why must boot in single mode.

[LeKhoi]

Thank you Skylar for sharing the information.

I current have a simple server running RedHat, and wanting
to switch to FreeBSD as I think that FreeBSD would offer better
platform as a server in stability and security patches as such.
(Am I correct here or what ? :-)

I am doing all my research just to make sure I am making the
correct decision here.

And this one about the single user mode is really making me
cold feet at the moment :-)

I will contact data centres just to make sure that they have all
the facility needed to boot it into single user mode. Thanks again

Oh, btw, I have a quick scan on your personal page, very impress
that you are helping to maintain the servers. Would my choice of
FreeBSD over RedHat be correct in this instance for a webserver
do you think?


LeKhoi


On Thu, 16 Dec 2004 22:10:49 -0500, Skylar Thompson
<skylar at cs.earlham.edu> wrote:
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> LeKhoi wrote:
> 
> | Hi Chuck and Kris
> |
> | I am also interesting in the scenario. Some FreeBSD boxes are being
> | used for webserving in a production environment from data centres.
> |
> |
> | If this upgrading procedures is in question and is forced to reboot
> | into single user mode (which is not practical as I am not in the
> | data centre) then is there a way that we could upgrade the box
> | safely remotely? Even if we need to shut down the server.
> 
> 
> I guess I have a few things to say to this, based on personal experience:
> 
> 1. If the box works, why upgrade? All you really need to do is apply
> individual security patches, which does not require single-user mode.
> 2. If you do need to upgrade, then you should count on requiring
> single-user mode if anything goes wrong.
> 3. Many boxen in data centers, even low-end boxen like Poweredges and
> Proliants, have either integrated remote-management modules or options
> for them. Even if they don't have that, the BIOS of any real server
> will support redirection to a serial port that will allow you to use a
> modem to dial-in to the console. Even if it can't do that, decent KVM
> switches will have that kind of functionality. Any of these will allow
> you to get a remote console for work with the BIOS/single-user mode.
> 
> - --
> - -- Skylar Thompson (skylar at cs.earlham.edu)
> - -- http://www.cs.earlham.edu/~skylar/
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