Date: Wed, 25 Jul 2001 19:12:44 -0400 (EDT) From: Jim Durham <durham@w2xo.pgh.pa.us> To: Kevin Golding <kevin@caomhin.demon.co.uk> Cc: <freebsd-questions@FreeBSD.ORG> Subject: Re: make world from across the globe Message-ID: <Pine.BSF.4.33.0107251905030.438-100000@jimslaptop.int> In-Reply-To: <KvQQHNBk7aX7Ewvw@caomhin.demon.co.uk>
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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... 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
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