hello, for more than 10 years, I install OpenBSD to serve as firewalls and VPN IPSec or OpenVPN.
Some of these firewalls are near my office, while other are far away. Most of them are not used with an UPS. It is the main reason why I decided to use root FS mounted RO. /tmp, /dev, /var and /var/log are mounted into RAM using mfs and a skeleton. It worked fine during these 10 years. Now, OpenBSD needs root FS mounted RW. And, from 6.4, even if fstab says root fs to be mounted RO, it stays RW and it is not possible to remount it RO manually. And lsof has been retired... Is there any people, who like me used root FS read only, and are now in trouble ? Is there a way to use OpenBSD 6.4 resilient to power outage without UPS when root FS is mounted RW ? I am ready to use memory filesystem for /var and /var/log. Or, is there a simple way to use root FS RO with OpenBSD 6.4 and above ? -- Jean-Yves Boisiaud - Alcor Consulting 49, rue du Chemin Vert 49300 Cholet
