ToDo: merge this with Schroot

debian-cage.png

Contents

  1. PACKAGES STUCK WITH SCHROOT
    1. Preparing environment for your caged Debian packages
      1. Installing the caged Debian base
      2. Preparing caging
      3. Checking caging
      4. Accessing caged public user
      5. Accessing private caged (root)
    2. Basic Debian packaging configurations
      1. Adjusting the "/etc/bash.bashrc" file
      2. Adjusting the "/etc/apt/sources.list" file
      3. Adjusting the "/etc/lintianrc" file
      4. Enabling the OpenPGP key to sign packages

PACKAGES STUCK WITH SCHROOT

Allows you to configure chroots without requiring root credentials.

For a better knowledge on the subject:

wiki.debian.org/Schroot

wiki.debian.org/Debootstrap

Preparing environment for your caged Debian packages

jail.png

To start the installations, we will download the following packages: 

# apt install debootstrap schroot

Once installed, we will edit the /etc/schroot/schroot.conf file. 

# cp /etc/schroot/schroot.conf /etc/schroot/schroot.conf.old

# editor /etc/schroot/schroot.conf

{*} editor = your favorite text editor: nano, vim, mcedit, etc...

In this model, we will do this in the amd64 architecture, but you can change or create it in the i386 architecture.

Copy and paste into the file.

[unstable-amd64]
description=debian unstable amd64
type=directory
directory=/srv/chroot/unstable-amd64
users=your-username
root-groups=root
preserve-environment=true

Installing the caged Debian base

schroot.png 

# mkdir -p /srv/chroot/unstable-amd64

# debootstrap --arch amd64 unstable /srv/chroot/unstable-amd64 https://deb.debian.org/debian

Preparing caging

# chroot /srv/chroot/unstable-amd64

# echo proc /proc proc defaults 0 0 >> /etc/fstab

After these settings, type "exit" or press "Ctrl+D" to close everything.

Checking caging

user@debian: ~$ schroot -l
chroot:unstable-amd64

Accessing caged public user

user@debian:~$ schroot -c unstable-amd64

Accessing private caged (root)

user@debian:~$ schroot -c unstable-amd64 -u root

Basic Debian packaging configurations

Thanks to Eriberto and I recommend everyone to access this link http://debianet.com.br (Portuguese - Brazil) for more details on how to package your software in Debian.

We will do root access in the schroot configured to install some important packages for Debian packaging. 

user@debian:~$ schroot -c unstable-amd64 -u root

{*} editor = your favorite text editor: nano, vim, mcedit, etc...

Adjusting the "/etc/bash.bashrc" file

(unstable-amd64)root@debian:~# editor /etc/bash.bashrc

Insert at the end of the file /etc/bash.bashrc

alias ls="ls --color=auto"
alias tree="tree -aC"
alias debuildsa="dpkg-buildpackage -sa -k0987654321ABC1234567890DFG0987654321HIJL" # --> your OpenPGP key.
alias uscan="uscan --verbose --report"
alias apt-cache="LANG=C apt-cache"
alias man="LANG=C man"
export DEBFULLNAME="put-your-full-name"
export DEBEMAIL="put-your-email"
export EDITOR="put-your-favorite-text-editor"
export QUILT_PATCHES="debian/patches"
export QUILT_DIFF_ARGS="--no-timestamps --no-index -pab"
export QUILT_REFRESH_ARGS="--no-timestamps --no-index -pab"
mount /proc

Save and close.

Adjusting the "/etc/apt/sources.list" file

(unstable-amd64)root@debian:~# editor /etc/apt/sources.list

Edit the file, duplicate the existing line and change the beginning of the second line from "deb" to "deb-src". The end result will be: 

deb https://deb.debian.org/debian unstable main
deb-src https://deb.debian.org/debian unstable main

Save, close and update: 

(unstable-amd64)root@debian:~# apt update && apt upgrade

We can now install additional procedures for Debian packaging. 

(unstable-amd64)root@debian:~# apt install autopkgtest blhc devscripts dh-make dput-ng how-can-i-help locales quilt renameutils spell splitpatch tree

(unstable-amd64)root@debian:~# dpkg-reconfigure locales tzdata

locales.png

It is recommended that resetting locales leave "C.UTF-8" as the default. 

(unstable-amd64)root@debian:~# apt autoremove && apt autoclean

Adjusting the "/etc/lintianrc" file

(unstable-amd64)root@debian:~# editor /etc/lintianrc

Enable the following lines: 

display-info = yes
pedantic = yes
display-experimental = yes
color = auto

Enabling the OpenPGP key to sign packages

Edit the /etc/devscripts.conf file and enter your OpenPGP key on the DEBSIGN_KEYID line and activate. 

(unstable-amd64)root@debian:~# editor /etc/devscripts.conf

DEBSIGN_KEYID=0987654321ABC1234567890DFG0987654321HIJL

Save and close. With that, schroot is ready for Debian packaging and you don't need to be root to get the job done.

NOTE: If an error message occurs when you are doing an "update/dist-upgrade" mentioning: 

dpkg: unrecoverable fatal error, aborting:
 unknown system group 'Debian-exim' in statoverride file; the system group got removed
 before the override, which is most probably a packaging bug, to recover you
 can remove the override manually with dpkg-statoverride

To resolve, you might need to remove the statoverride entry. 

(unstable-amd64)root@debian:~# dpkg-statoverride --list | grep Debian-exim
(unstable-amd64)root@debian:~# dpkg-statoverride --remove /etc/exim4/passwd.client

This wiki is a support and documentation resource for the Debian project. You are free to make improvements and corrections to this published content.

CategorySystemAdministration | CategoryVirtualization