knoppix@0[knoppix]$ sudo smartctl -t long /dev/hda
smartctl version 5.32 Copyright (C) 2002-4 Bruce Allen
Home page is http://smartmontools.sourceforge.net/

=== START OF OFFLINE IMMEDIATE AND SELF-TEST SECTION ===
Sending command: "Execute SMART Extended self-test routine immediately in off-line mode".
Drive command "Execute SMART Extended self-test routine immediately in off-line mode" successful.
Testing has begun.
Please wait 56 minutes for test to complete.
Test will complete after Sat Oct 28 13:45:52 2006

Use smartctl -X to abort test.