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Re: URLs of substitutes

From: Christopher Baines
Subject: Re: URLs of substitutes
Date: Thu, 14 Sep 2023 10:03:57 +0100
User-agent: mu4e 1.10.5; emacs 28.2

Roman Riabenko via <> writes:

> Is it possible to get a URL for a substitute, for example for the Linux
> kernel?
> I am trying to troubleshoot connection to a substitute sever with my
> tunnel broker, which is slow for this server for some reason and
> eventually times out when running `guix system reconfigure
> /etc/config.scm`. I considered showing wget output to the technical
> support as an example but do not know how to find the URL.

The proper way to do this is to fetch the narinfo, and then get the URL
from that, but generally you can take the filename in the store, and
then add it on to . For example:

→ guix build --no-grafts linux-libre

→ wget
--2023-09-14 10:03:11--
Resolving ( 2a0c:e300::58,
Connecting to 
(|2a0c:e300::58|:443... connected.
HTTP request sent, awaiting response... 200 OK
Length: 109569109 (104M) [text/plain]
Saving to: ‘1xw4p9gnvmnvvifw07y588i9w92gw7yl-linux-libre-6.4.12’

 104.49M  3.06MB/s    in 34s

2023-09-14 10:03:44 (3.12 MB/s) - 
‘1xw4p9gnvmnvvifw07y588i9w92gw7yl-linux-libre-6.4.12’ saved 

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