Unable to Install Imunify360 on Debian 10 on Plesk

Issue

Imunify360 deploy script is not able to install due to a dependency error.

Logs could be:

[2021-12-30 12:35:59] Some packages could not be installed. This may mean that you have
[2021-12-30 12:35:59] requested an impossible situation or if you are using the unstable
[2021-12-30 12:35:59] distribution that some required packages have not yet been created
[2021-12-30 12:35:59] or been moved out of Incoming.
[2021-12-30 12:35:59] The following information may help to resolve the situation:
[2021-12-30 12:35:59] 
[2021-12-30 12:35:59] The following packages have unmet dependencies:
[2021-12-30 12:35:59] imunify360-firewall : Depends: ai-bolit (>= 1:31.3.4-1) but it is not going to be installed
[2021-12-30 12:35:59] E: Unable to correct problems, you have held broken packages.
[2021-12-30 12:35:59] Package imunify360-firewall was not installed.

 The following packages have unmet dependencies:
[2021-12-30 12:22:42] imunify360-firewall : Depends: alt-python38 (>= 3.8.6-9) but it is not going to be installed
[2021-12-30 12:22:42] Depends: alt-python38-yaml (>= 3.11) but it is not going to be installed
[2021-12-30 12:22:42] Depends: alt-python38-aiodns (>= 2.0.0) but it is not going to be installed
[2021-12-30 12:22:42] Depends: alt-python38-aiohttp (>= 3.0.8) but it is not going to be installed
[2021-12-30 12:22:42] Depends: alt-python38-async-lru (>= 1.0.2) but it is not going to be installed
[2021-12-30 12:22:42] Depends: alt-python38-blinker (>= 1.4) but it is not going to be installed
[2021-12-30 12:22:42] Depends: alt-python38-cerberus (>= 1.1) but it is not going to be installed
[2021-12-30 12:22:42] Depends: alt-python38-daemon (>= 2.2.4) but it is not going to be installed
[2021-12-30 12:22:42] Depends: alt-python38-geoip2 (>= 2.4.2) but it is not going to be installed
[2021-12-30 12:22:42] Depends: alt-python38-humanize (>= 0.5.1) but it is not going to be installed
[2021-12-30 12:22:42] Depends: alt-python38-peewee (>= 2.8.4) but it is not going to be installed
[2021-12-30 12:22:42] Depends: alt-python38-peewee-migrate (>= 0.6.4) but it is not going to be installed
[2021-12-30 12:22:42] Depends: alt-python38-protobuf (>= 3.5.1) but it is not going to be installed
[2021-12-30 12:22:42] Depends: alt-python38-psutil (>= 5.4.7) but it is not going to be installed
[2021-12-30 12:22:42] Depends: alt-python38-pytricia (>= 0.9.4) but it is not going to be installed
[2021-12-30 12:22:42] Depends: alt-python38-sentry-sdk (>= 0.7.10-1) but it is not going to be installed
[2021-12-30 12:22:42] Depends: alt-python38-jsonschema (>= 3.0.1) but it is not going to be installed
[2021-12-30 12:22:42] Depends: alt-python38-pyjwt (>= 1.6.4) but it is not going to be installed
[2021-12-30 12:22:42] Depends: alt-python38-pam (>= 1.8.4) but it is not going to be installed
[2021-12-30 12:22:42] Depends: alt-python38-sdnotify (>= 0.3.2) but it is not going to be installed
[2021-12-30 12:22:42] Depends: alt-python38-urllib3 (>= 1.15.1-4) but it is not going to be installed
[2021-12-30 12:22:42] Depends: cloudlinux-backup-utils (>= 3.8.3-2) but it is not going to be installed
[2021-12-30 12:22:42] Depends: imunify360-ossec-server (>= 3.1.0-98) but it is not going to be installed
[2021-12-30 12:22:42] Depends: imunify360-pam (>= 5.8.0-14) but it is not going to be installed
[2021-12-30 12:22:42] Depends: ai-bolit (>= 1:31.3.4-1) but it is not going to be installed
[2021-12-30 12:22:42] Depends: app-version-detector (>= 1:21.0908-1) but it is not going to be installed
[2021-12-30 12:22:42] Depends: imunify360-webshield-bundle (>= 1.19-3) but it is not going to be installed
[2021-12-30 12:22:42] Depends: imunify360-php-i360 (>= 6.1.0-1.7) but it is not going to be installed
[2021-12-30 12:22:42] Depends: imunify360-modsec-sdbm-util (>= 1.0-11) but it is not going to be installed 

Environment

• Debian 10
• Plesk
  
• Imunify360

Solution

1. Downgrade libc6:

apt install libc6=2.31-13+deb11u2

apt install --fix-broken

2. Then, rerun the deploy script:

# wget https://repo.imunify360.cloudlinux.com/defence360/i360deploy.sh -O i360deploy.sh

# bash i360deploy.sh --key YOUR_KEY