MKSQUASHFS(1)
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 minimise 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
- -all-root
- make all files owned by root.
- -always-use-fragments
- use fragment blocks for files larger than block size.
- -b block_size
- set data block to block_size. Default 131072 bytes.
- -e exclude
- list of exclude dirs/files.
- -ef exclude_file
- list of exclude dirs/files. One per line.
- -force-gid gid
- set all file gids to gid.
- -force-uid uid
- set all file uids to uid.
- -fragment-queue size
- Set fagment queue to size Mbytes. Default 64 Mbytes.
- -info
- print files written to filesystem.
- -keep-as-directory
- if one source directory is specified, create a root directory containing that directory, rather than the contents of the directory.
- -noappend
- do not append to existing filesystem.
- -noDataCompression
- alternative name for -noD.
- -noD
- do not compress data blocks.
- -no-duplicates
- do not perform duplicate checking.
- -no-exports
- don't make the filesystem exportable via NFS.
- -noF
- do not compress fragment blocks.
- -noFragmentCompression
- alternative name for -noF.
- -no-fragments
- do not use fragments.
- -noI
- do not compress inode table.
- -noInodeCompression
- alternative name for -noI.
- -nopad
- do not pad filesystem to a multiple of 4K.
- -no-progress
- don't display the progress bar.
- -no-recovery
- don't generate a recovery file.
- -no-sparse
- don't detect sparse files.
- -pf pseudo-file
- Add list of pseudo file definitions.
- -p pseudo-definition
- Add pseudo file definition.
- -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.
- -recover name
- recover filesystem data using recovery file name.
- -regex
- Allow POSIX regular expressions to be used in exclude dirs/files.
- -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.
- -root-owned
- alternative name for -all-root.
- -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.
- -version
- print version, licence and copyright message.
- -wildcards
- Allow extended shell wildcards (globbing) to be used in exclude dirs/files.
- -write-queue size
- Set output queue to size Mbytes. Default 512 Mbytes.
SEE ALSO
HOMEPAGE
More information about mksquashfs and the squashfs filesystem can be found at <http://squashfs.sourceforge.net/>.
AUTHOR
squashfs was written by Phillip Lougher <plougher@users.sourceforge.net>.
- This manual page was written by Daniel Baumann <daniel@debian.org>, for
the Debian project (but may be used by others).