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Upgrade zend daemon from source

Upgrade zend daemon from source

Oct 12, 2021

Use this page for updating the zend daemon directly from source

  • Upgrading the zend daemon

  • For Secure Nodes, restart the Secure Node Tracker

 

NOTE: These steps assume you have built from source previously, be sure to install the dependencies for your distribution if not - https://github.com/HorizenOfficial/zen/blob/master/README.md

 

Description

Command

Description

Command

1

Upgrading the zend daemon

2

Change (cd) to the 'horizen' directory

NOTE: this may be 'zencash' on older installations from source

cd ~/horizen
3

Remove (rm) the original 'zen' directory

rm -r zen
4

Clone the github repository

git clone https://github.com/HorizenOfficial/zen.git
5

Change (cd) to the 'zen' directory

cd zen

 

6

Build and wait for completion...

./zcutil/build.sh -j$(nproc)
7

Download the required parameters for zend

 

NOTE: This will only download parameters that are missing

./zcutil/fetch-params.sh
8

Stop zend and enforce a 30 second wait before the next command to ensure zend has fully shutdown

If zen-cli and zend have previously been copied to /usr/bin/

zen-cli stop && sleep 5

If zen-cli and zend have not previously been copied to /usr/bin/

./src/zen-cli stop && sleep 5
9

Copy zend and zen-cli to the /usr/bin/ directory

sudo cp src/{zen-cli,zend} /usr/bin/
10

Check zend's version

 

***CHECK FOR "Zen Daemon version v2.0.24", after October 09, 2021,***

 

NOTE: Zend version 2.0.23 will deprecate at block #1027500, approximately on Wed, 27 Oct 2021 09:35:02 GMT

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 the Node Tracker after zend has started

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