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       hibernate - save your computer’s state to disk, and then switch it off


       hibernate [OPTION]...


       The  hibernate script (or "suspend script") is used to invoke the Linux
       kernel’s Software Suspend functionality.

       When you hibernate your machine, the contents of your computer’s memory
       will  be  saved  to  disc, and your computer will switch off.  When you
       switch it back on again, it will resume exactly  as  it  was  when  you
       hibernated.   This  script is designed for Software Suspend 2, which is
       not yet included in the main kernel tree and must  be  downloaded  from
       the Software Suspend web site at, but can also
       utilise the vanilla kernel interfaces for  swsusp  or  pmdisk  (through
       /proc/acpi/sleep  or /sys/power/state).  Instructions on setting up the
       kernel can also be found on that web site.

       The hibernate script takes care of the user-space side of the  suspend,
       including unloading and reloading drivers which don’t suspend properly,
       setting the system clock after resuming, taking down  and  bringing  up
       network interfaces and various other hacks that may be required on some
       hardware.  By default, all it does is restore the  system  clock  after
       suspending;  see  hibernate.conf(5)  for information on configuring the
       rest of its functionality.

       If the hibernate script is invoked with a name of the  form  hibernate-
       foo  then  it  will  use the configuration file /etc/hibernate/foo.conf
       instead of the default.

       The hibernate script accepts the following command-line options:


       -h, --help      Shows this help screen.

       --version       Shows the Hibernate Script version.

       -f, --force     Ignore errors and suspend anyway.

       -k, --kill      Kill processes if needed, in order to suspend.

       -v<n>, --verbosity=<n>
                       Change verbosity level (0 = errors only, 3 = verbose, 4
                       = debug)

       -F<file>, --config-file=<file>
                       Use the given configuration file instead of the default

       --dry-run       Don’t actually do anything.

       -g, --restore-grub
                       Restores the grub menu to normal (use if a  resume  was
                       not  completed  sucessfully)  and  exits  the script. A
                       suspend is not performed.

       --lock-console-as <username>
                       Uses vlock to lock the entire  system  after  resuming,
                       requirng  you  to enter the password for the given user
                       to unlock it. This overrides any username given in  the
                       configuration file. (Requires vlock)

       -r[0|1], --reboot[=<0|1>] (requires UseTuxOnIce on)
                       If 0 is specified, disables rebooting after writing the
                       image,  regardless  of  the  Reboot   option   in   the
                       configuration  file.  If  1  or  omitted,  will force a
                       reboot after writing the image.

       --bug-report (requires UseTuxOnIce on)
                       Gathers a bunch of information about your  machine  and
                       writes  it  to  standard  output.  Please  attach  this
                       information along with any bug reports to the  TuxOnIce
                       mailing list.

       -n, --no-suspend
                       Disables actually suspending the system. This is useful
                       for testing the hibernate script itself.


       The exit codes returned  by  the  hibernate  script  are  currently  as

       0      Hibernation was completed successfully.

       2      Hibernation  was  aborted  due  to  errors from some part of the
              script. (eg, modules not unloading, devices  or  filesystems  in

       3      Hibernate script was aborted by user with Ctrl+C. (This does not
              mean the suspend was aborted by a user by pressing Escape).

       4      Hibernation was aborted by a kernel problem  (hibernate.log  and
              dmesg should indicate why), or the user aborted the suspend with
              the Escape key.


                 Contains  options  which  influence  the  hibernate  script’s
                 behaviour.  See hibernate.conf(5) for more information.



                 These   directories   contains   "scriptlets"   that  provide
                 functionality  when  suspending  and   resuming.    See   the
                 SCRIPTLET-API  file included with the distribution (which can
                 be found in /usr/share/doc/hibernate on Debian  systems)  for
                 information on how these work.


       Probably lots!

       If you have problems with the hibernate script or Software Suspend, the
       best    place    to    ask    is    on    the    mailing     list     -  You will need to subscribe to post.
       See for details.

       If the suspend process itself crashes (while "Writing caches", "Reading
       caches", or "Copying original kernel back", etc), then the problem lies
       with Software Suspend 2 itself. See the FAQ at
       for help on debugging.


       This script was written by Bernard Blackham, with contributions from:

       ·   Carsten  Rietzschel  (modules, bootsplash and grub scriptlets. many
           ideas and bugfixes)

       ·   Cameron Patrick (many bugfixes  and  ideas,  man  page  and  Debian