$Id$
This document describes the steps required in order to prevent Slack packaged for Debian Linux from silently auto-updating itself.
It is assumed that all commands are run as root.
- Create the global configuration file:
cat <<EOF >/etc/default/slack repo_add_once="false" repo_reenable_on_distupgrade="false" EOF # Forbid future changes to the file: chattr +i /etc/default/slack
- Add the necessary diversions (will affect package files once those are installed):
There's an alternative method to prevent packages from installing new sources under
mkdir -p /etc/apt/sources.list.d.disabled dpkg-divert --local --rename --divert /etc/apt/sources.list.d.disabled/slack.list /etc/apt/sources.list.d/slack.list mkdir -p /etc/cron.daily.disabled dpkg-divert --local --rename --divert /etc/cron.daily.disabled/slack /etc/cron.daily/slack
/etc/apt/sources.list.d: one needs to add a file to/etc/dpkg/dpkg.cfg.d/(named, let's say,no-new-sources), with the following contents:# # /etc/dpkg/dpkg.cfg.d/no-new-sources # # vim:ft=conf: # # Prevent packages from installing new sources under /etc/apt/sources.list.d # path-exclude=/etc/apt/sources.list.d/* - Install the package as usual:
dpkg -i slack-desktop-3.3.3-amd64.deb
- Apt may still have Slack's GPG keys present in its trusted database
(
/etc/apt/trusted.gpg):If this is the case, delete the keys:$ apt-key list ... pub rsa4096 2014-01-13 [SCEA] [expires: 2019-01-12] 418A 7F2F B0E1 E6E7 EABF 6FE8 C2E7 3424 D590 97AB uid [ unknown] packagecloud ops (production key) <ops@packagecloud.io> sub rsa4096 2014-01-13 [SEA] [expires: 2019-01-12] pub rsa4096 2016-02-18 [SCEA] DB08 5A08 CA13 B8AC B917 E0F6 D938 EC0D 0386 51BD uid [ unknown] https://packagecloud.io/slacktechnologies/slack (https://packagecloud.io/docs#gpg_signing) <support@packagecloud.io> sub rsa4096 2016-02-18 [SEA] ...apt-key del D59097AB apt-key del 038651BD
- That's it.