Building system for i686

Building system for i686

[Ricardo Wurmus]

Hi Guix,

as my i686 laptop has only about 1G of memory and thus fails to build a
great many packages (including the guix package itself) I wanted to
build its configuration on my x86_64 laptop.  I then copied the system
closure to the i686 laptop with “guix copy”.

On the i686 target I ran “sudo -E guix system reconfigure config.scm”
and expected it to do little more than switching to the transferred
system item.  Instead it started building Guix, which fails on my i686
machine (not enough memory).

Is this behaviour a bug?

--
Ricardo

GPG: BCA6 89B6 3655 3801 C3C6  2150 197A 5888 235F ACAC
https://elephly.net

Re: Building system for i686

[Marius Bakke]

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Ricardo Wurmus <rekado@elephly.net> writes:

> Hi Guix,
>
> as my i686 laptop has only about 1G of memory and thus fails to build a
> great many packages (including the guix package itself) I wanted to
> build its configuration on my x86_64 laptop.  I then copied the system
> closure to the i686 laptop with “guix copy”.
>
> On the i686 target I ran “sudo -E guix system reconfigure config.scm”
> and expected it to do little more than switching to the transferred
> system item.  Instead it started building Guix, which fails on my i686
> machine (not enough memory).

There is a caveat with `guix copy`: if you copy the grafted derivation
(as the `guix system build` closure would be) the receiving system won't
recognize it since it only computes the ungrafted derivations.

If you build the system with --no-grafts, I suspect things will work as
expected.

> Is this behaviour a bug?

Probably :)

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`guix copy` vs grafts

[Marius Bakke]

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Marius Bakke <mbakke@fastmail.com> writes:

> Ricardo Wurmus <rekado@elephly.net> writes:
>
>> Hi Guix,
>>
>> as my i686 laptop has only about 1G of memory and thus fails to build a
>> great many packages (including the guix package itself) I wanted to
>> build its configuration on my x86_64 laptop.  I then copied the system
>> closure to the i686 laptop with “guix copy”.
>>
>> On the i686 target I ran “sudo -E guix system reconfigure config.scm”
>> and expected it to do little more than switching to the transferred
>> system item.  Instead it started building Guix, which fails on my i686
>> machine (not enough memory).
>
> There is a caveat with `guix copy`: if you copy the grafted derivation
> (as the `guix system build` closure would be) the receiving system won't
> recognize it since it only computes the ungrafted derivations.

To clarify: I think what happens is that "guix system/build" builds the
'normal' derivation, then afterwards computes and builds the grafts.

If the first is not present locally, it will be built even if the
grafted derivation is already in the store.

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Re: Building system for i686

[Daniel Pimentel]

I have a Thinkpad X60s with GuixSD runing Emacs-exwm and a lot of 
packages (emacs, git, lilypond, texlive, gimp, inkscape, ...) but 
libreoffice not install because the libzmf isn't building. Follow 
errors:

builder for 
`/gnu/store/5pwpi8dnrx5r2fkv0gpzm80vz0gcf35h-libzmf-0.0.2.drv' failed 
with exit code 1
cannot build derivation 
`/gnu/store/2pxrlgkc9s5qyg5sbhy92bg5ilcqs2ji-libreoffice-5.3.7.2.drv': 1 
dependencies couldn't be built
guix package: error: build failed: build of 
`/gnu/store/2pxrlgkc9s5qyg5sbhy92bg5ilcqs2ji-libreoffice-5.3.7.2.drv' 
failed

---
Daniel Pimentel (d4n1)

On 2017-12-26 15:35, Ricardo Wurmus wrote:
> Hi Guix,
> 
> as my i686 laptop has only about 1G of memory and thus fails to build a
> great many packages (including the guix package itself) I wanted to
> build its configuration on my x86_64 laptop.  I then copied the system
> closure to the i686 laptop with “guix copy”.
> 
> On the i686 target I ran “sudo -E guix system reconfigure config.scm”
> and expected it to do little more than switching to the transferred
> system item.  Instead it started building Guix, which fails on my i686
> machine (not enough memory).
> 
> Is this behaviour a bug?
> 
> --
> Ricardo
> 
> GPG: BCA6 89B6 3655 3801 C3C6  2150 197A 5888 235F ACAC
> https://elephly.net

Re: Building system for i686

[Ludovic Courtès]

Hi Ricardo,

Ricardo Wurmus <rekado@elephly.net> skribis:

> as my i686 laptop has only about 1G of memory and thus fails to build a
> great many packages (including the guix package itself) I wanted to
> build its configuration on my x86_64 laptop.  I then copied the system
> closure to the i686 laptop with “guix copy”.

Could you check whether Guix can be built with Guile 2.2.3 on this
system?  The memory demand should be lower.

We should do whatever it takes to have Guix buildable with 1G of RAM
again.

Ludo’.