Caio downloads the package's list:

caio@quick:~$ mkdir per-tizio-1 ; cd per-tizio-1

caio@quick:~/per-tizio-1$ wget -O main.Packages.gz http://DEBIANMIRROR/debian/dists/RELEASENAME/main/binary-i386/Packages.gz

caio@quick:~/per-tizio-1$ wget -O contrib.Packages.gz http://DEBIANMIRROR/debian/dists/RELEASENAME/contrib/binary-i386/Packages.gz

caio@quick:~/per-tizio-1$ wget -O non-free.Packages.gz http://DEBIANMIRROR/debian/dists/RELEASENAME/non-free/binary-i386/Packages.gz

caio@quick:~/per-tizio-1$ wget http://DEBIANMIRROR/debian/dists/RELEASENAME/Release

caio@quick:~/per-tizio-1$ wget -O security.main.Packages.gz http://security.debian.org/dists/RELEASENAME/updates/main/binary-i386/Packages.gz

caio@quick:~/per-tizio-1$ wget -O security.contrib.Packages.gz http://security.debian.org/dists/RELEASENAME/updates/contrib/binary-i386/Packages.gz

caio@quick:~/per-tizio-1$ wget -O security.non-free.Packages.gz http://security.debian.org/dists/RELEASENAME/updates/non-free/binary-i386/Packages.gz

caio@quick:~/per-tizio-1$ wget -O security.Release http://security.debian.org/dists/RELEASENAME/updates/Release

and he get them to Tizio

Tizio expands the files *Packages.gz and copies all the files in /var/lib/apt/lists/ with the correct names:

root@slow:~# gunzip *.Packages.gz

root@slow:~# cp main.Packages /var/lib/apt/lists/DEBIANMIRROR_debian_dists_RELEASENAME_main_binary-i386_Packages

root@slow:~# cp contrib.Packages /var/lib/apt/lists/DEBIANMIRROR_debian_dists_RELEASENAME_contrib_binary-i386_Packages

root@slow:~# cp non-free.Packages /var/lib/apt/lists/DEBIANMIRROR_debian_dists_RELEASENAME_non-free_binary-i386_Packages

root@slow:~# cp Release /var/lib/apt/lists/DEBIANMIRROR_debian_dists_RELEASENAME_Release

root@slow:~# cp security.main.Packages /var/lib/apt/lists/security.debian.org_dists_RELEASENAME_updates_main_binary-i386_Packages

root@slow:~# cp security.contrib.Packages /var/lib/apt/lists/security.debian.org_dists_RELEASENAME_updates_contrib_binary-i386_Packages

root@slow:~# cp security.non-free.Packages /var/lib/apt/lists/security.debian.org_dists_RELEASENAME_updates_non-free_binary-i386_Packages

root@slow:~# cp security.Release /var/lib/apt/lists/security.debian.org_dists_RELEASENAME_updates_Release

Tizio adds the below lines (if he have not them) at the file /etc/apt/sources.list; he must control that they are after the lines about him CD-ROM:

deb http://DEBIANMIRROR/debian RELEASENAME main contrib non-free
deb http://security.debian.org/ RELEASENAME/updates main contrib non-free

now he runs the command:

root@slow:~# apt-get update

root@slow:~# apt-get -y --print-uris dist-upgrade > packages_list.txt

If he wants install or upgrade only some specific packages, he must replace: apt-get -y --print-uris dist-upgrade with: apt-get -y --print-uris install NAMES_OF_PACKAGES

The file packages_list.txt contents some messages of apt (they are only in part in the below example), and the URIs of all the packages to be going install:

Lettura della lista dei pacchetti in corso...
Generazione dell'albero delle dipendenze in corso...
I seguenti pacchetti NUOVI (NEW) saranno installati:
apt-index-watcher [...]
I seguenti pacchetti sono stati mantenuti alla versione attuale:
gdk-imlib1 [...]
I seguenti pacchetti saranno aggiornati:
alsa-base [...]
173 aggiornati, 4 installati, e 1 non aggiornati.
È necessario prendere 299MB/299MB di archivi.
Dopo l'estrazione, verranno occupati 11,9MB di spazio su disco.
'cdrom:[Debian GNU/Linux testing _Etch_ - Official Snapshot i386 Binary-2 (20060918)]/pool/main/r/root-tail/root-tail_1.2-2_i386.deb' root-tail_1.2-2_i386.deb 20952 8403dcbcf6ccdd43decf44ffe13
1b5b9
'http://ftp.it.debian.org/debian/pool/main/a/alsa-driver/alsa-base_1.0.12-1_all.deb' alsa-base_1.0.12-1_all.deb 166330 d07527f4d209e4887d0bcb907d135891
[...]

the format of line about packages is: 'URI' FILE_NAME FILE_DIMENSION FILE_MD5_HASH

Tizio cancels the lines with apt's messages, the lines about packages that he has on CD-ROM and he must conserve only the URIs of packages that he must download:

root@slow:~# cat packages_list.txt | egrep "^'http:" | sed "s/'//" | sed "s/'.*//" > url_list.txt

Tizio gives url_list.txt to Caio, Caio runs:

caio@quick:~$ mkdir per-tizio-2 ; cd per-tizio-2

caio@quick:~/per-tizio-2$ wget -i url_list.txt

and he copies the packages on one (or more) CD.

Tizio receives from Caio the CD. It is not a Debian CD and he cannot use it directly, but he must copy the packages in /var/cache/apt/archives/ and he can install them (or he can create a local personal mirror with apt-move).