Provided by: squashfs-tools_4.2+20130409-2.1_i386 bug


       mksquashfs - tool to create and append to squashfs filesystems


       mksquashfs SOURCE [SOURCE2 ...] DESTINATION [OPTIONS]


       Squashfs is a highly compressed read-only filesystem for Linux. It uses
       zlib compression to compress both files, inodes and directories. Inodes
       in the system are very small and all blocks are packed to minimize data
       overhead. Block sizes greater than 4K are supported up to a maximum  of

       Squashfs is intended for general read-only filesystem use, for archival
       use (i.e.  in  cases  where  a  .tar.gz  file  may  be  used),  and  in
       constrained  block  device/memory systems (e.g. embedded systems) where
       low overhead is needed.


   Filesystem build options
       -comp COMPRESSION
           select  COMPRESSION  compression.   Compressors   available:   gzip
           (default), lzo, xz.

       -b BLOCK_SIZE
           set data block to BLOCK_SIZE. Default 131072 bytes.

           don't make the filesystem exportable via NFS.

           don't detect sparse files.

           don't store extended attributes.

           store extended attributes (default).

           do not compress inode table.

           do not compress data blocks.

           do not compress fragment blocks.

           do not compress extended attributes.

           do not use fragments.

           use fragment blocks for files larger than block size.

           do not perform duplicate checking.

           make all files owned by root.

       -force-uid uid
           set all file uids to uid.

       -force-gid gid
           set all file gids to gid.

           do not pad filesystem to a multiple of 4K.

           if  one  source  directory  is  specified,  create a root directory
           containing  that  directory,  rather  than  the  contents  of   the

   Filesystem filter options
           Add pseudo file definition.

       -pf PSEUDO_FILE
           Add list of pseudo file definitions.

       -sort SORT_FILE
           sort  files  according  to priorities in SORT_FILE. One file or dir
           with priority per line. Priority -32768 to 32767, default  priority

       -ef EXCLUDE_FILE
           list of exclude dirs/files. One per line.

           Allow  extended  shell  wildcards  (globbing) to be used in exclude

           Allow POSIX regular expressions to be used in exclude dirs/files.

   Filesystem append options
           do not append to existing filesystem.

       -root-becomes NAME
           when appending source files/directories,  make  the  original  root
           become  a  subdirectory  in  the  new root called NAME, rather than
           adding the new source items to the original root.

   Mksquashfs runtime options:
           print version, licence and copyright message.

       -recover NAME
           recover filesystem data using recovery file NAME.

           don't generate a recovery file.

           print files written to filesystem.

           don't display the progress bar.

       -processors NUMBER
           Use NUMBER processors. By default will  use  number  of  processors

       -read-queue SIZE
           Set input queue to SIZE Mbytes. Default 64 Mbytes.

       -write-queue SIZE
           Set output queue to SIZE Mbytes. Default 512 Mbytes.

       -fragment-queue SIZE
           Set fragment queue to SIZE Mbytes. Default 64 Mbytes.

   Miscellaneous options
           alternative name for -all-root.

           alternative name for -noI.

           alternative name for -noD.

           alternative name for -noF.

           alternative name for -noX.

   Compressors available and compressor specific options
       gzip (no options) (default)

       lzo (no options)


       -Xbcj filter1,filter2,...,filterN
           Compress  using filter1,filter2,...,filterN in turn (in addition to
           no filter), and choose the  best  compression.  Available  filters:
           x86, arm, armthumb, powerpc, sparc, ia64.

       -Xdict-size DICT_SIZE
           Use DICT_SIZE as the XZ dictionary size. The dictionary size can be
           specified as a percentage of the block  size,  or  as  an  absolute
           value.  The dictionary size must be less than or equal to the block
           size and 8192 bytes or larger. It must also be storable in  the  xz
           header as either 2^n or as 2^n+2^(n+1). Example dict-sizes are 75%,
           50%, 37.5%, 25%, or 32K, 16K, 8K etc.




       More information about mksquashfs and the squashfs  filesystem  can  be
       found at <>.


       squashfs was written by Phillip Lougher <>.

       This     manual     page     was     written    by    Daniel    Baumann