Re: Guix vs GuixSD

[myglc2 <myglc2@gmail.com>]

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Chris Marusich <cmmarusich@gmail.com> writes:

[...]

Thank you for the helpful comments. I have revised the diagram
accordingly. Please let me know if I missed something.

>>> * "Guix system services": consider renaming "Guix" to "GuixSD".
>>
>> One issue with "GuixSD" is that GuixSD does not exist independently of
>> Guix, e.g., you can not install Guix without getting GuixSD tools and
>> packages. FWIW, thinking that these were separate caused a lot of
>> confusion for me in the first few weeks of using GuixSD.
>>
>> From a Guix-centric point of view, whether your system is running "Guix
>> system services" or "Debian system services" only depends on whether you
>> have gotten around to running 'guix system init'. This is actually an
>> incredibly powerful and, so far, "not much talked about" feature of
>> Guix. But untill we know how we want to present this feature to the
>> world, I think we should go easy on pushing the idea that Guix and
>> GuixSD are so separate.
>
> Since I haven't run Guix on a foreign distro yet, I might not understand
> this point as well as you do. Are you saying that you can run "Guix
> system services" on Debian at startup if you run "guix system init"?

I am saying you can "upgrade" your computer from, say, Guix on Debian to
GuixSD by doing ...

     mount /dev/sdX /mnt
     guix system init /mnt/etc/config.scm /mnt

... where /dev/sdX is a new system disk. With more complicated maneuvers
you can no doubt convert an existing system disk.

- George
 

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// GNU Guix on Debian vs GuixSD
digraph G {
	compound=true
	size="12,12"
	edge [fontname = helvetica]
	graph [fontname = helvetica]
	node  [fontname = helvetica]
	{ node [shape=box style = filled fillcolor="white" color = transparent]
		pkgsource [label = "Source"]
		substitutes [label = "Prebuilt\nPackage"]
	}
	// guix on Debian
	{ node [shape=box style = filled fillcolor=pink color = transparent]
		dpkgs [label = "Debian packages" fillcolor=grey]
	}
	{ node [shape=box style ="filled,rounded" fillcolor=pink color = transparent]
		guixd2 [label = "Guix build daemon"]
		debs [label = "Debian system services" fillcolor=grey]
	}
	{ node [shape=box style ="filled,rounded" fillcolor=lightblue color = transparent]
		duser [label = "user"]
		guix [label="guix"]
	}
	{ node [shape=box style ="filled" fillcolor=lightblue color = transparent]
		du1pkgs [label = "user packages"]
	}
	subgraph cluster_guixdeb {
		label = "GNU Guix Installed on Debian"
		labelloc = "t"
		style = filled fillcolor= azure2 color = transparent
		duser -> dpkgs  [ label = "/usr/bin" ]
		duser -> guix  [ label = " ~/.config/guix/latest  " ]
		duser -> du1pkgs  [ label = " ~/.guix-profile  " ]
		subgraph cluster_debstore {
			label = "Guix Store /gnu/store"
			labelloc = "b"
			style = filled fillcolor= tan color = transparent
			du1pkgs
			guix
		}
		{ rank=same debs -> guixd2 [style=invis] }
		du1pkgs -> guixd2  [dir = back ltail=cluster_debstore ]
	}
	guix -> guixd2
	// source & hydra
	subgraph cluster_pkgsource {
		label = "Developer"
		labelloc = "t"
		style = filled fillcolor= azure2 color = transparent
		pkgsource
	}
	subgraph cluster_hydra {
		label = "Guix Hydra"
		style = filled fillcolor= azure2 color = transparent
		substitutes
	}
	// guixSD
	{ node [shape=box style = filled fillcolor=pink color = transparent]
		spkgs [label = "system packages"]
	}
	{ node [shape=box style ="filled,rounded" fillcolor=pink color = transparent]
		guixd [label = "Guix build daemon"]
		guixs [label = "Guix system services"]
	}
	{ node [shape=box style ="filled,rounded" fillcolor=lightblue color = transparent]
		user [label = "user"]
		guix2 [label="guix"]
	}
	{ node [shape=box style ="filled" fillcolor=lightblue color = transparent]
		u1pkgs [label = "user packages"]
	}
	subgraph cluster_guixSD {
		label = "GNU Guix System Distribution (GuixSD)"
		labelloc = "t"
		style = filled fillcolor= azure2 color = transparent
		user -> guix2 [ label = " ~/.config/guix/latest  " ]
		user -> u1pkgs  [ label = " ~/.guix-profile  " ]
		user -> spkgs [ label = " /run/current-system/profile/bin  "]
		subgraph cluster_guixstore {
			label = "Guix Store /gnu/store"
			labelloc = "b"
			style = filled fillcolor= tan color = transparent
			guix2
			u1pkgs
			spkgs
		}
		u1pkgs -> guixd  [dir = back ltail=cluster_guixstore ]
		{ rank=same guixd -> guixs [style=invis] }
	}
	guix2 -> guixd
	// source & hydra & guix & guixSD connections
	pkgsource -> substitutes [lhead=cluster_hydra ltail=cluster_pkgsource]
	pkgsource -> guixd [ltail=cluster_pkgsource]
	substitutes -> guixd [ltail=cluster_hydra]
	pkgsource -> guixd2 [ltail=cluster_pkgsource]
	substitutes -> guixd2 [ltail=cluster_hydra]
}