Lost config with distro and zm version upgrade

[cookiemonster]

The small thumbnails in the console have only a placeholder. The browser's dev tools show is due to http 404

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http://192.168.5.176/zm/cgi-bin/nph-zms?scale=33&mode=jpeg&maxfps=30&buffer=4&monitor=1&rand=1745531031&connkey=219686

But the link is valid, so I must still have a config to fix.

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penguin@venus:/$ ls -alh /usr/lib/zoneminder/cgi-bin/nph-zms
lrwxrwxrwx 1 root root 3 Oct 22  2024 /usr/lib/zoneminder/cgi-bin/nph-zms -> zms

zoneminder.conf (snip):

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    # Remember to enable cgi mod (i.e. "a2enmod cgi").
    ScriptAlias /cgi-bin "/usr/lib/zoneminder/cgi-bin"
    <Directory "/usr/lib/zoneminder/cgi-bin">
        Options +ExecCGI -MultiViews +SymLinksIfOwnerMatch
        AllowOverride All
        <IfModule mod_authz_core.c>
           # Apache 2.4
           Require all granted
        </IfModule>
        <IfModule !mod_authz_core.c>
            # Apache 2.2
            Order deny,allow
            Allow from all
        </IfModule>
    </Directory>

From https://zoneminder.readthedocs.io/en/la ... window-etc
my /etc/zm/conf.d/01-system-paths.conf has:

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# ZoneMinder url path to the zms streaming server
ZM_PATH_ZMS=/zm/cgi-bin/nph-zms

I have then edited the zoneminder.conf to

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ZM_PATH_ZMS=/usr/lib/zoneminder/cgi-bin/nph-zms

, restarted apache but still the same 404.
Any ideas what to try now please?

[cookiemonster]

My last remaining problem is the "No live view, no thumbnails" . How many times we've seen this and still baffles me
Just like viewtopic.php?t=33907 and tried the suggestion to create a soft link

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ln -s /var/cache/zoneminder/ /var/cache/zoneminder/cache

but still the same, didn't solve it.
I've been reading Apache man pages to understand the settings that I think the 404 is because I think the path to cgi is fine but to the cache perhaps isn't.
Please help me spot the flaw.

/etc/zm/conf.d/01-system-paths.conf

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# Full path to the folder events are recorded to.
# The web account user must have full read/write permission to this folder.
ZM_DIR_EVENTS=/var/cache/zoneminder/events

# ZoneMinder url path to the zms streaming server
#ZM_PATH_ZMS=/zm/cgi-bin/nph-zms
ZM_PATH_ZMS=/usr/lib/zoneminder/cgi-bin/nph-zms

/etc/apache2/sites-available/zoneminder.conf

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    DocumentRoot "/usr/share/zoneminder/www"

    # Order matters. This alias must come first.
    Alias /zm/cache "/var/cache/zoneminder/cache"
    <Directory "/var/cache/zoneminder/cache">
        Options -Indexes +FollowSymLinks
        AllowOverride None
        <IfModule mod_authz_core.c>
           # Apache 2.4
           Require all granted
        </IfModule>
        <IfModule !mod_authz_core.c>
            # Apache 2.2
            Order deny,allow
            Allow from all
        </IfModule>
    </Directory>

I have also before creating the link, in apache's zoneminder.conf I tried instead with:

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    DocumentRoot "/usr/share/zoneminder/www"

    # Order matters. This alias must come first.
    Alias /zm/cache "/var/cache/zoneminder"
    <Directory "/var/cache/zoneminder">
        Options -Indexes +FollowSymLinks
        AllowOverride None
        <IfModule mod_authz_core.c>
           # Apache 2.4
           Require all granted
        </IfModule>
        <IfModule !mod_authz_core.c>
            # Apache 2.2
            Order deny,allow
            Allow from all
        </IfModule>
    </Directory>

because in my installation the directory /var/cache/zoneminder/ is where events subdir is ie /var/cache/zoneminder/events , see:

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penguin@venus:~$ tree -d /var/cache/zoneminder
/var/cache/zoneminder
├── cache
│   └── zoneminder -> /var/cache/zoneminder/
├── events
│   ├── 1
│   ├── 2
│   ├── Back -> 2
│   └── Front -> 1
├── images
└── temp

[adam.robertson]

In my config I have:

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   Alias /cache/zoneminder "@ZM_CACHEDIR@"
    <Directory "/var/cache/zoneminder/cache">
        Options -Indexes +FollowSymLinks
        AllowOverride All
        <IfModule mod_authz_core.c>
           Require all granted
        </IfModule>
    </Directory>

I think the "@ZM_CACHEDIR@" is a variable for the cache directory, but it also works for me if I change it to /var/cache/zoneminder like you have in your config. However, you might give it a try to see if it makes any difference.

Also, I suspect you already know this since you have been dinkering around with linux, but after each change try:

sudo service apache2 restart
sudo service zoneminder restart

..then on your browser you are using clear the cache by holding down the shift button while refreshing the page.


You can also View Source of the page and find one of the links for css or js that has /cache in the link and then click on that to see if it opens for you...if it does, then your cache path is most likely working

[iconnor]

@ZM_CACHEDIR@ is a build-time replacement. Apache will do nothing with it.

It should be for debian based distros:
Alias /zm/cache "/var/cache/zoneminder/cache"
<Directory "/var/cache/zoneminder/cache">
Options -Indexes +FollowSymLinks
AllowOverride All
<IfModule mod_authz_core.c>
Require all granted
</IfModule>
</Directory>

[iconnor]

ZM_PATH_ZMS is confusing, as it is ACTUALLY the path part of a URL. It should be /zm/cgi-bin/nph-zms

The ScriptAlias links that to the real path. It should be:
ScriptAlias /zm/cgi-bin /usr/lib/zoneminder/cgi-bin/

[cookiemonster]

In my config I have:

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   Alias /cache/zoneminder "@ZM_CACHEDIR@"
    <Directory "/var/cache/zoneminder/cache">
        Options -Indexes +FollowSymLinks
        AllowOverride All
        <IfModule mod_authz_core.c>
           Require all granted
        </IfModule>
    </Directory>

I think the "@ZM_CACHEDIR@" is a variable for the cache directory, but it also works for me if I change it to /var/cache/zoneminder like you have in your config. However, you might give it a try to see if it makes any difference.

Also, I suspect you already know this since you have been dinkering around with linux, but after each change try:

sudo service apache2 restart
sudo service zoneminder restart

..then on your browser you are using clear the cache by holding down the shift button while refreshing the page.


You can also View Source of the page and find one of the links for css or js that has /cache in the link and then click on that to see if it opens for you...if it does, then your cache path is most likely working

Thanking you whilst reading Isaac's posts reg the @ZM_CACHEDIR@ variable. Thanks though and yes of course restarting services & fresh browser .

[cookiemonster]

@ZM_CACHEDIR@ is a build-time replacement. Apache will do nothing with it.

It should be for debian based distros:
Alias /zm/cache "/var/cache/zoneminder/cache"
<Directory "/var/cache/zoneminder/cache">
Options -Indexes +FollowSymLinks
AllowOverride All
<IfModule mod_authz_core.c>
Require all granted
</IfModule>
</Directory>

Ok this part matches.

[cookiemonster]

ZM_PATH_ZMS is confusing, as it is ACTUALLY the path part of a URL. It should be /zm/cgi-bin/nph-zms

The ScriptAlias links that to the real path. It should be:
ScriptAlias /zm/cgi-bin /usr/lib/zoneminder/cgi-bin/

Aha. This part does not match. I have on each:

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# ZoneMinder url path to the zms streaming server
ZM_PATH_ZMS=/zm/cgi-bin/nph-zms
#ZM_PATH_ZMS=/usr/lib/zoneminder/cgi-bin/nph-zms  <--a change in my debugging that I reversed, now back to the original above

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    # Remember to enable cgi mod (i.e. "a2enmod cgi").
    ScriptAlias /cgi-bin "/usr/lib/zoneminder/cgi-bin"
    <Directory "/usr/lib/zoneminder/cgi-bin">
        Options +ExecCGI -MultiViews +SymLinksIfOwnerMatch
        AllowOverride All
        <IfModule mod_authz_core.c>
           # Apache 2.4
           Require all granted
        </IfModule>
        <IfModule !mod_authz_core.c>
            # Apache 2.2
            Order deny,allow
            Allow from all
        </IfModule>
    </Directory>

Now changing the ScriptAlias in a sec.

[cookiemonster]

Nein. Still being a pain, sorry.
I now have:
/etc/zm/conf.d/01-system-paths.conf

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# ZoneMinder url path to the zms streaming server
ZM_PATH_ZMS=/zm/cgi-bin/nph-zms
#ZM_PATH_ZMS=/usr/lib/zoneminder/cgi-bin/nph-zms

and /etc/apache2/sites-available/zoneminder.conf

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    # Remember to enable cgi mod (i.e. "a2enmod cgi").
#    ScriptAlias /cgi-bin "/usr/lib/zoneminder/cgi-bin"
    ScriptAlias /zm/cgi-bin "/usr/lib/zoneminder/cgi-bin"
    <Directory "/usr/lib/zoneminder/cgi-bin">
        Options +ExecCGI -MultiViews +SymLinksIfOwnerMatch
        AllowOverride All
        <IfModule mod_authz_core.c>
           # Apache 2.4
           Require all granted
        </IfModule>
        <IfModule !mod_authz_core.c>
            # Apache 2.2
            Order deny,allow
            Allow from all
        </IfModule>
    </Directory>

Of course restart apache and zoneminder after each change.
Please note that I tried with and without the trailing slash in the ALIAS:
ScriptAlias /zm/cgi-bin /usr/lib/zoneminder/cgi-bin/
anb
ScriptAlias /zm/cgi-bin/ /usr/lib/zoneminder/cgi-bin/

Could I be looking in the wrong place at things? Thanks for the assistance so far though.

[cookiemonster]

@ZM_CACHEDIR@ is a build-time replacement. Apache will do nothing with it.

It should be for debian based distros:
Alias /zm/cache "/var/cache/zoneminder/cache"
<Directory "/var/cache/zoneminder/cache">
Options -Indexes +FollowSymLinks
AllowOverride All
<IfModule mod_authz_core.c>
Require all granted
</IfModule>
</Directory>

Spotted after staring at blocks of settings long enough that I had (please note these differences are not me fiddling):

# Order matters. This alias must come first.
Alias /zm/cache "/var/cache/zoneminder/cache"
<Directory "/var/cache/zoneminder/cache">
Options -Indexes +FollowSymLinks
AllowOverride None
<IfModule mod_authz_core.c>
# Apache 2.4
Require all granted
</IfModule>
<IfModule !mod_authz_core.c>
# Apache 2.2
Order deny,allow
Allow from all
</IfModule>
</Directory>

Changed that but still no go.
I am going maaaad.

@iconnor - could it be the this part instead of the script alias?. Would you mind having a look too?

[adam.robertson]

In my notes for setting up ZM I have this:

finally, run:

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sudo zmupdate.pl -f

and (changing username and password to match my setup)

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sudo zmupdate.pl --user=MYSQLUSER --pass="MYSQLPASSWORD"

[cookiemonster]

Thanks @adam.robertson I appreciate the hint.
Just a glance at the perl script and is for updating the database from what I can gather. It wouldn't do anything:

mysql> select * from Config where Name = 'ZM_DYN_DB_VERSION';

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+-----+-------------------+---------+--------+--------------+--------+-------------+--------+----------------------------------------------------+------+----------+----------+---------+--------+----------+
| Id  | Name              | Value   | Type   | DefaultValue | Hint   | Pattern     | Format | Prompt                                             | Help | Category | Readonly | Private | System | Requires |
+-----+-------------------+---------+--------+--------------+--------+-------------+--------+----------------------------------------------------+------+----------+----------+---------+--------+----------+
| 216 | ZM_DYN_DB_VERSION | 1.36.35 | string | 1.36.35      | string | (?^:^(.+)$) |  $1    | What the version of the database is, from zmupdate |      | dynamic  |        1 |       0 |      0 | NULL     |
+-----+-------------------+---------+--------+--------------+--------+-------------+--------+----------------------------------------------------+------+----------+----------+---------+--------+----------+
1 row in set (0.00 sec)

and https://update.zoneminder.com/version.txt is 1.36.35 .
I'm comparing what the update script would do. Compare the value in the url with the version of the db and as we can see, it's up to date.
So I rather not run it. But I appreciate it.

Any more hints anyone please?

[cookiemonster]

Thinking even more about it. Reinstallation of ZM but my storage for events is on an a separate disk. Could it be that which needs adjusting the configs? Maybe I'm just thinking aloud and posting in the hope I can cast my eyes on it and spot my idiocy.
I still have (reinstallation didn't purge it) in /etc/zm/conf.d/ a file 03-storage.conf that contains the entry:

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ZM_DIR_EVENTS=/mnt/Surveillance/zoneminder/events

Currently there is no data in there in the disk. This events directory is empty. The parent is where they're going.
However in the disk they are in /mnt/Surveillance/zoneminder/

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/mnt/Surveillance/zoneminder/
├── 1
│   ├── 23
│   │   ├── 06
│   │   │   ├── 16
│   │   │   │   └── 16
│   │   │   │       └── 38
│   │   │   │           └── 27
│   │   │   │               ├── 00001-capture.jpg
│   │   │   │               ├── 00002-capture.jpg

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penguin@venus:~$ ls -alh /mnt/Surveillance/zoneminder/1/
total 20K
drwxr-xr-x 5 www-data www-data 4.0K Mar  2 00:00 .
drwxr-xr-x 5 www-data www-data 4.0K May 28  2023 ..
drwxr-xr-x 6 www-data www-data 4.0K Apr 23 11:16 23
drwxr-xr-x 8 www-data www-data 4.0K Jan  1 01:27 24
drwxr-xr-x 3 www-data www-data 4.0K Apr  1 01:15 25

So it seems zm is writing currently to /mnt/Surveillance/zoneminder/ so I need to figure out how to get the webUI to see the events in that location.
So I have two thoughts:
1- why if there is an .conf in zm conf.d/ pointing to /path/to/events they are written to /path/to/
2- do I need to update apache to look there, is it

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Alias /zm/cache "/var/cache/zoneminder/cache"

that needs updating?

[adam.robertson]

I am guessing you have been doing this already, but just in case:

Are your permissions all correct? Have you given www-data permissions on your storage and such?

I suggested this to one guy, but he insisted this broke his database, which is a funny thing to say.
Here is from my notes (which I kept copiously as I installed ZM for the first time)

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##6  SET PERMISSIONS FOR VARIOUS THINGS:

(zm runs under www-data)

sudo chown -R www-data:www-data /etc/zm/zm.conf

sudo chown -R www-data:www-data /etc/zm/conf.d/db-user.conf

sudo chown -R www-data:www-data /usr/share/zoneminder/www

sudo chown -R www-data:www-data /usr/lib/zoneminder

sudo chmod -R 0774   /usr/share/zoneminder/www

###and my storage drive#####
sudo chown -R www-data:www-data /mnt/zm