Linux and UNIX Man Pages

Linux & Unix Commands - Search Man Pages

unsquashfs(1) [centos man page]

UNSQUASHFS(1)						  uncompress squashfs filesystems					     UNSQUASHFS(1)

mksquashfs - tool to uncompress squashfs filesystems SYNOPSIS
unsquashfs [OPTIONS] FILESYSTEM [directories or files to extract] 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 con- strained block device/memory systems (e.g. embedded systems) where low overhead is needed. OPTIONS
-v, -version print version, licence and copyright information. -d PATHNAME, -dest PATHNAME unsquash to PATHNAME, default "squashfs-root". -n, -no-progress don't display the progress bar. -no, -no-xattrs don't extract xattrs in file system. -x, -xattrs extract xattrs in file system (default). -p NUMBER, -processors NUMBER use NUMBER processors. By default will use number of processors available. -i, -info print files as they are unsquashed. -li, -linfo print files as they are unsquashed with file attributes (like ls -l output). -l, -ls list filesystem, but don't unsquash. -ll, -lls list filesystem with file attributes (like ls -l output), but don't unsquash. -f, -force if file already exists then overwrite. -s, -stat display filesystem superblock information. -e EXTRACT_FILE, -ef EXTRACT_FILE list of directories or files to extract. One per line. -da SIZE, -data-queue SIZE Set data queue to SIZE Mbytes. Default 256 Mbytes. -fr SIZE, -frag-queue SIZE Set fragment queue to SIZE Mbytes. Default 256 Mbytes. -r, -regex treat extract names as POSIX regular expressions rather than use the default shell wildcard expansion (globbing). Decompressors available gzip lzo xz SEE ALSO
mksquashfs(1) HOMEPAGE
More information about unsquashfs and the squashfs filesystem can be found at <>. AUTHOR
squashfs was written by Phillip Lougher <>. This manual page was written by Daniel Baumann <>. 4.2 2012-06-30 UNSQUASHFS(1)

Check Out this Related Man Page

DUMPE2FS(8)						      System Manager's Manual						       DUMPE2FS(8)

dumpe2fs - dump ext2/ext3/ext4 filesystem information SYNOPSIS
dumpe2fs [ -bfhixV ] [ -o superblock=superblock ] [ -o blocksize=blocksize ] device DESCRIPTION
dumpe2fs prints the super block and blocks group information for the filesystem present on device. dumpe2fs is similar to Berkeley's dumpfs program for the BSD Fast File System. OPTIONS
-b print the blocks which are reserved as bad in the filesystem. -o superblock=superblock use the block superblock when examining the filesystem. This option is not usually needed except by a filesystem wizard who is examining the remains of a very badly corrupted filesystem. -o blocksize=blocksize use blocks of blocksize bytes when examining the filesystem. This option is not usually needed except by a filesystem wizard who is examining the remains of a very badly corrupted filesystem. -f force dumpe2fs to display a filesystem even though it may have some filesystem feature flags which dumpe2fs may not understand (and which can cause some of dumpe2fs's display to be suspect). -h only display the superblock information and not any of the block group descriptor detail information. -i display the filesystem data from an image file created by e2image, using device as the pathname to the image file. -x print the detailed group information block numbers in hexadecimal format -V print the version number of dumpe2fs and exit. BUGS
You need to know the physical filesystem structure to understand the output. AUTHOR
dumpe2fs was written by Remy Card <>. It is currently being maintained by Theodore Ts'o <>. AVAILABILITY
dumpe2fs is part of the e2fsprogs package and is available from SEE ALSO
e2fsck(8), mke2fs(8), tune2fs(8) E2fsprogs version 1.41.14 December 2010 DUMPE2FS(8)
Man Page

Featured Tech Videos