Date: Wed, 25 Jul 2001 19:42:48 -0700 From: Kent Stewart <kstewart@urx.com> To: Jim Durham <durham@w2xo.pgh.pa.us> Cc: Kevin Golding <kevin@caomhin.demon.co.uk>, freebsd-questions@FreeBSD.ORG Subject: Re: make world from across the globe Message-ID: <3B5F83A8.1436B13D@urx.com> References: <Pine.BSF.4.33.0107251905030.438-100000@jimslaptop.int>
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Jim Durham wrote: > > On Tue, 24 Jul 2001, Kevin Golding wrote: > > > I'm planning an upgrade from 4.2 -> 4.3 release but there's a couple of > > things I'm a bit uncertain about. > > > > The problem is that I have no direct access to the machine in question, > > I usually just connect with ssh and for day to day stuff that serves me > > just fine, but from the stuff I've read about upgrades I should drop > > down to single user mode for the final stages like make installworld. > > > > Now to my knowledge this makes remote logins a problem. > > > > I've thought about setting /etc/ttys to insecure and then just dropping > > down but I'm not exactly confident that'll work. > > > > I've also read <URL: http://www.nothing-going- > > on.demon.co.uk/FreeBSD/make-world/make-world.html > which looks like I > > might be able to avoid dropping to single user if I'm *very* careful, > > prepared and desperate. > > > > I'm therefore hoping someone can point me in the direction of either i) > > a way to login across the Internet or ii) a way to do a source upgrade > > without dropping to single user > > > > What I do is make a boot.config file in / containing just "-h" (no > quotes). This causes the system to boot on the 1st serial port as > the console. > > I have an old Portmaster in the rack. I set up an unused port to > allow telnet to it and run a null modem cable to the serial port. > Works like a champ. You can do upgrades in single-user. That's > not really necessary, but the big win is that you can fool with the > firewall and routing without locking yourself out! (Did you ever try > to fix ipfw by coaxing a non-unix person on the other end of a 3000 > mile phone line? Naw....not a pretty sight... When I am testing ipfw remotely, I at a shell script that I call clnipfw. I give it about 10 minutes and then invoke my changes. If it works, I rm the at job. If it doesn't, I just have to wait 10 minutes for it to reopen back up. Kent > > If you don't have a Portmaster, you can use a Shiva box, or an > Equinox MDS-10 or whatever.. or, any old 486 with an ethernet card. > > Of course, you need at least 2 IPs! (Well... there are ways... but..) > > Jim Durham > > To Unsubscribe: send mail to majordomo@FreeBSD.org > with "unsubscribe freebsd-questions" in the body of the message -- Kent Stewart Richland, WA mailto:kbstew99@hotmail.com http://kstewart.urx.com/kstewart/index.html FreeBSD News http://daily.daemonnews.org/ To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-questions" in the body of the message
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