Date: Fri, 24 Mar 2006 08:06:45 -0800 From: Chris Maness <chris@chrismaness.com> To: Chris <chrcoluk@gmail.com> Cc: Eric Schultz <eric@schultznet.ca>, freebsd-questions@freebsd.org, Kris Kennaway <kris@obsecurity.org> Subject: Re: Remote Single User Mode? Message-ID: <44241915.3080507@chrismaness.com> In-Reply-To: <3aaaa3a0603240521w7fdb80c4h@mail.gmail.com> References: <44219364.1070201@chrismaness.com> <20060322183001.GA23540@xor.obsecurity.org> <4422B530.6090805@schultznet.ca> <4422C8A1.5010601@chrismaness.com> <3aaaa3a0603240521w7fdb80c4h@mail.gmail.com>
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Chris wrote: > On 23/03/06, Chris Maness <chris@chrismaness.com> wrote: > >> Eric Schultz wrote: >> >>> Kris Kennaway wrote: >>> >>>> On Wed, Mar 22, 2006 at 10:11:48AM -0800, Chris Maness wrote: >>>> >>>>> I administer this box by remote. >>>>> >>>> Look into setting up a serial console; this is the "remote single user >>>> mode" you're looking for. >>>> >>>> >>> Good morning... >>> >>> How remote is "remote"? >>> >>> If it's just down the hall you can probably get a DB25/DB9 (depending >>> on the machine) to RJ45 adapter and use existing CAT5 cable to get to >>> a serial console to your desk. There even exist serial RJ45 switch >>> boxes if you have several machines to "remote" administer. >>> >>> If it's farther than that, like in another building/city/etc. you can >>> always setup a modem on the box's serial port and dial in to that. >>> You'll need a modem at your end too, which means either an analog line >>> or a analog-to-digital tap for your office phone. >>> >>> I have no idea whether there any serial-over-IP solutions. But you >>> could build one with FreeBSD!!! >>> >>> >> I have a slave name server at the same location. Maybe I can run a >> serial cable with a crosover between the two of them. >> _______________________________________________ >> > > I think the docs are just playing safe, I admin over 10 servers and > have remote updated each one at least once, I have never had any > problems doing all this in multi user mode. > > make buildworld > make buildkernel > make installkernel > reboot > mergemaster -p > make installworld > mergemaster -iv > reboot > > Chris > > Yep, I went ahead and did it in multi user mode. No problems.
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