Yet another HTTP 500 error

Help
1

I recently upgraded from an ancient version of librenms, with an ancient php 5.something, to latest and php7.2. I believe I’ve upgraded all necessary packages (sql, anything that complained, etc).

Validate looks clean, and composer-wrapper runs, and even after installing acl and running those setfacl commands, everything is happy. The website just doesn’t work at all.

Forgive me for not cutting&pasting the validate.php output; it’s on another machine entirely. Reproduced here:
`LibreNMS 1.43-434-ga9723cb
DB Schema 268
PHP 7.2.10-1+ubuntu14.04.1+deb.sury.org+1
MySQL 5.7.18
RRDTool 1.4.7
SNMP NET-SNMP 5.7.2

Composer Version: 1.7.2
’

All dependencies up to date, database connection successful, database schema correct.

All I get in my librenms.log (besides a lot of poller.php logging) is a single “GET / HTTP 1.1” 500 206 line. I’ve even tried with /debug=yes, same thing.

Probably NOT related since it was happening before: whenever poller runs, I get mail (lots of mail) from cron with subject line “librenms /opt/librenms/cronic /opt/librenms/poller-wrapper.py 16” with a message body of “/bin/sh: 1: librenms: not found”

Any clues? I haven’t YET updated ubuntu to 15.04 (and hopefully onwards to 16.04), but if that might help, I’ll do that.

2

Further info:

I added a log_errors line to index.php, just so I could see what php is coughing up. Errors.log now shows:

[Wed Oct 10 17:15:50.213363 2018] [access_compat:error] [pid 23676] [client 10.18.40.50:34563] AH01797: client denied by server configuration: /opt/librenms/html/includes

[Wed Oct 10 17:15:58.293604 2018] [autoindex:error] [pid 23675] [client 10.18.40.50:34564] AH01276: Cannot serve directory /opt/librenms/html/images/: No matching DirectoryIndex (index.html,index.cgi,index.pl,index.php,index.xhtml,index.htm) found, and server-generated directory index forbidden by Options directive

3

…this error seems to have been fixed by removing quote marks around the path in the apache directory directive. Back to no errors being logged anywhere that I can find, just a simple HTTP 500.

4

SOLVED:

Since I was upgrading from php5 to php7.2 with apache2, I’d neglected to do “a2dismod php5” and “a2enmod php7.2”.

Once that was done, the webui came right up.

5

Much appreciated. For me it was a2dismod php7.0. Your answer got me unstuck. :raised_hands: