be added to an existing FFS filesystem
|
||||
by using the
|
||||
.Fl c
|
||||
option of
|
||||
.Xr fsck_ffs 8 .
|
||||
.Pp
|
||||
Running
|
||||
.Xr find 1
|
||||
|
|
Loading…
Reference in New Issue