NAME

       ltsp-update-image - generate an NBD image from an LTSP chroot

SYNOPSIS

       ltsp-update-image [OPTION] [CHROOT...]

DESCRIPTION

       Generates  a  compressed  squashfs  NBD  image  from  an  LTSP  chroot and exports it with
       nbd-server. Chroot can be a full path or a subdirectory of the LTSP base directory, and it
       defaults to the host architecture if unset.

OPTIONS

       -b, --base[=PATH]
              The LTSP base directory Defaults to /opt/ltsp if unspecified.

       -c, --cleanup
              Temporarily remove user accounts, logs, caches etc from the chroot before exporting
              the image. The chroot arch is required to be compatible with the server arch.

       -e, --exclude[=LIST]
              List  of  dirs/files  to  exclude  from  the  image.   This  is  in   addition   to
              /etc/ltsp/ltsp-update-image.excludes.

       -f, --config-nbd
              Generate appropriate nbd-server configuration files.  It's automatically set if NFS
              isn't used or if other LTSP generated nbd-server configuration files already exist.

       -h, --help
              Displays the ltsp-update-image help message.

       -m, --no-compress
              Don't compress the generated image.

       -n, --no-backup
              Don't backup chroot.img to chroot.img.old.

       -r, --revert
              Swap chroot.img with chroot.img.old and update kernels.

       --version
              Output version information and exit.

FILES

       /etc/ltsp/<tool>.conf: Upon execution the tool will read a configuration file to  override
       built-in defaults.

       Values  are  NAME="VALUE"  pairs,  with  #  representing commented lines. most commandline
       options have an equivalent.  an  example  Debian  based  system  with  an  alternate  base
       location, architecture, and distribution:

        # set alternate default location for ltsp chroot (--base)
        BASE="/srv/ltsp"
        # build an amd64 chroot by default (--arch)
        ARCH="amd64"
        # build a Debian sid environment (--dist)
        DIST="sid"

       /etc/ltsp/ltsp-server.conf:  Each LTSP server tool will read a generic configuration file.
       This file is typically used for setting BASE, TFTP_DIRS and TFTP_BOOT_DIR. These  settings
       are overwritten by those set in specific tool configs.

AVAILABILITY

       Part  of  the  ltsp  package  and  the  latest  versions are available in source form from
       https://launchpad.net/products/ltsp.

AUTHOR

       Autogenerated from the script source code with help2man. Distributed under  the  terms  of
       the GNU General Public License version 2 or any later version.

REPORTING BUGS

       Report bugs to https://bugs.launchpad.net/ltsp.

SEE ALSO

       ltsp-build-client(8),   ltsp-update-kernels(8),   ltsp-update-sshkeys(8),   mksquashfs(1),
       nbd-server(1)