What is Rocky Linux?

Rocky Linux is an open-source operating system and one of the strongest replacement candidates for CentOS 8. It is a 100% binary-compatible release using the Red Hat Enterprise Linux (RHEL). Let us see how to migrate CentOS 8 Linux live server to Rocky Linux 8 using a shell script provided by the Rocky Linux project.

Step 1 – Backup CentOS 8

I started the migration process with backup. I do have nightly backups, but before upgrading, I made a snapshot to revert back when something goes wrong. In other words, keep verified backups.

Step 2 – Installing all updates on CentOS 8

Then I log in using the ssh command:
ssh user@cyburdial-php8-app1

Now, all we have to do is use the dnf command to apply all pending updates:
sudo dnf update

Finally, reboot the Linux box using the shutdown command or reboot command:
sudo reboot

Let us verify CentOS Linux 8 version using the cat command or more command/less command:
more /etc/centos-release

Step 3 – Installing git client on CentOS 8

We need git to install the migration script. Is git installed on the server? Let us find out. Execute the type command:
type -a git

Let us search for the git package, Execute:
dnf list git
dnf search git
dnf info git

Now, install git on your server with the help of the dnf utility, Execute:
sudo dnf install git
type -a git

Clone the repo to install migration tool called rocky-tool

Finally, we need to clone the rocky-tools repo with the help of the git command:
cd /tmp/
git clone https://github.com/rocky-linux/rocky-tools.git
Getting ready for Rocky Linux migration

Step 4 – Migrating from CentOS 8 to Rocky Linux

1. Change the directory using cd command where rocky-tools cloned:
   cd /tmp/rocky-tools/migrate2rocky
2. Set up executable permissions using the chmod command:
   chmod -v +x migrate2rocky.sh
3. Start the migration from CentOS 8 to Rocky Linux by typing the migrate2rocky.sh command:
   ./migrate2rocky.sh -r
   
4. Follow on-screen instructions and wait for some time to finish the migration job. At the end you should see:Done, please reboot your system.
   A log of this installation can be found at /var/log/migrate2rocky.log

How to – Scratch install Vicidial on RockyLinux 8.5

This article goes over how to install vicidial on RockyLinux 8

sed -i 's/SELINUX=enforcing/SELINUX=disabled/g' /etc/selinux/config

Set Default Editor to nano:
yum -y install nano

nano /etc/bashrc

Then add this line at the bottom:
export EDITOR="nano"

timedatectl set-timezone America/New_York


rc.local not work:

chmod +x /etc/rc.d/rc.local
systemctl enable rc-local
systemctl start rc-local
systemctl status rc-local

yum check-update
yum -y install epel-release
reboot

yum update -y
reboot

yum groupinstall "Development Tools" -y

reboot

yum -y install https://dl.fedoraproject.org/pub/epel/epel-release-latest-8.noarch.rpm
yum -y install http://rpms.remirepo.net/enterprise/remi-release-8.rpm
yum -y install yum-utils
dnf module enable php:remi-7.4


sudo dnf install -y mariadb-server

sudo dnf -y install dnf-plugins-core
sudo dnf config-manager --set-enabled powertools


yum install -y php php-mcrypt php-cli php-gd php-curl php-mysql php-ldap php-zip php-fileinfo php-opcache wget unzip make patch gcc gcc-c++ subversion php php-devel php-gd gd-devel readline-devel php-mbstring php-mcrypt php-imap php-ldap php-mysql php-odbc php-pear php-xml php-xmlrpc curl curl-devel perl-libwww-perl ImageMagick libxml2 libxml2-devel httpd libpcap libpcap-devel libnet ncurses ncurses-devel screen kernel* mutt glibc.i686 certbot python3-certbot-apache mod_ssl openssl-devel newt-devel libxml2-devel kernel-devel sqlite-devel libuuid-devel sox sendmail lame-devel htop iftop perl-File-Which php-opcache libss7 mariadb-devel libss7* libopen* 

systemctl start mariadb
mysql_secure_installation
systemctl enable mariadb

systemctl stop mariadb
cp /etc/my.cnf /etc/my.cnf.original
echo "" > /etc/my.cnf

nano /etc/my.cnf ; copy the below config to this file.

####################################################################################################

[mysql.server]
user = mysql
#basedir = /var/lib

[client]
port = 3306 
socket = /var/lib/mysql/mysql.sock

[mysqld]
datadir = /var/lib/mysql
#tmpdir = /home/mysql_tmp
socket = /var/lib/mysql/mysql.sock
user = mysql
old_passwords = 0
ft_min_word_len = 3
max_connections = 800
max_allowed_packet = 32M
skip-external-locking
sql_mode="NO_ENGINE_SUBSTITUTION"

log-error = /var/log/mysqld/mysqld.log

query-cache-type = 1
query-cache-size = 32M

long_query_time = 1
#slow_query_log = 1
#slow_query_log_file = /var/log/mysqld/slow-queries.log

tmp_table_size = 128M
table_cache = 1024

join_buffer_size = 1M
key_buffer = 512M
sort_buffer_size = 6M
read_buffer_size = 4M
read_rnd_buffer_size = 16M
myisam_sort_buffer_size = 64M

max_tmp_tables = 64

thread_cache_size = 8
thread_concurrency = 8

# If using replication, uncomment log-bin below
#log-bin = mysql-bin

[mysqldump]
quick
max_allowed_packet = 16M

[mysql]
no-auto-rehash

[isamchk]
key_buffer = 256M
sort_buffer_size = 256M
read_buffer = 2M
write_buffer = 2M

[myisamchk]
key_buffer = 256M
sort_buffer_size = 256M
read_buffer = 2M
write_buffer = 2M

[mysqlhotcopy]
interactive-timeout

[mysqld_safe]
#log-error = /var/log/mysqld/mysqld.log
#pid-file = /var/run/mysqld/mysqld.pid

• mkdir /var/log/mysqld
• touch /var/log/mysqld/slow-queries.log
• chown -R mysql:mysql /var/log/mysqld
• systemctl restart mariadb

Install the Perl Modules
yum install -y perl-CPAN perl-YAML perl-libwww-perl perl-DBI perl-DBD-MySQL perl-GD perl-Env perl-Term-ReadLine-Gnu perl-SelfLoader perl-open.noarch

cpan -i Tk String::CRC Tk::TableMatrix Net::Address::IP::Local Term::ReadLine::Gnu Spreadsheet::Read Net::Address::IPv4::Local RPM::Specfile Spreadsheet::XLSX Spreadsheet::ReadSXC MD5 Digest::MD5 Digest::SHA1 Bundle::CPAN Pod::Usage Getopt::Long DBI DBD::mysql Net::Telnet Time::HiRes Net::Server Mail::Sendmail Unicode::Map Jcode Spreadsheet::WriteExcel OLE::Storage_Lite Proc::ProcessTable IO::Scalar Scalar::Util Spreadsheet::ParseExcel Archive::Zip Compress::Raw::Zlib Spreadsheet::XLSX Test::Tester Spreadsheet::ReadSXC Text::CSV Test::NoWarnings Text::CSV_PP File::Temp Text::CSV_XS Spreadsheet::Read LWP::UserAgent HTML::Entities HTML::Strip HTML::FormatText HTML::TreeBuilder Switch Time::Local Mail::POP3Client Mail::IMAPClient Mail::Message IO::Socket::SSL readline

cd /usr/bin/
curl -LOk http://xrl.us/cpanm
chmod +x cpanm


cpanm -f File::HomeDir
cpanm -f File::Which
cpanm CPAN::Meta::Requirements
cpanm -f CPAN
cpanm YAML
cpanm MD5
cpanm Digest::MD5
cpanm Digest::SHA1
cpanm readline


cpanm Bundle::CPAN
cpanm DBI
cpanm -f DBD::mysql
cpanm Net::Telnet
cpanm Time::HiRes
cpanm Net::Server
cpanm Switch
cpanm Mail::Sendmail
cpanm Unicode::Map
cpanm Jcode
cpanm Spreadsheet::WriteExcel
cpanm OLE::Storage_Lite
cpanm Proc::ProcessTable
cpanm IO::Scalar
cpanm Spreadsheet::ParseExcel
cpanm Curses
cpanm Getopt::Long
cpanm Net::Domain
cpanm Term::ReadKey
cpanm Term::ANSIColor
cpanm Spreadsheet::XLSX
cpanm Spreadsheet::Read
cpanm LWP::UserAgent
cpanm HTML::Entities
cpanm HTML::Strip
cpanm HTML::FormatText
cpanm HTML::TreeBuilder
cpanm Time::Local
cpanm MIME::Decoder
cpanm Mail::POP3Client
cpanm Mail::IMAPClient
cpanm Mail::Message
cpanm IO::Socket::SSL
cpanm MIME::Base64
cpanm MIME::QuotedPrint
cpanm Crypt::Eksblowfish::Bcrypt
cpanm Crypt::RC4
cpanm Text::CSV
cpanm Text::CSV_XS

cd /usr/src
wget http://download.vicidial.com/required-apps/asterisk-perl-0.08.tar.gz
tar xzf asterisk-perl-0.08.tar.gz
cd asterisk-perl-0.08
perl Makefile.PL
make all
make install 

dnf --enablerepo=powertools install libsrtp-devel -y
yum install -y elfutils-libelf-devel libedit-devel

cd /usr/src
wget http://downloads.sourceforge.net/project/lame/lame/3.99/lame-3.99.5.tar.gz
tar -zxf lame-3.99.5.tar.gz
cd lame-3.99.5
./configure
make
make install

cd /usr/src/
wget https://digip.org/jansson/releases/jansson-2.13.tar.gz
tar xvzf jansson*
cd jansson-2.13
./configure
make clean
make
make install 
ldconfig

UPDATE: 6/22/21 - Ty @Ankit for catching the wrong directiory below 

cd /usr/src/
wget https://downloads.asterisk.org/pub/telephony/dahdi-linux-complete/dahdi-linux-complete-current.tar.gz
tar xzf dahdi*
cd /usr/src/dahdi-linux-complete-3.1.0+3.1.0/
nano /usr/src/dahdi-linux-complete-3.1.0+3.1.0/linux/include/dahdi/kernel.h
remove #include: </linux/pci-aspm.h>
make
make install
make install-config
(if you get an error here about 4.18.0-305.7.1.el8_4.x86_64 missing then do "yum install *4.18.0-305.7.1.el8_4.x86_64")

yum install dahdi-tools-libs

cd tools
make clean
make
make install
make install-config

if it gives an error /usr/sbin/dahdi_cfg -vvvvvvvvvvvvv 
edit the file "system.conf.sample" in "system.conf"


cd /usr/src/
wget http://downloads.asterisk.org/pub/telephony/libpri/libpri-1.6.0.tar.gz
tar xzf libpri-1.6.0.tar.gz
cd /usr/src/libpri-1.6.0
make clean
make
make install

nano  /etc/php.ini
error_reporting  =  E_ALL & ~E_NOTICE
memory_limit = 128M
short_open_tag = On
max_execution_time = 330
max_input_time = 360
post_max_size = 100M
upload_max_filesize = 42M
default_socket_timeout = 360
date.timezone = Europe/Rome

cd /usr/src/
wget http://download.vicidial.com/required-apps/asterisk-13.29.2-vici.tar.gz
tar xzf asterisk-13.29.2-vici.tar.gz
cd /usr/src/asterisk-13.29.2/
./configure --libdir=/usr/lib64 --with-pjproject-bundled -with-jansson-bundled
make clean
make menuselect    ; ####### select "app_meetme" "res_http_websocket" and "res_srtp"
make
make install
make samples
make config


mkdir /usr/src/astguiclient
cd /usr/src/astguiclient
svn checkout svn://svn.eflo.net:3690/agc_2-X/trunk


mysql
SET GLOBAL connect_timeout=60;
CREATE DATABASE `asterisk` DEFAULT CHARACTER SET utf8 COLLATE utf8_unicode_ci;
CREATE USER 'cron'@'localhost' IDENTIFIED BY '1234';
GRANT SELECT,INSERT,UPDATE,DELETE,LOCK TABLES on asterisk.* TO cron@'%' IDENTIFIED BY '1234';
CREATE USER 'custom'@'localhost' IDENTIFIED BY 'custom1234';
GRANT SELECT,INSERT,UPDATE,DELETE,LOCK TABLES on asterisk.* TO custom@'%' IDENTIFIED BY 'custom1234';
GRANT SELECT,INSERT,UPDATE,DELETE,LOCK TABLES on asterisk.* TO cron@localhost IDENTIFIED BY '1234';
GRANT SELECT,INSERT,UPDATE,DELETE,LOCK TABLES on asterisk.* TO custom@localhost IDENTIFIED BY 'custom1234';
GRANT RELOAD ON *.* TO cron@'%';
GRANT RELOAD ON *.* TO cron@localhost;
GRANT RELOAD ON *.* TO custom@'%';
GRANT RELOAD ON *.* TO custom@localhost;
flush privileges;
use asterisk;
\. /usr/src/astguiclient/trunk/extras/MySQL_AST_CREATE_tables.sql
\. /usr/src/astguiclient/trunk/extras/first_server_install.sql
ALTER TABLE phones ALTER template_id SET DEFAULT '';
quit

cd /usr/src/astguiclient/trunk

perl install.pl


*Within the install.pl script make sure you Copy Asterisk Settings=Yes + Server webroot path=/var/www/html

/usr/share/astguiclient/ADMIN_area_code_populate.pl
/usr/share/astguiclient/ADMIN_update_server_ip.pl --old-server_ip=10.10.10.15

nano /etc/rc.local

### paste this below: 

#!/bin/sh
#
# This script will be executed *after* all the other init scripts.
# You can put your own initialization stuff in here if you don't
# want to do the full Sys V style init stuff.

touch /var/lock/subsys/local

# OPTIONAL enable ip_relay(for same-machine trunking and blind monitoring)
/usr/share/astguiclient/ip_relay/relay_control start 2>/dev/null 1>&2

# Disable console blanking and powersaving
/usr/bin/setterm -blank
/usr/bin/setterm -powersave off
/usr/bin/setterm -powerdown

### start up the MySQL server
systemctl restart mariadb.service

### start up the apache web server
systemctl restart apache2

### roll the Asterisk logs upon reboot
/usr/share/astguiclient/ADMIN_restart_roll_logs.pl

### clear the server-related records from the database
/usr/share/astguiclient/AST_reset_mysql_vars.pl

### load dahdi drivers
modprobe dahdi
/usr/sbin/dahdi_cfg -vvvvvvvvvvvvv

### sleep for 20 seconds before launching Asterisk
sleep 20

### start up asterisk
/usr/share/astguiclient/start_asterisk_boot.pl

type "crontab -e"

### paste below:

### recording mixing/compressing/ftping scripts
#0,3,6,9,12,15,18,21,24,27,30,33,36,39,42,45,48,51,54,57 * * * * /usr/share/astguiclient/AST_CRON_audio_1_move_mix.pl
0,3,6,9,12,15,18,21,24,27,30,33,36,39,42,45,48,51,54,57 * * * * /usr/share/astguiclient/AST_CRON_audio_1_move_mix.pl --MIX
0,3,6,9,12,15,18,21,24,27,30,33,36,39,42,45,48,51,54,57 * * * * /usr/share/astguiclient/AST_CRON_audio_1_move_VDonly.pl
1,4,7,10,13,16,19,22,25,28,31,34,37,40,43,46,49,52,55,58 * * * * /usr/share/astguiclient/AST_CRON_audio_2_compress.pl --GSM
#2,5,8,11,14,17,20,23,26,29,32,35,38,41,44,47,50,53,56,59 * * * * /usr/share/astguiclient/AST_CRON_audio_3_ftp.pl --GSM

### keepalive script for astguiclient processes
* * * * * /usr/share/astguiclient/ADMIN_keepalive_ALL.pl --cu3way

### kill Hangup script for Asterisk updaters
* * * * * /usr/share/astguiclient/AST_manager_kill_hung_congested.pl

### updater for voicemail
* * * * * /usr/share/astguiclient/AST_vm_update.pl

### updater for conference validator
* * * * * /usr/share/astguiclient/AST_conf_update.pl

### flush queue DB table every hour for entries older than 1 hour
11 * * * * /usr/share/astguiclient/AST_flush_DBqueue.pl -q

### fix the vicidial_agent_log once every hour and the full day run at night
33 * * * * /usr/share/astguiclient/AST_cleanup_agent_log.pl
50 0 * * * /usr/share/astguiclient/AST_cleanup_agent_log.pl --last-24hours
## uncomment below if using QueueMetrics
#*/5 * * * * /usr/share/astguiclient/AST_cleanup_agent_log.pl --only-qm-live-call-check

## uncomment below if using Vtiger
#1 1 * * * /usr/share/astguiclient/Vtiger_optimize_all_tables.pl --quiet

### updater for VICIDIAL hopper
* * * * * /usr/share/astguiclient/AST_VDhopper.pl -q

### adjust the GMT offset for the leads in the vicidial_list table
1 1,7 * * * /usr/share/astguiclient/ADMIN_adjust_GMTnow_on_leads.pl --debug

### reset several temporary-info tables in the database
2 1 * * * /usr/share/astguiclient/AST_reset_mysql_vars.pl

### optimize the database tables within the asterisk database
3 1 * * * /usr/share/astguiclient/AST_DB_optimize.pl

## adjust time on the server with ntp
30 * * * * /usr/sbin/ntpdate -u pool.ntp.org 2>/dev/null 1>&2

### VICIDIAL agent time log weekly and daily summary report generation
2 0 * * 0 /usr/share/astguiclient/AST_agent_week.pl
22 0 * * * /usr/share/astguiclient/AST_agent_day.pl

### VICIDIAL campaign export scripts (OPTIONAL)
#32 0 * * * /usr/share/astguiclient/AST_VDsales_export.pl
#42 0 * * * /usr/share/astguiclient/AST_sourceID_summary_export.pl

### remove old recordings more than 7 days old
#24 0 * * * /usr/bin/find /var/spool/asterisk/monitorDONE -maxdepth 2 -type f -mtime +7 -print | xargs rm -f

### roll logs monthly on high-volume dialing systems
#30 1 1 * * /usr/share/astguiclient/ADMIN_archive_log_tables.pl

### remove old vicidial logs and asterisk logs more than 2 days old
28 0 * * * /usr/bin/find /var/log/astguiclient -maxdepth 1 -type f -mtime +2 -print | xargs rm -f
29 0 * * * /usr/bin/find /var/log/asterisk -maxdepth 3 -type f -mtime +2 -print | xargs rm -f
30 0 * * * /usr/bin/find / -maxdepth 1 -name "screenlog.0*" -mtime +4 -print | xargs rm -f

### cleanup of the scheduled callback records
25 0 * * * /usr/share/astguiclient/AST_DB_dead_cb_purge.pl --purge-non-cb -q

### GMT adjust script - uncomment to enable
#45 0 * * * /usr/share/astguiclient/ADMIN_adjust_GMTnow_on_leads.pl --list-settings

### Dialer Inventory Report
1 7 * * * /usr/share/astguiclient/AST_dialer_inventory_snapshot.pl -q --override-24hours

### inbound email parser
* * * * * /usr/share/astguiclient/AST_inbound_email_parser.pl

nano /etc/httpd/conf.d/record.conf

Alias /RECORDINGS/ "/var/spool/asterisk/monitorDONE/"

<Directory "/var/spool/asterisk/monitorDONE">
    Options Indexes MultiViews
    AllowOverride None
    Order allow,deny
    Allow from all
    Require all granted 
        <files *.mp3>
            Forcetype application/forcedownload
        </files>
</Directory>

for synchronization problems:

yourserverip/vicidial/admin.php

go to Admin-> Servers-> update Asterisk Version: 13.29.2-vici

Video Version from HBTutorials