Update documentation

Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>

2 files changed, 18 insertions, 22 deletions

diff --git a/README b/README
index 1c064ff..6564d13 100644
--- a/README
+++ b/README
@@ -50,22 +50,17 @@ together with the existing tools:
 
 At the moment, the following things still require some work:
 
- - more testing
+ - more testing (extensive unit testing for libsqfs still needed)
  - extended attributes
-    - currently limited to SELinux labeling only
-    - rdsquashfs ignores them entirely
-    - SquashFS supports deduplicating values through "out of line"
-      storage but this is currently not used yet.
- - hard links (not implemented yet; do we even want this?)
+    - gensquashfs supports SELinux labeling only
+    - rdsquashfs, sqfs2tar and tar2sqfs ignore them entirely
+    - entire key value blocks are deduplicated, but individual value
+      deduplication ("out of line" storage) isn't implemented.
+ - hard links (not implemented; tar2sqfs turns them into symlinks)
  - File deduplication (not implemented; do we even need this?)
  - NFS export tables (not implemented yet)
 
 
-At the moment, tar2sqfs also has some limitations on what it can process:
- - only POSIX tar archives with pax extensions (use --posix for GNU tar)
- - no sparse files or hard links (converted to symlink)
-
-
  Future plans
  ************
 
diff --git a/doc/tar2sqfs.1 b/doc/tar2sqfs.1
index 61c6b47..c43e412 100644
--- a/doc/tar2sqfs.1
+++ b/doc/tar2sqfs.1
@@ -62,18 +62,19 @@ Print help text and exit.
 .TP
 \fB\-\-version\fR, \fB\-V\fR
 Print version information and exit.
-.SH LIMITATIONS
-Currently the tool can only process POSIX tar archives with pax extensions, so
-you need to tell your tool that generates the tar ball to not use any other
-extensions.
+.SH COMPATIBILITY
+The tool is designed to support a broad variety of commonly used tar archives.
+Currently the tool can process v7 format, pre-POSIX ustar, POSIX tar and GNU
+tar archives. PAX extension headers are supported.
 
-For GNU tar, this can be done with the flag \fB\-\-posix\fR:
-.IP
-tar cf file.tar \-\-posix bin/ lib/ etc/ usr/
-.TP
-Furthermore, hard links and sparse files are currently not supported. If any
-unsupported section is encountered in a tar archive, the section is skipped and
-a warning message is written to stderr.
+The support for GNU tar is limited to commonly used header formats (i.e. some
+older, legacy headers are not supported) and extensions like sparse files.
+
+Hard links are currently not supported and silently converted to symlinks.
+Furthermore, none of the various xattr extensions are currently implemented.
+
+If any unsupported section is encountered in an archive, the section is skipped
+and a warning message is written to stderr.
 .SH EXAMPLES
 .TP
 Turn an uncompressed tar archive into a squashfs image: