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From: Pierre-Elliott =?iso-8859-1?Q?B=E9cue?= <becue@crans.org>
Newsgroups: linux.debian.maint.python
Subject: Re: apt.Cache.update with alternative sources.list
Date: Thu, 22 Mar 2018 08:30:01 +0100
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Le mercredi 21 mars 2018 =E0 23:12:18+0100, Ole Streicher a =E9crit=A0:
> Hi,
>=20
> I need some access (as normal user) to an apt cache with an alternative
> sources.list (those in /etc/blends/ installed by blends-dev), but I have
> problems to find out how to use it.
>=20
> I first tried to just specify the alternative source file:
>=20
> ```
> >>> import apt
> >>> c =3D apt.Cache()
> >>> c.update('sources_list=3D'/etc/blends/sources.list.testing')
> LockFailedException: Failed to lock /var/lib/apt/lists/lock
> ```
>=20
> Then I tried to use an alternative root directory:
>=20
> ```
> >>> import apt
> >>> c =3D apt.Cache(rootdir=3D'/tmp/myapttmp')
> >>> c.update('sources_list=3D'/etc/blends/sources.list.testing')
> FetchFailedException: W:GPG error: http://ftp.debian.org/debian testing I=
nRelease: The following signatures couldn't be verified because the public =
key is not available: NO_PUBKEY 7638D0442B90D010, E:The repository 'http://=
ftp.debian.org/debian testing InRelease' is not signed.
> ```
>=20
> To which place in the new root directory do I need to copy the keyring?
> I tried <<rootdir>>/usr/share/keyrings/ but this didn't work.
>=20
> And/or how can I disable authentication (--allow-unauthenticated,
> resp. APT::Get::AllowUnauthenticated)?

AFAIK, the apt trusted keyring is normally in /etc/apt/trusted.gpg +
/etc/apt/trusted.gpg.d

So, as long as you're sure the rootdir behaves as you think this should help
you to chose the appropriate place.

--=20
Pierre-Elliott B=E9cue
GPG: 9AE0 4D98 6400 E3B6 7528  F493 0D44 2664 1949 74E2
It's far easier to fight for one's principles than to live up to them.

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