poweroff とか reboot かけた時の挙動は /var/adm/messages からも読み取れるしね。
各プロセスに SIGTERM 送ってるらしいのと syncing file systems してるらしいのはわかる。


Feb 27 12:30:42 hostname rpcbind: [ID 564983 daemon.error] rpcbind terminating on signal.
Feb 27 12:30:42 hostname ntpd[511]: [ID 702911 daemon.notice] ntpd exiting on signal 15
Feb 27 12:30:42 hostname named[499]: [ID 873579 daemon.notice] stopping command channel on 127.0.0.1#953
Feb 27 12:30:42 hostname named[499]: [ID 873579 daemon.notice] stopping command channel on ::1#953
Feb 27 12:30:42 hostname named[499]: [ID 873579 daemon.notice] exiting
Feb 27 12:30:48 hostname genunix: [ID 672855 kern.notice] syncing file systems...
Feb 27 12:30:48 hostname genunix: [ID 904073 kern.notice]  done
Feb 27 12:51:12 hostname genunix: [ID 540533 kern.notice] ^MSunOS Release 5.11 Version snv_130 32-bit
Feb 27 12:51:12 hostname genunix: [ID 943908 kern.notice] Copyright 1983-2009 Sun Microsystems, Inc.  All rights reserved.
Feb 27 12:51:12 hostname Use is subject to license terms.