Hello!
I've written a CGI script to allow the user to change the media in a
BackupPC using the web GUI. There's really just two parts: shut down
the server, and initialize the media. I have a shell script that works,
but I would like to improve it. I have put zero effort into the HTML: I
will eventually wrap the standard BackupPC look and feel around it. My
biggest problem is the terrible delay while the format is taking place.
#!/bin/sh
echo "Content-type: text/html"
echo ""
echo "<HTML><HEAD><TITLE>Resetting drive</TITLE></HEAD><BODY>"
echo "<P><H1>Erasing and configuring drive</H1></P><P>"
echo "Unmounting drive...<BR>"
sudo /bin/umount /mnt/removable
echo "<BR>Formatting drive (this may take up to 10 minutes)...<BR>"
sudo /sbin/mke2fs -j -LDataDrive /dev/hdc1 > /dev/null
echo "<BR>Mounting drive...<BR>"
sudo /bin/mount /mnt/removable
echo "<P>Drive change complete!<P>"
echo "<H1><A HREF='/backuppc'>Return to Backup
System</A>.</H1></P></BODY></HTML>"
echo ""
exit
I am *very* open to suggestions on how I might implement this more
cleanly. The script works, but there is a very long pause while the
script does the format. If I take the "> /dev/null" out, I get lots of
lines like this:
2/1222 3/1222 4/1222 5/1222 6/1222
7/1222 8/1222 9/1222 10/1222
11/1222
12/1222 13/1222 14/1222 15/1222
16/1222
17/1222 18/1222 19/1222 20/1222
21/1222
22/1222 23/1222 24/1222 25/1222
26/1222
27/1222 28/1222 29/1222 30/1222
31/1222
32/1222 33/1222 34/1222 35/1222
36/1222
37/1222 38/1222 39/1222 40/1222
41/1222
42/1222 43/1222 44/1222 45/1222
46/1222
47/1222 48/1222 49/1222 50/1222
51/1222
52/1222 53/1222 54/1222 55/1222
56/1222
57/1222 58/1222 59/1222 60/1222
61/1222
62/1222 63/1222 64/1222 65/1222
66/1222
67/1222 68/1222 69/1222 70/1222
71/1222
72/1222 73/1222 74/1222 75/1222
76/1222
77/1222 78/1222 79/1222 80/1222
81/1222
82/1222 83/1222 84/1222 85/1222
86/1222
87/1222 88/1222 89/1222 90/1222
91/1222
92/1222
Those lines repeat for hundreds of lines.
What I would really like would be some way of letting the user know that
progress is being made, but obviously in a slightly more attractive way! :)
Does anyone have any experience on how you might be able to format a
drive via a CGI script that is more attractive? Google has been no
help. I have a feeling that formatting drives remotely is not exactly a
common goal... :)
Thank you very much for any help you might be able to provide. For
completeness, I've added my script for shutting the server down below as
well. "shutdown.html" is merely a BackupPC page saved as HTML and
modified for my purposes.
Tim Massey
CGI Script:
#!/bin/sh
echo "Content-type: text/html"
echo ""
cat shutdown.html
echo ""
echo ""
sudo /sbin/shutdown -h now
exit
shutdown.html:
<!doctype html public "-//W3C//DTD HTML 4.01 Transitional//EN">
<html><head>
<title>BackupPC: Shut Down Server</title>
<link rel=stylesheet type="text/css"
href="/backuppc/image/BackupPC_stnd.css" title="CSSFile">
<meta http-equiv="pragma" content="no-cache">
</head><body
onLoad="document.getElementById('NavMenu').style.height=document.body.scrollHeight">
<a href="http://backuppc.sourceforge.net";><img
src="/backuppc/image/logo.gif" hspace="5" vspace="7" border="0"></a><br>
<div id="Content">
<div class="h1">Shut Down Server</div>
<p><h2>The system is being shut down!</h2></p>
<p>This will take approximately 2 minutes. Do not remove the drive before
the system has powered itself off.</p>
</div>
<div class="NavMenu" id="NavMenu" style="height:100%">
<div class="NavTitle">Server</div>
<a href="/backuppc/index.cgi">Status</a>
<a href="/backuppc/index.cgi?action=summary">Host Summary</a>
<a href="/backuppc/index.cgi?action=editConfig">Edit Config</a>
<a href="/backuppc/index.cgi?action=editConfig&newMenu=hosts">Edit Hosts</a>
<a href="/backuppc/index.cgi?action=adminOpts">Admin Options</a>
<a href="/backuppc/index.cgi?action=view&type=LOG">LOG file</a>
<a href="/backuppc/index.cgi?action=LOGlist">Old LOGs</a>
<a href="/backuppc/index.cgi?action=emailSummary">Email summary</a>
<a href="/backuppc/index.cgi?action=queue">Current queues</a>
<a href="/backuppc/index.cgi?action=view&type=docs">Documentation</a>
<a href="http://backuppc.sourceforge.net/faq";>FAQ</a>
<a href="http://www.obscorp.com";>OBSCorp</a>
<a href="/backuppc/shutdown.cgi">Shut Down</a>
<a href="/backuppc/initmedia.cgi">Init Media</a>
<br><br><br>
</div>
</body></html>
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