Hello,
Can someone help me or send me a guide how to upgrade PHP from 7.4.3 to 8.1 which is already the minimum supported version?
I am running LibreNMS on Ubuntu 20.04.3 LTS.
Upgrade to 22.04 and you get it out of box
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tried to upgrade to 22.04 but librenms is not working any more.
lot of PHP errors, nginx,…
inplace upgrade is not an option…
I just ran do-release-upgrade on one of my 20.04 servers. Some things were missing after, so I ran the apt install line from the install docs:
apt install acl curl fping git graphviz imagemagick mariadb-client mariadb-server mtr-tiny nginx-full nmap php-cli php-curl php-fpm php-gd php-gmp php-json php-mbstring php-mysql php-snmp php-xml php-zip rrdtool snmp snmpd whois unzip python3-pymysql python3-dotenv python3-redis python3-setuptools python3-systemd python3-pip
I also had to configure the php-fpm pool from the docs, since it already exists, I just copied it:
cp /etc/php/7.4/fpm/pool.d/librenms.conf /etc/php/8.1/fpm/pool.d/librenms.conf
systemctl restart php8.1-fpm
Then run ./daily.sh to switch back to the main release from the support branch (or wait for it to run)
su - librenms
./daily.sh
Double check validate for other known issues. I had to fix php timezone too.
5 Likes
Thank you very much! Works 
all i had to do was setting the timezone here:
vi /etc/php/8.1/fpm/php.ini
vi /etc/php/8.1/cli/php.ini
Thank you all for your recommendations. I upgraded Ubuntu 20.04. to 22.04. and Libre works.
I upgraded to 22.04 and it still did not work. I ran command
systemctl | grep php
and could see both 7.4-fpm.sevice and 8.1 service running.
Copied the librenms.conf file from 7.4 to 8.1 and removed form 7.4 location. Reboot and all working on 8.1.
sudo cp /etc/php/7.4/fpm/pool.d/librenms.conf /etc/php/8.1/fpm/pool.d/librenms.conf
sudo rm /etc/php/7.4/fpm/pool.d/librenms.conf
I am a newbie at libre so probably not the best way but it worked for me
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