EXT2FS(4)              FreeBSD Kernel Interfaces Manual              EXT2FS(4)

NAME

     ext2fs - ext2/ext3/ext4 file system

SYNOPSIS

     To link into the kernel:

           options EXT2FS

     To load as a kernel loadable module:

           kldload ext2fs

DESCRIPTION

     The ext2fs driver will permit the FreeBSD kernel to access ext2 file
     systems and its derivatives.  It currently implements most of the
     features required by ext3 and ext4 file systems.  Support for Extended
     Attributes in ext4 is experimental.  Journalling and encryption are
     currently not supported.

EXAMPLES

     To mount a ext2fs volume located on /dev/ada1s1:

           mount -t ext2fs /dev/ada1s1 /mnt

SEE ALSO

     nmount(2), unmount(2), fstab(5), mount(8)

HISTORY

     The ext2fs driver first appeared in FreeBSD 2.2.

AUTHORS

     The ext2fs kernel implementation is derived from code written, or
     modified, by Godmar Back using the UFS CSRG sources for CMU Mach.

     John Dyson did the initial port to FreeBSD.  Aditya Sarawgi merged
     important parts of the allocation code from a clean-room NetBSD
     implementation.  Zheng Liu and Fedor Uporov implemented the read and
     write support respectively for ext4 filesystems.  The FreeBSD community
     has contributed a huge amount of modifications.

     The initial version of this manual page was written by Craig Rodrigues
     <rodrigc@FreeBSD.org>.

FreeBSD 15.1-STABLE-HBSD       December 30, 2018                     EXT2FS(4)