ls /var/.cagefs'' returned non-zero exit status 1

Issue

The cldiag reports:

Check cagefs users can enter cagefs:
FAILED: Command 'unset BASH_ENV; su 'user' -s /bin/bash -c 'echo -n "Logged in as: $(whoami) - $(id -u) "; [ "$(id -u)" == "1011" ] && ls /var/.cagefs'' returned non-zero exit status 1.; Output was: "su: cannot open session: Cannot make/remove an entry for the specified session"

Environment

• CloudLinux OS
• CageFS

Solution

1. Create missing /var/.cagefs folder and perform and update:

mkdir -p /var/.cagefs
cagefsctl --force-update && cagefsctl -M

Cause

Missing /var/.cagefs folder.