other kind of special files. Do not attempt to save sparse files or
contiguous files as such. Let's discuss a few more problems, in turn.
+@FIXME{Discuss GNU extensions (incremental backups, multi-volume
+archives and archive labels) in GNU and PAX formats.}
+
@menu
* Portable Names:: Portable Names
* dereference:: Symbolic Links
To force creation a @GNUTAR{} archive, use option
@value{op-format-gnu}.
-Some @command{tar} options are currently basing on @GNUTAR{}
-format, and can therefore be used only with @samp{gnu}
-or @samp{oldgnu} archive formats. The list of such options follows:
-
-@itemize @bullet
-@item @value{op-label}, when used with @value{op-create}.
-@item @value{op-incremental}
-@item @value{op-multi-volume}
-@end itemize
-
-These options will be re-implemented for the @samp{posix} archive
-format in the future.
-
@node posix
@subsection @GNUTAR{} and @acronym{POSIX} @command{tar}
A @acronym{POSIX} conformant archive will be created if @command{tar}
was given @value{op-format-posix} option.
-Notice, that currently @acronym{GNU} extensions are not
-allowed with this format. Following is the list of options that
-cannot be used with @value{op-format-posix}:
-
-@itemize @bullet
-@item @value{op-label}, when used with @value{op-create}.
-@item @value{op-incremental}
-@item @value{op-multi-volume}
-@end itemize
-
-This restriction will disappear in the future versions.
@node Checksumming
@subsection Checksumming Problems