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List:       debian-user
Subject:    Re: where are the actual ".deb" packages? all I see are "pkgcache.bin" and "srcpkgcache.bin" . . .
From:       Tim Woodall <debianuser () woodall ! me ! uk>
Date:       2023-02-27 21:47:45
Message-ID: alpine.DEB.2.21.2302272136210.5656 () einstein ! home ! woodall ! me ! uk
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On Sun, 26 Feb 2023, Greg Wooledge wrote:

> On Sun, Feb 26, 2023 at 05:28:44PM +0000, Albretch Mueller wrote:
>>  Basically, I am trying to download all packages that are part of the
>> installation dependencies of a given one into a directory of my
>> choosing to then install packages on an unexposed machine.
>
> The tricky part here is that the packages on machine A are not necessarily
> the same as on machine B.  So, installing package P1 on machine A may
> need dependencies P2, P3 and P4.  But on machine B, it may need dependencies
> P3, P4 and P5 instead.
>
> If you ignore that, then the obvious answer is:
>
> A# apt-get --download-only --reinstall install P1
> A# cd /var/cache/apt/archives
> A# scp *.deb B:/var/cache/apt/archives/
> A# ssh root@B
>
> B# cd /var/cache/apt/archives
> B# apt-get install ./P1.deb
>
> That should utilize the cached dependent packages P2, P3, P4 which are
> located in /v/c/a/a on machine B.
>
> If additional dependencies are needed, you'll have to fetch those by
> hand.
>
>

If you want to download all the dependencies (except essential packages)
then you can point to an empty dir.

I do something like:

   rm -f ${APT_WORK}/archives/*.deb
   APT_CONFIG=${APT_CONFIG} \
   DEBIAN_FRONTEND=noninteractive \
     apt-get -q -y install -d \
         -o APT::Install-Recommends=false \
       $@

where APT_CONFIG looks something like:
   cat <<EOF >${APT_CONFIG}
APT::Architecture "${ARCH}";
APT::Install-Recommends "false";

Dir::Etc::PreferencesParts "${APT_WORK}/preferences.d";
Dir::Etc::SourceParts "${APT_WORK}/sources.list.d";
Dir::Etc::TrustedParts "${aptdir}/trusted.d";
Dir::Etc::Parts "${aptdir}/conf.d";

Dir::State::Lists "${APT_WORK}/lists";
Dir::State::Status "${APT_WORK}/status";
Dir::Cache::Archives "${APT_WORK}/archives";
Dir::Cache::srcpkgcache "${APT_WORK}/srcpkgcache";
Dir::Cache::pkgcache "${APT_WORK}/pkgcache";
EOF

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