Re: CF and Disk Writes
Chuck Yerkes <[email protected]> Fri, 21 Jun 2002 10:36:51 -0700
| Newsgroups | gmane.os.openbsd.embedded |
|---|---|
| Message-ID | <[email protected]> |
Quoting [email protected] ([email protected]): > "David Simmons" <[email protected]> writes: > > How do I know what else will write/destroy the CF without putting > > the write-protect on the whole thing (since it needs to be 'open' > > for the leases file?) > > Along the lines of what a few other people have posted (Chuck Yerkes > for one), I modified the rc file to not remount the CF read/write at > boot time, and to extract a tar file of /var into an MFS partition. Actually, I have /var/mfs/ mounted. On startup, after mounting that, I rsync -av /var/mfs.PROTO/ /var/mfs/ It's got the basics to run (dhcpd.leases, some namedb stuff I want, structure for /var/run/). I tweaked libutil to use /dev/term/ for ptys. Must redo that "right" to get wtmp to work, but on login, there's a chown that happens to the device, so the startup also does: mount /dev/term/ #(mfs) (cd /dev/term && sh /dev/MAKEDEV terms) #(build devices on /dev/term/). I'd done those libutil hack a long time ago when I was playing with readonly root partitions in general. syslog.conf points everything to another host. It's a home firewall, so taht host is sometimes down. BUt someone whacking at a readonly box when all the boxes behind it are off it pretty much moot to me. Question: what options in fstab will let me limit the size of an MFS? It's easy on Solaris, but the /dev/term/ "partition" can be 50k, really. I looked at some other boxes, with Pentiums, but all these "embedded Pentium" type people don't seem to get that Keyboards and VGA are not just unneeded, but also undesirable. I still want one of these "innovating" PC companies to come out with a freaking Open Boot PROM instead of BIOS. Like my Suns. My SGIs. Like my freaking Mac laptop. ("boot net" from a laptop is cool)