3 # Entry point for cron to take the system down for backups
5 # This file is part of chiark backup, a system for backing up GNU/Linux and
6 # other UN*X-compatible machines, as used on chiark.greenend.org.uk.
9 # Copyright (C) 1997-1998,2000-2001,2007
10 # Ian Jackson <ian@chiark.greenend.org.uk>
11 # Copyright (C) 1999 Peter Maydell <pmaydell@chiark.greenend.org.uk>
13 # This is free software; you can redistribute it and/or modify it under the
14 # terms of the GNU General Public License as published by the Free Software
15 # Foundation; either version 3, or (at your option) any later version.
17 # This is distributed in the hope that it will be useful, but WITHOUT ANY
18 # WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
19 # FOR A PARTICULAR PURPOSE. See the GNU General Public License for more
22 # You should have received a copy of the GNU General Public License along
23 # with this program; if not, consult the Free Software Foundation's
24 # website at www.fsf.org, or the GNU Project website at www.gnu.org.
26 # Expects a single (possibly empty) argument X which is used to select
27 # a file /etc/chiark-backup/warnings.X. This file will contain lines like:
28 # T 300 "in 10 minutes"
29 # T 240 "in 5 minutes"
31 # T 15 "in 15 seconds"
32 # configuring the frequency of warning messages. If you call the
33 # files 'warnings.soon', 'warnings.now' and 'warnings.' then
34 # you can invoke this as:
35 # takedown lots of warnings
36 # takedown soon not so many warnings
37 # takedown now no warning at all
42 host="`hostname`" || true
47 *** WARNING - SYSTEM GOING DOWN FOR BACKUPS ***
48 $host will shut down automatically $2.
59 *** WARNING - SYSTEM GOING DOWN FOR BACKUPS ***
61 $host is shutting down IMMEDIATELY.
67 # We assume that runlevel 5 is set up suitably for doing backups
68 # (ie non-essential services turned off in an effort to get the