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Migrate zend Installation From Source to APT Repository

Migrate zend Installation From Source to APT Repository

Sept 20, 2023

NOTICE: Support for Ubuntu 18.04 and Debian 8 and 9 have been deprecated with ZEND 4.1.0. These distributions will no longer be able to upgrade using apt. You can still build ZEND from source for these distributions.

Logged in as the non-root user

  • Add the zen apt repository

  • Install zen



Description

Command

Description

Command

1

Update the package cache

sudo apt-get update
2

Install pre-requisites (apt-transport-https, lsb-release)

sudo apt-get install apt-transport-https lsb-release
3

Stop zend - use the command relevant to your installation

For installations using systemd (assumes the unit file is named 'zend.service')

sudo systemctl stop zend

For installations using monit

sudo monit stop zend

For installations manually running zend

zen-cli stop && sleep 5
4

Add the Horizen repository to the 'sources.list' file

echo 'deb https://HorizenOfficial.github.io/repo/ '$(lsb_release -cs)' main' | sudo tee /etc/apt/sources.list.d/zen.list
5

Pull the gpg key used to sign Horizen packages

Pulling the gpg key may take some time, if it times out, run it again until it has been imported

gpg --keyserver ha.pool.sks-keyservers.net --recv 219F55740BBF7A1CE368BA45FB7053CE4991B669

Alternate key server if the one above fails to respond

gpg --keyserver keyserver.ubuntu.com --recv 219F55740BBF7A1CE368BA45FB7053CE4991B669
6

Export the gpg key and add to apt, this enables package verification

gpg --export 219F55740BBF7A1CE368BA45FB7053CE4991B669 | sudo apt-key add -
7

Update the package cache again with the Horizen repository now added as a source

sudo apt-get update
8

Install the zend daemon

sudo apt-get install zen -y
9

Download the required parameters for zend



NOTE: This will only download parameters that are missing

zen-fetch-params
10

Check zend's version



***CHECK FOR "Zen Daemon version v4.1.0"***





zend --version
11

Start zend monitoring services after the upgrade has been completed

For installations using systemd (assumes the unit file is named 'zend.service')

sudo systemctl start zend

For installations using monit

sudo monit start zend

For installations manually running zend

zend
12

Restarting zentracker

13

Restart zentracker after zend has restarted

For installations using systemd (assumes the unit file is named 'zentracker.service')

sudo systemctl restart zentracker

For installations using pm2 (assumes the tracker is running as the only or first process, numbered 0)

pm2 restart 0