EXT2SRV(4)                                             EXT2SRV(4)

          ext2srv - ext2 file system

          ext2srv [ -vrs ] [ -f file ] [ -p passwd ] [ -g group ] [
          service ]

          Ext2srv is a file server that interprets the Linux Second
          Extended File System.  A single instance of ext2srv can pro-
          vide access to multiple ext2 partitions simultaneously.

          Ext2srv posts a file descriptor named service (default ext2)
          in the /srv directory.  To access an ext2 file system on a
          device, use mount with the spec argument (see bind(1)) the
          name of the file holding the raw ext2 file system, typically
          the disk or partition.  If spec is undefined in the mount,
          ext2srv will use file as the default name for the device
          holding the file system.

          Normally ext2srv creates a pipe to act as the communications
          channel between itself and its clients.  The -s flag
          instructs ext2srv to use its standard input and output
          instead.  This flag also prevents the creation of an
          explicit service file in /srv.

          The -v flag causes verbose output for debugging, while the
          -r flag (recommended) makes the file system read-only.  The
          optional -p and -g flags specify Unix-format password
          (respectively group) files that give the mapping between the
          numeric user- and group-ID numbers in the ext2 file system
          and the strings reported by Plan 9 status inquiries.

          There is no authentication or permission checking.  Anyone
          who can access the ext2 file system will have full access to
          all its files, including write access if ext2srv is not
          started with the -r flag, irrespective of file ownership and
          permission flags.

          Some file system state is cached in memory, and may be
          flushed only when the file system is unmounted.  Therefore
          if ext2srv is stopped or the machine is rebooted while an
          ext2 file system is still mounted, the superblock on the
          device will have been marked `not valid' (unless the -r flag
          was used), and a fsck will be required before that file sys-
          tem may be mounted again.

          There is no authentication or permission checking.  The
          implementation has not tracked any changes to the ext2

     Page 1                       Plan 9             (printed 4/23/24)

     EXT2SRV(4)                                             EXT2SRV(4)

          specification since it was written.  There may be other
          bugs.  It is advisable to use ext2srv in read-only mode
          whenever possible.

          Bodet Laurent (bl@mime.univ-paris8.fr), with later updates
          by Russ Cox and Richard Miller.

     Page 2                       Plan 9             (printed 4/23/24)