SQUASHFS/squashfs-tools-4.4/RELEASE-READMEs/README-3.0

   1         SQUASHFS 3.0 - A squashed read-only filesystem for Linux
   2
   3         Copyright 2002-2006 Phillip Lougher <phillip@lougher.org.uk>
   4
   5         Released under the GPL licence (version 2 or later).
   6
   7 Welcome to the first release of Squashfs version 3.0.  Squashfs 3.0 has the
   8 the following improvements to 2.x.
   9
  10         1. Filesystems are no longer limited to 4 GB.  In
  11            theory 2^64 or 4 exabytes is now supported.
  12
  13         2. Files are no longer limited to 4 GB.  In theory the maximum
  14            file size is 4 exabytes.
  15
  16         3. Metadata (inode table and directory tables) are no longer
  17            restricted to 16 Mbytes.
  18
  19         4. Hardlinks are now suppported.
  20
  21         5. Nlink counts are now supported.
  22
  23         6. Readdir now returns '.' and '..' entries.
  24
  25         7. Special support for files larger than 256 MB has been added to
  26            the Squashfs kernel code for faster read access.
  27
  28         8. Inode numbers are now stored within the inode rather than being
  29            computed from inode location on disk (this is not so much an
  30            improvement, but a change forced by the previously listed
  31            improvements).
  32
  33 There is a new Unsquashfs utility (in squashfs-tools) than can be used to
  34 decompress a filesystem without mounting it.
  35
  36 Squashfs 3.0 supports 2.x filesystems.  Support for 1.x filesystems
  37 will be added in the future.
  38
  39 1. UNSQUASHFS
  40 -------------
  41
  42 Unsquashfs has the following options:
  43
  44 SYNTAX: unsquashfs [-ls | -dest] filesystem
  45         -version                print version, licence and copyright information
  46         -info                   print files as they are unsquashed
  47         -ls                     list filesystem only
  48         -dest <pathname>        unsquash to <pathname>, default "squashfs-root"
  49
  50 The "-ls" option can be used to list the contents of a filesystem without
  51 decompressing the filesystem data itself.
  52
  53 The "-info" option forces Unsquashfs to print each file as it is decompressed.
  54
  55 The "-dest" option specifies the directory that is used to decompress
  56 the filesystem data.  If this option is not given then the filesystem is
  57 decompressed to the directory "squashfs-root" in the current working directory.
  58
  59 Unsquashfs can decompress 3.0 filesystems.  Support for 2.x and 1.x
  60 filesystems will be added in the future.