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Article #4329Re: Difference between Unix and Linux?
From: Steve Mading
Date: Tue, 02 Jul 2002 11:04
Date: Tue, 02 Jul 2002 11:04
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2926 bytes
In comp.unix.questions Jeffrey Siegal <jbs@quiotix.com> wrote: : Steve Mading wrote: :> Without init, you still don't have an OS yet. Without init launching :> at least *something*, there is no getty, no xdm, nothing. Without it, :> there is still no mechanism whatsoever for getting a user-level :> program to start, and even the most conservative definition of an :> OS includes that the OS exists for the purpose of presenting a :> platform on top of which you can stack a user program. : This is not quite correct. You can start a single user program from the : kernel command line with init=. That could be enough for some systems. Alright, then switching from programs to other files, would that one userland process function very well without any of the libraries in /lib, without the ability to interface with with system routines because the library to interface with the kernel is not there? How well will the system function without all the config files in /etc? (for example, will the kernel allow this "init=" program to run when there is no /etc/passwd file? Perhaps as root, but not as any other UID, I would suspect.) I still maintain that there is a bit more to the core linux OS than just a running kernel, given that the kernel on it's own is entirely useless without at least a filesystem to mount as '/'.
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From: Steve Mading <madings@baladi.bmrb.wisc.edu>
Newsgroups: comp.unix.admin,comp.unix.questions,gnu.misc.discuss
Subject: Re: Difference between Unix and Linux?
Date: Tue, 2 Jul 2002 11:04:03 +0000 (UTC)
Organization: University of Wisconsin, Madison
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