there is also an option for setting fsck to approve fixes without a prompt .. but I cant think of it off the top of my head... and this would be useful to set on your routers also
On Tue, 4 Jun 2019 at 21:05, Tom Smyth <tom.sm...@wirelessconnect.eu> wrote: > Hi Mogens, > > there are a number of threads on this if you search the misc archives on > marc.info, > > but setting softdep,noatime mount options on /etc/fstab is advisable > > for routers I tend to use mfs for partitions that tend to get written to > alot > > the following entries (/etc/fstab) show How I use mfs on my routers... > swap /tmp mfs > rw,nosuid,noexec,nodev,-s=512000,-P=/directorythatcontainsfilesthatwillbecopiedtomemoryatbootup/tmp > 0 0 > swap /var mfs rw,nosuid,noexec,nodev,-s=1024000,-P=/ > directorythatcontainsfilesthatwillbecopiedtomemoryatbootup/var 0 0 > swap /dev mfs rw,nosuid,noexec,-P=/ > directorythatcontainsfilesthatwillbecopiedtomemoryatbootup/dev,-i=2048,-s=102400 > 0 0 > > but bear in mind that that uses up to 1.6GB of ram ... so you might > want to tweak. to what suits your needs... > > check out conway's resflash and cappucios flashrd also > > https://www.packetmischief.ca/openbsd-compact-flash-firewall/ > > I hope this helps > Tom Smyth > > On Tue, 4 Jun 2019 at 20:31, Mogens Jensen <mogens-jen...@protonmail.com> > wrote: > >> I'm going to build a router for use in a remote location, and I have >> chosen OpenBSD 6.5 for the task. Unfortunately, it's not possible to >> protect the router with an UPS, so it will have to be resilient enough >> to survive sudden power outages and still boot without manual >> intervention. >> >> In the past I have built a few Linux based routers and they were >> configured to run from RAM. I have made some research to see if this is >> also possible on OpenBSD and found that, while there are solutions to >> have / read-only, none of this is officially supported. >> >> Can anyone with experience running OpenBSD routers without UPS, tell if >> filesystem corruption is going to be a problem after power outages, or >> if there are any officially supported ways to make the system resilient >> enough to not break after a power outage? >> >> I'm using an mSATA disk with MLC flash in the router. >> >> Thanks in advance. >> >> Mogens Jensen >> > > > -- > Kindest regards, > Tom Smyth. > -- Kindest regards, Tom Smyth.
