NAME

       guestfsd - guestfs daemon

SYNOPSIS

        guestfsd [-r] [-v|--verbose]

DESCRIPTION

       "guestfsd" is the libguestfs daemon.  Normal users never need to run this program explicitly.  This man
       page discusses what "guestfsd" does in both the libguestfs appliance and when using libguestfs live.

   LIBGUESTFS APPLIANCE
       For the architecture of the libguestfs appliance, see "ARCHITECTURE" in guestfs(3).

       After the appliance boots, the "/init" script in the appliance starts "guestfsd" with no arguments.
       "guestfsd" opens the virtio-serial port on a known path (see "FILES").  It initiates the protocol (see
       "COMMUNICATION PROTOCOL" in guestfs(3)) and processes requests one at a time from the library until the
       appliance is destroyed.

       Filesystems are mounted under "/sysroot" and all filesystem operations happen relative to this directory.

   LIBGUESTFS LIVE
       In the libguestfs live case, "guestfsd -r" is started from the rc-scripts, systemd, etc.

       The "-r" option causes the daemon to operate on the root filesystem instead of "/sysroot".

       Currently (because of limitations in virtio-serial) only one client can connect at a time, and "guestfsd"
       must be restarted after each client disconnects.  If libguestfs live were changed to use a different
       transport such as TCP/IP then this limitation could be removed.

OPTIONS

       -?
       --help
           Display brief help.

       -r  Set  the root filesystem to be "/" (instead of the default which is "/sysroot").  Also do not unmount
           filesystems when the daemon exits.

           This option is used to enable libguestfs live.

       -v
       --verbose
           Enable verbose messages for debugging.

           The verbose flag is also set if the Linux command line contains the substring "guestfs_verbose=1".

EXIT STATUS

       This program returns 0 if successful, or non-zero if there was an error.

FILES

       "/dev/virtio-ports/org.libguestfs.channel.0"
           The virtio serial port which "guestfsd" connects to.

       "/proc/cmdline"
           The Linux command line is parsed to discover "guestfs_*" flags.  The following flags are understood:

           guestfs_verbose=1
               Enable verbose messages.  This flag is passed by the libguestfs library to the appliance to  make
               the daemon more verbose (it acts like the -v flag on the command line).  Unrelated to the daemon,
               it also causes the appliance init script to print out a lot more debugging information.

           guestfs_channel=PATH
               Set  the  path  to  the  virtio-serial  channel  to  something  other  than the default (which is
               "/dev/virtio-ports/org.libguestfs.channel.0").  This is used by the User-Mode  Linux  backend  to
               use a regular emulated serial port instead of virtio-serial.

           guestfs_network=1
               This is set if the appliance network is enabled (see "guestfs_set_network").

SEE ALSO

       guestfs(3), http://libguestfs.org/.

AUTHOR

       Richard W.M. Jones http://people.redhat.com/~rjones/

COPYRIGHT

       Copyright (C) 2009-2014 Red Hat Inc.

LICENSE

       This  program  is  free  software;  you  can  redistribute it and/or modify it under the terms of the GNU
       General Public License as published by the Free Software Foundation; either version 2 of the License,  or
       (at your option) any later version.

       This  program  is  distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even
       the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General  Public
       License for more details.

       You  should have received a copy of the GNU General Public License along with this program; if not, write
       to the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.

BUGS

       To     get      a      list      of      bugs      against      libguestfs,      use      this      link:
       https://bugzilla.redhat.com/buglist.cgi?component=libguestfs&product=Virtualization+Tools

       To       report       a       new       bug       against       libguestfs,      use      this      link:
       https://bugzilla.redhat.com/enter_bug.cgi?component=libguestfs&product=Virtualization+Tools

       When reporting a bug, please supply:

       •   The version of libguestfs.

       •   Where you got libguestfs (eg. which Linux distro, compiled from source, etc)

       •   Describe the bug accurately and give a way to reproduce it.

       •   Run libguestfs-test-tool(1) and paste the complete, unedited output into the bug report.

libguestfs-1.24.5                                  2015-10-14                                        guestfsd(8)