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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




DescriptionCommand
1Update the package cache


Code Block
sudo apt-get update


2Install pre-requisites (apt-transport-https, lsb-release)


Code Block
sudo apt-get install apt-transport-https lsb-release


3Stop zend - use the command relevant to your installation

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

Code Block
sudo systemctl stop zend

For installations using monit

Code Block
sudo monit stop zend

For installations manually running zend

Code Block
zen-cli stop && sleep 5


4

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


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


5Pull 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

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

Alternate key server if the one above fails to respond

Code Block
gpg --keyserver keyserver.ubuntu.com  --recv 219F55740BBF7A1CE368BA45FB7053CE4991B669


6Export the gpg key and add to apt, this enables package verification


Code Block
gpg --export 219F55740BBF7A1CE368BA45FB7053CE4991B669 | sudo apt-key add -


7

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


Code Block
sudo apt-get update


8

Install the zend daemon


Code Block
sudo apt-get install zen -y


9

Download the required parameters for zend


NOTE: This will only download parameters that are missing


Code Block
zen-fetch-params


10

Check zend's version


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




Code Block
zend --version


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zenops@node01:~$ zend --version

Zen Daemon version v4.1.0

Copyright (C) 2009-2023 The Bitcoin Core Developers
Copyright (C) 2015-2023 The Zcash Developers
Copyright (C) 2015-2023 Zdeveloper.org
Copyright (C) 2015-2023 Zen Blockchain Foundation

This is experimental software.

Distributed under the MIT software license, see the accompanying file COPYING
or <http://www.opensource.org/licenses/mit-license.php>.

This product includes software developed by the OpenSSL Project for use in the
OpenSSL Toolkit <https://www.openssl.org/> and cryptographic software written
by Eric Young.


11

Start zend monitoring services after the upgrade has been completed

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

Code Block
sudo systemctl start zend

For installations using monit

Code Block
sudo monit start zend

For installations manually running zend

Code Block
zend



Restarting zentracker
12Restart zentracker after zend has restarted

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

Code Block
sudo systemctl restart zentracker

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

Code Block
pm2 restart 0



Migrate zend Installation From Source to APT Repository

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