From: Anthony Sorace <a@9srv.net>
To: Fans of the OS Plan 9 from Bell Labs <9fans@9fans.net>
Subject: Re: [9fans] Man pages for add-ons
Date: Fri, 26 Mar 2010 01:59:56 -0400 [thread overview]
Message-ID: <20AAD8EC-F932-4BFD-9056-04B15A337687@9srv.net> (raw)
In-Reply-To: <twig.1269579741.2777@swcp.com>
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Unix has two camps for approaching this problem /usr/local and /opt.
While they're almost never followed well on modern unix systems, the
idea is basically a global local overlay vs. a per-package overlay.
The /usr/local approach takes all packages not part of the base
system and creates a "local root", a global mirror of (roughly) the
root file system. Those poor souls don't have bind to work with, so
everything ends up "knowing" to look in /bin and /usr/local/bin, /etc
and /usr/local/etc, and so on. Packages from multiple sources are all
intermixed in one /usr/local, so you've basically got the base system
vs. everything else. EBo's /sys_aps is basically a recreation of /usr/
local.
The /opt model creates per-package trees under /opt, for example /opt/
SomePackage. Within, it gets a similar looking overlay, but specific
to that package. It's then up to the user or site admin to determine
which packages get installed. Based on a similar (but much shorter)
conversation on inferno-list, a few of us are trying out this model
for third-party packages within Inferno.
The Plan 9 approach today is either install everything in / (/386/
bin, /sys/include, &c) or in your personal home dir and bind as
needed. The later is irritating on multi-user systems, and the former
can make maintenance a lot harder. Replica's -c and -s help, but it
still requires more vigilance from the admin than it seems like it
ought to.
Personally, I've always preferred the /opt model, as it makes it
easier to tell at a glance what's installed and to work with
components individually. The (non-)overlay can get unwieldy on Unix,
but our namespaces make that much easier for us. It also give both
admins and users package-level control over what gets included.
Like I said, I and a few others have started playing with this in
Inferno. If it works reasonably there, I intend to try something
similar in Plan 9. Anyone likes to beat me to it, I'd love to hear
about your results.
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next prev parent reply other threads:[~2010-03-26 5:59 UTC|newest]
Thread overview: 102+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-03-25 11:49 tlaronde
2010-03-25 13:37 ` erik quanstrom
2010-03-25 15:31 ` tlaronde
2010-03-25 15:36 ` erik quanstrom
2010-03-26 1:07 ` EBo
2010-03-25 16:03 ` Steve Simon
2010-03-25 18:11 ` lucio
2010-03-25 19:05 ` Tim Newsham
2010-03-25 19:36 ` lucio
2010-03-25 19:42 ` erik quanstrom
2010-03-26 0:52 ` EBo
2010-03-26 1:36 ` Jacob Todd
2010-03-26 2:05 ` ron minnich
2010-03-26 5:02 ` EBo
2010-03-26 5:52 ` Federico G. Benavento
2010-03-26 13:33 ` erik quanstrom
2010-03-26 5:59 ` Anthony Sorace [this message]
2010-03-26 6:09 ` Federico G. Benavento
2010-03-26 6:12 ` EBo
2010-03-26 6:24 ` Federico G. Benavento
2010-03-26 7:08 ` EBo
2010-03-26 13:24 ` erik quanstrom
2010-03-26 13:09 ` erik quanstrom
2010-03-26 16:45 ` Lyndon Nerenberg (VE6BBM/VE7TFX)
2010-03-26 16:55 ` erik quanstrom
2010-03-26 17:00 ` ron minnich
2010-03-26 17:12 ` erik quanstrom
2010-03-26 17:10 ` Lyndon Nerenberg (VE6BBM/VE7TFX)
2010-03-26 17:13 ` erik quanstrom
2010-03-26 17:15 ` Lyndon Nerenberg (VE6BBM/VE7TFX)
2010-03-26 17:21 ` erik quanstrom
2010-03-26 17:31 ` Lyndon Nerenberg (VE6BBM/VE7TFX)
2010-03-26 17:36 ` erik quanstrom
2010-03-26 17:56 ` Lyndon Nerenberg (VE6BBM/VE7TFX)
2010-03-26 18:44 ` erik quanstrom
2010-03-26 18:57 ` Lyndon Nerenberg (VE6BBM/VE7TFX)
2010-03-26 21:17 ` Ethan Grammatikidis
2010-03-26 21:30 ` erik quanstrom
2010-03-26 21:49 ` Ethan Grammatikidis
2010-03-26 17:31 ` Federico G. Benavento
2010-03-26 17:34 ` Lyndon Nerenberg (VE6BBM/VE7TFX)
2010-03-26 21:15 ` Ethan Grammatikidis
2010-03-26 21:32 ` erik quanstrom
2010-03-26 22:37 ` Ethan Grammatikidis
2010-03-27 4:32 ` lucio
2010-03-27 17:39 ` Tim Newsham
2010-03-27 22:37 ` Lyndon Nerenberg (VE6BBM/VE7TFX)
2010-03-26 16:56 ` ron minnich
2010-03-26 17:05 ` erik quanstrom
2010-03-26 21:50 ` tlaronde
2010-03-27 4:15 ` lucio
2010-03-27 7:53 ` Steve Simon
2010-03-27 8:40 ` lucio
2010-03-27 9:30 ` Federico G. Benavento
2010-03-27 13:41 ` erik quanstrom
2010-03-27 13:08 ` Anthony Sorace
2010-03-27 11:20 ` tlaronde
2010-03-28 13:17 ` [9fans] Man pages for add-ons: pax? tlaronde
2010-03-28 13:20 ` erik quanstrom
2010-03-28 18:39 ` hiro
2010-03-26 17:05 ` [9fans] Man pages for add-ons Anthony Sorace
2010-03-26 20:21 ` Ethan Grammatikidis
2010-03-27 16:46 ` Tim Newsham
2010-03-27 16:54 ` erik quanstrom
2010-03-27 17:58 ` Federico G. Benavento
2010-03-27 18:09 ` erik quanstrom
[not found] ` <f4d8fa41003271132k7d7e839fk78999c75ddf4b6af@mail.gmail.com>
2010-03-27 18:33 ` hiro
2010-03-27 23:45 ` Lyndon Nerenberg (VE6BBM/VE7TFX)
2010-03-28 0:39 ` erik quanstrom
2010-03-27 23:56 ` Tim Newsham
2010-03-28 0:45 ` erik quanstrom
2010-03-28 0:52 ` Lyndon Nerenberg (VE6BBM/VE7TFX)
2010-03-28 0:55 ` erik quanstrom
2010-03-28 1:02 ` Lyndon Nerenberg (VE6BBM/VE7TFX)
2010-03-28 19:06 ` Ethan Grammatikidis
2010-03-28 19:36 ` Federico G. Benavento
2010-03-28 20:04 ` erik quanstrom
2010-03-28 22:59 ` Ethan Grammatikidis
2010-03-28 23:28 ` hiro
2010-03-29 0:59 ` Ethan Grammatikidis
2010-03-29 2:11 ` Iruata Souza
2010-03-29 9:07 ` Patrick Kelly
2010-03-29 11:29 ` Ethan Grammatikidis
2010-03-29 12:14 ` Patrick Kelly
2010-03-29 12:41 ` Connor Lane Smith
2010-03-29 13:05 ` Patrick Kelly
2010-03-29 13:23 ` Connor Lane Smith
2010-03-29 13:58 ` Steve Simon
2010-03-29 19:29 ` Georg Lehner
2010-03-29 22:35 ` Patrick Kelly
2010-03-29 14:14 ` blstuart
2010-03-29 1:00 ` erik quanstrom
2010-03-27 17:49 ` Federico G. Benavento
2010-03-28 18:56 ` Ethan Grammatikidis
2010-03-28 20:09 ` erik quanstrom
2010-03-28 21:27 ` Jacob Todd
2010-03-25 14:07 ` Steve Simon
2010-03-25 15:48 ` tlaronde
2010-03-26 2:02 ` Ethan Grammatikidis
2010-03-26 2:04 ` erik quanstrom
2010-03-29 10:12 Hiro
2010-03-29 12:33 Hiro
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