9d35d9a12a
General update of the driver description and mention some important credits. Add a symlink for ext4fs as it is of special interest nowadays. Fic some `mandoc -Tlint` issues while here. MFC after: 15 days Differential Revision: https://reviews.freebsd.org/D18445
107 lines
2.8 KiB
Groff
107 lines
2.8 KiB
Groff
.\"
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.\" Copyright (c) 2006 Craig Rodrigues
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.\" All rights reserved.
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.\"
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.\" Redistribution and use in source and binary forms, with or without
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.\" modification, are permitted provided that the following conditions
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.\" are met:
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.\" 1. Redistributions of source code must retain the above copyright
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.\" notice, this list of conditions and the following disclaimer.
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.\" 2. Redistributions in binary form must reproduce the above copyright
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.\" notice, this list of conditions and the following disclaimer in the
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.\" documentation and/or other materials provided with the distribution.
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.\" 3. The name of the author may not be used to endorse or promote products
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.\" derived from this software without specific prior written permission
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.\"
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.\" THIS DOCUMENTATION IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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.\" IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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.\" OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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.\" IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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.\" INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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.\" NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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.\" DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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.\" THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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.\" (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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.\" THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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.\"
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.\" $FreeBSD$
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.\"
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.Dd December 30, 2018
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.Dt EXT2FS 5
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.Os
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.Sh NAME
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.Nm ext2fs
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.Nd "ext2/ext3/ext4 file system"
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.Sh SYNOPSIS
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To link into the kernel:
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.Bd -ragged -offset indent
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.Cd "options EXT2FS"
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.Ed
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.Pp
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To load as a kernel loadable module:
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.Pp
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.Dl "kldload ext2fs"
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.Sh DESCRIPTION
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The
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.Nm
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driver will permit the
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.Fx
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kernel to access
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ext2
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file systems and its derivatives.
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It currently implements most of the features required by
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.Em ext3
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and
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.Em ext4
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file systems.
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Support for Extended Attributes in
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.Em ext4
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is experimental.
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Journalling and encryption are currently not supported.
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.Sh EXAMPLES
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To mount a
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.Nm
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volume located on
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.Pa /dev/ada1s1 :
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.Pp
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.Dl "mount -t ext2fs /dev/ada1s1 /mnt"
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.Sh SEE ALSO
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.Xr nmount 2 ,
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.Xr unmount 2 ,
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.Xr fstab 5 ,
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.Xr mount 8
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.Sh HISTORY
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The
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.Nm
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driver first appeared in
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.Fx 2.2 .
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.Sh AUTHORS
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.An -nosplit
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The
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.Nm
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kernel implementation is derived from code written,
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or modified,
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by
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.An Godmar Back
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using the UFS CSRG sources for CMU Mach.
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.Pp
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.An John Dyson
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did the initial port to
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.Fx .
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.An Aditya Sarawgi
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merged important parts of the allocation code from a clean-room
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.Nx
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implementation.
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.An Zheng Liu
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and
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.An Fedor Upurov
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implemented the read and write support respectively for
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.Em ext4
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filesystems.
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The
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.Fx
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community has contributed a huge amount of modifications.
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.Pp
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The initial version of this manual page was written by
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.An Craig Rodrigues Aq Mt rodrigc@FreeBSD.org .
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