#!/bin/sh
+# takedown
+# Entry point for cron to take the system down for backups
#
-# Take the system down for backups and then bring it back up.
+# This file is part of chiark backup, a system for backing up GNU/Linux and
+# other UN*X-compatible machines, as used on chiark.greenend.org.uk.
+#
+# chiark backup is:
+# Copyright (C) 1997-1998,2000-2001 Ian Jackson <ian@chiark.greenend.org.uk>
+# Copyright (C) 1999 Peter Maydell <pmaydell@chiark.greenend.org.uk>
+#
+# This 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, or (at your option) any later version.
+#
+# This 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.,
+# 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
+
+# Expects a single (possibly empty) argument X which is used to select
+# a file /etc/chiark-backup/warnings.X. This file will contain lines like:
+# T 300 "in 10 minutes"
+# T 240 "in 5 minutes"
+# T 45 "in 1 minute"
+# T 15 "in 15 seconds"
+# configuring the frequency of warning messages. If you call the
+# files 'warnings.soon', 'warnings.now' and 'warnings.' then
+# you can invoke this as:
+# takedown lots of warnings
+# takedown soon not so many warnings
+# takedown now no warning at all
set -e
-cd /etc/backup
+cd /etc/chiark-backup
host="`hostname`" || true
) &
sleep 1
+# We assume that runlevel 5 is set up suitably for doing backups
+# (ie non-essential services turned off in an effort to get the
+# tape to stream.)
telinit 5
~ian / chiark-utils.git / blobdiff