Re: Unexpected results with Guix.

[Tobias Geerinckx-Rice]

Jone,

Tobias Geerinckx-Rice 写道：
> Jone 写道：
> > I used to deal only with rpm package manager - there 
> > unnecessary
> > dependencies would be removed automatically.
> > How do I get the same result with Guix? I don't have much space 
> > on
> > the
> > partition =)
>
> Very quick answer: ‘guix gc’.

OK, slightly longer answer since we can't find the car keys.

In this case, ‘guix gc -d’ is probably what you want.  It will 
delete old profiles and all store entries not used by the 
remaining profile(s).

/gnu/store is like a cache/memoized store/whatever slightly 
inaccurante memory management metaphor you prefer: when you 
install a package, it is downloaded or built into the store, and a 
new profile created that refers to it.

When you uninstall a package with ‘guix package -r’, only that 
reference is removed[0], but the store entry is not.  It might 
come in handy later, or be reused.  To actually delete these 
entries forever, you need to collect garbage (that's what GC 
stands for).  When you happen to install the exact same version of 
icecat in future, you'll have to download or build it again.

Apologies for this rushed explanation; we've found the keys :-)

Kind regards,

T G-R

[0]: Actually, a new profile is created that doesn't refer to 
icecat anymore.  Copy-on-write here, too.

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