From mboxrd@z Thu Jan  1 00:00:00 1970
From: ludo@gnu.org (Ludovic =?utf-8?Q?Court=C3=A8s?=)
Subject: Re: Failed to set up the build environment =?utf-8?Q?for=E2=80=A6?=
Date: Wed, 19 Mar 2014 16:46:42 +0100
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In-Reply-To: <87txaue9dp.fsf@serenity.home> (Alex Sassmannshausen's message of
	"Wed, 19 Mar 2014 12:05:38 +0100")
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To: Alex Sassmannshausen <alex.sassmannshausen@gmail.com>
Cc: guix-devel <guix-devel@gnu.org>

Alex Sassmannshausen <alex.sassmannshausen@gmail.com> skribis:

> All works as expected (substituting the required binaries etc.) until
> the 'module-import' build stage, where I get the following error:
> -----
> @ build-started /gnu/store/byc1s5m1zfyxjhkwcj7j6226i459zbwa-module-import=
.drv - i686-linux /usr/local/var/log/guix/drvs/by//c1s5m1zfyxjhkwcj7j6226i4=
59zbwa-module-import.drv.bz2
> guix package: error: build failed: failed to set up the build environment=
 for `/gnu/store/byc1s5m1zfyxjhkwcj7j6226i459zbwa-module-import.drv'
> -----

Never seen that.  My reading of the code is that this can happen if
initChild (in build.cc) fails (see the occurrences of SysError there.)
Do you see one of these error messages before?  Could it be that the
daemon is not running as root, and so chroot(2) fails?

> In the log refreference, you can see '/gnu/store/byc1s5=E2=80=A6' and
> '=E2=80=A6/drvs/by//c1s5=E2=80=A6.'.  In the error message you can then s=
ee
> `/gnu/store/byc1s5m=E2=80=A6'.
>
> It looks as though some path truncation takes place here.

No, that=E2=80=99s expected: the log file for byc1s=E2=80=A6 is called by/c=
1s=E2=80=A6.

HTH,
Ludo=E2=80=99.