+ For other operating systems there is support for either POSIX ACLs or
+ the more extensible NFSv4 ACLs.
+
+ The ACL stream format between Operation Systems is \textbf{not}
+ compatible so for example an ACL saved on Linux cannot be restored on
+ Solaris.
+
+ The following Operating Systems are currently supported:
+
+ \begin{enumerate}
+ \item AIX (pre-5.3 (POSIX) and post 5.3 (POSIX and NFSv4) ACLs)
+ \item Darwin
+ \item FreeBSD (POSIX and NFSv4/ZFS ACLs)
+ \item HPUX
+ \item IRIX
+ \item Linux
+ \item Solaris (POSIX and NFSv4/ZFS ACLs)
+ \item Tru64
+ \end{enumerate}
+
+\label{XattrSupport}
+\item [xattrsupport=yes\vb{}no]
+\index[dir]{xattrsupport}
+\index[dir]{Directive!xattrsupport}
+ The default is {\bf no}. If this option is set to yes, and your
+ operating system support either so called Extended Attributes or
+ Extensible Attributes Bacula will backup the file and directory
+ XATTR data. This feature is available on UNIX only and depends on
+ support of some specific library calls in libc.
+
+ The XATTR stream format between Operating Systems is {\bf not}
+ compatible so an XATTR saved on Linux cannot for example be restored
+ on Solaris.
+
+ On some operating systems ACLs are also stored as Extended Attributes
+ (Linux, Darwin, FreeBSD) Bacula checks if you have the aclsupport
+ option enabled and if so will not save the same info when saving
+ extended attribute information. Thus ACLs are only saved once.
+
+ The following Operating Systems are currently supported:
+
+ \begin{enumerate}
+ \item AIX (Extended Attributes)
+ \item Darwin (Extended Attributes)
+ \item FreeBSD (Extended Attributes)
+ \item IRIX (Extended Attributes)
+ \item Linux (Extended Attributes)
+ \item NetBSD (Extended Attributes)
+ \item Solaris (Extended Attributes and Extensible Attributes)
+ \item Tru64 (Extended Attributes)
+ \end{enumerate}
+