NAME

       ubuntu-core-upgrade - apply an Ubuntu Core system image to a running system

SYNOPSIS

       ubuntu-core-upgrade [OPTIONS]...  command-file

DESCRIPTION

       This  command,  which  is generally configured to be called by system-image-cli(1) applies
       the latest Ubuntu Core system image to the running system.

       The argument command-file should specify the full path to the declarative script generated
       by system-image-cli(1) listing all steps required for the upgrade.

OPTIONS

       --check-reboot
              Attempt to determine if a reboot may be required.

              This option is similar to --dry-run: no system changes are made.

              Note  that  the result of this command cannot be definitive since a reboot would be
              triggered if a service failed to start (but this option does not attempt to restart
              any services).

       --clean-only
              Clean up from a previous upgrader run, but do not upgrade.

       --debug
              Enable debug output.

       --dry-run
              Do not actually apply the update - simulate what would happen.

       --force-inplace-upgrade
              Apply  an  upgrade  to  current  rootfs  even if running on dual rootfs system (for
              testing).

       -h, --help
              Display usage.

       --leave-files
              Do not remove the downloaded system image files after upgrade.

       --no-reboot
              Do not reboot even if one would normally be required.

       --reboot-delay=seconds
              Wait for specified number of seconds before rebooting (default=2).

       --root-dir=directory
              Specify an alternative root directory (for testing).

       --show-other-details
              Dump the details of the system-image vesion on the other root partition.

       --tmpdir=directory
              Specify a alternate, pre-existing temporary directory to use.

NOTES

       If invoked without --check-reboot and without --debug, output will  be  sent  to  standard
       error and syslog.

WARNING

       This script should not be invoked directly by a user or administrator.

COPYRIGHT

       Copyright © 2014 Canonical Ltd.

LICENSE

       GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html>.
       This  is free software: you are free to change and redistribute it.  There is NO WARRANTY,
       to the extent permitted by law.

SEE ALSO

       system-image-cli(1)