Comment 2 for bug 1323436

Logs actually persist on running system:
[root@fuel ~]# cd /var/log/
[root@fuel log]# ls
anaconda.ifcfg.log boot.log docker-cobbler.log docker-rabbitmq.log maillog secure
anaconda.log btmp docker-logs docker-rsync.log messages spooler
anaconda.program.log coredump docker-mcollective.log docker-rsyslog.log nginx supervisor
anaconda.storage.log cron docker-nailgun.log dracut.log ntpstats tallylog
anaconda.syslog dmesg docker-nginx.log fuelmenu.log puppet wtmp
anaconda.yum.log docker docker-ostf.log lastlog remote yum.log
audit docker-astute.log docker-postgres.log lxc rhsm

so the issue is in diagnostic snapshot capabilities.