I discovered why the reboot of h1seih45 yesterday did not get logged the same way in which a model restart does. When the OS is rebooted, the startup procedure for the front end models is slightly different and does not created the target/<name>/logs/reboot.log file. On h1boot I modified the /diskless/root/etc/rc.local file to call a new script /diskless/root/etc/log_fe_startup.sh which creates the reboot.log file for each model running on the computer (including the iop model).