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

NAME

       mksquashfs - tool to create and append to squashfs filesystems

SYNOPSIS

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

DESCRIPTION

       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
       64K.

       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.

OPTIONS

   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.

       -no-exports
           don't make the filesystem exportable via NFS.

       -no-sparse
           don't detect sparse files.

       -no-xattrs
           don't store extended attributes.

       -xattrs
           store extended attributes (default).

       -noI
           do not compress inode table.

       -noD
           do not compress data blocks.

       -noF
           do not compress fragment blocks.

       -noX
           do not compress extended attributes.

       -no-fragments
           do not use fragments.

       -always-use-fragments
           use fragment blocks for files larger than block size.

       -no-duplicates
           do not perform duplicate checking.

       -all-root
           make all files owned by root.

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

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

       -nopad
           do not pad filesystem to a multiple of 4K.

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

   Filesystem filter options
       -p PSEUDO_DEFINITION
           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
           0.

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

       -wildcards
           Allow  extended  shell  wildcards  (globbing) to be used in exclude
           dirs/files

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

   Filesystem append options
       -noappend
           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:
       -version
           print version, licence and copyright message.

       -recover NAME
           recover filesystem data using recovery file NAME.

       -no-recovery
           don't generate a recovery file.

       -info
           print files written to filesystem.

       -no-progress
           don't display the progress bar.

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

       -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
       -root-owned
           alternative name for -all-root.

       -noInodeCompression
           alternative name for -noI.

       -noDataCompression
           alternative name for -noD.

       -noFragmentCompression
           alternative name for -noF.

       -noXattrCompression
           alternative name for -noX.

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

       lzo (no options)

       xz

       -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.

SEE ALSO

       unsquashfs(1)

HOMEPAGE

       More information about mksquashfs and the squashfs  filesystem  can  be
       found at <http://squashfs.sourceforge.net/>.

AUTHOR

       squashfs was written by Phillip Lougher <phillip@squashfs.org.uk>.

       This     manual     page     was     written    by    Daniel    Baumann
       <mail@daniel-baumann.ch>.