Problem upgrading from 3.2.1 to 3.4.x Debian 9

[dwm]

Hello,
I'm having a problem upgrading Zabbix server from 3.2.1 version to 3.4.1 on our Debian 9 Stretch i686 (which was upgraded from debian 8).

I downloaded a deb package from here: http://repo.zabbix.com/zabbix/3.4/de...tretch_all.deb

Then dpkg -i, and apt-get update / upgrade. I saw that it's installing the new version because there was few events in console like:

Preparing to unpack .../2-zabbix-server-mysql_1%3a3.4.3-2+stretch_i386.deb ...
Unpacking zabbix-server-mysql (1:3.4.3-2+stretch) over (1:3.2.8-1+jessie) ...
Setting up zabbix-server-mysql (1:3.4.3-2+stretch) ...

But the problem is, that when I log in to the webpanel I still get the 3.2.1 version, also on /var/tmp/zabbix_server.log there is:
1146:20171102:130946.824 Starting Zabbix Server. Zabbix 3.2.1 (revision 62890).

I have no clue why it doesn't upgraded properly. I've always downloaded a new deb package, then install it / sudo apt-get update/upgrade and it was working flawlessly.

[kaspars.mednis]

Tried to replicate your problem on fresh debian 9.2

root@debian:~# wget http://repo.zabbix.com/zabbix/3.4/debian/pool/main/z/zabbix-release/zabbix-release_3.4-1+stretch_all.deb
zabbix-release_3.4-1+stretch 100%[=============================================>]   3.79K  --.-KB/s    in 0s

root@debian:~# dpkg -i zabbix-release_3.4-1+stretch_all.deb
Get:1 http://repo.zabbix.com/zabbix/3.4/debian stretch/main i386 zabbix-server-mysql i386 1:3.4.3-2+stretch [2005 kB]
Get:2 http://repo.zabbix.com/zabbix/3.4/debian stretch/main i386 zabbix-agent i386 1:3.4.3-2+stretch [375 kB]
Get:3 http://repo.zabbix.com/zabbix/3.4/debian stretch/main i386 zabbix-frontend-php all 1:3.4.3-2+stretch [2199 kB]

Preparing to unpack .../zabbix-server-mysql_1%3a3.4.3-2+stretch_i386.deb ...
Unpacking zabbix-server-mysql (1:3.4.3-2+stretch) over (1:3.2.9-2+stretch) ...
Preparing to unpack .../zabbix-agent_1%3a3.4.3-2+stretch_i386.deb ...
Unpacking zabbix-agent (1:3.4.3-2+stretch) over (1:3.2.9-2+stretch) ...
Preparing to unpack .../zabbix-frontend-php_1%3a3.4.3-2+stretch_all.deb ...
Unpacking zabbix-frontend-php (1:3.4.3-2+stretch) over (1:3.2.9-2+stretch) ...
Setting up zabbix-server-mysql (1:3.4.3-2+stretch) ...
Setting up zabbix-agent (1:3.4.3-2+stretch) ...
Setting up zabbix-frontend-php (1:3.4.3-2+stretch) ...

after that

root@debian:/etc/zabbix# zabbix_server -V
zabbix_server (Zabbix) 3.4.3

Everything worked as expected.
I can't see a zabbix_frontend /agent upgrade in your log, maybe something went wrong with this ?
Is the zabbix frontend on the same server ?

Regards,
Kaspars

[dwm]

Yes, frontend is at the same server.

[dwm]

So I`ve tried it again today.

root#dpkg -i zabbix-release_3.4-1+stretch_all.deb
(Reading database ... 81513 files and directories currently installed.)
Preparing to unpack zabbix-release_3.4-1+stretch_all.deb ...
Unpacking zabbix-release (3.4-1+stretch) over (3.2-1+jessie) ...
Setting up zabbix-release (3.4-1+stretch) ...
Installing new version of config file /etc/apt/sources.list.d/zabbix.list ...

# apt-get install zabbix-server-mysql zabbix-frontend-php
Reading package lists... Done
Building dependency tree
Reading state information... Done
The following additional packages will be installed:
  php-bcmath php7.0-bcmath
The following NEW packages will be installed:
  php-bcmath php7.0-bcmath
The following packages will be upgraded:
  zabbix-frontend-php zabbix-server-mysql
2 upgraded, 2 newly installed, 0 to remove and 19 not upgraded.
Need to get 3,403 kB of archives.
After this operation, 4,466 kB disk space will be freed.
Do you want to continue? [Y/n] Y
Get:1 http://ftp.us.debian.org/debian stretch/main i386 php7.0-bcmath i386 7.0.19-1 [16.7 kB]
Get:2 http://repo.zabbix.com/zabbix/3.4/debian stretch/main i386 zabbix-server-mysql i386 1:3.4.4-1+stretch [2,007 kB]
Get:3 http://ftp.us.debian.org/debian stretch/main i386 php-bcmath all 1:7.0+49 [5,050 B]
Get:4 http://repo.zabbix.com/zabbix/3.4/debian stretch/main i386 zabbix-frontend-php all 1:3.4.4-1+stretch [1,374 kB]
Fetched 3,403 kB in 3s (1,053 kB/s)
Reading changelogs... Done
(Reading database ... 81513 files and directories currently installed.)
Preparing to unpack .../zabbix-server-mysql_1%3a3.4.4-1+stretch_i386.deb ...
Unpacking zabbix-server-mysql (1:3.4.4-1+stretch) over (1:3.2.8-1+jessie) ...
Selecting previously unselected package php7.0-bcmath.
Preparing to unpack .../php7.0-bcmath_7.0.19-1_i386.deb ...
Unpacking php7.0-bcmath (7.0.19-1) ...
Selecting previously unselected package php-bcmath.
Preparing to unpack .../php-bcmath_1%3a7.0+49_all.deb ...
Unpacking php-bcmath (1:7.0+49) ...
Preparing to unpack .../zabbix-frontend-php_1%3a3.4.4-1+stretch_all.deb ...
Unpacking zabbix-frontend-php (1:3.4.4-1+stretch) over (1:3.2.8-1+jessie) ...
Setting up zabbix-server-mysql (1:3.4.4-1+stretch) ...
insserv: warning: script 'zabbix-server' missing LSB tags and overrides
Processing triggers for systemd (232-25+deb9u1) ...
Setting up php7.0-bcmath (7.0.19-1) ...

Creating config file /etc/php/7.0/mods-available/bcmath.ini with new version
Processing triggers for man-db (2.7.6.1-2) ...
Setting up php-bcmath (1:7.0+49) ...
Setting up zabbix-frontend-php (1:3.4.4-1+stretch) ...

But even after reboot it's still on 3.2.1

root# zabbix_server -V
zabbix_server (Zabbix) 3.2.1
Revision 62890 30 September 2016, compilation time: Oct 25 2016 09:11:47

//EDIT: I've done few more tests and research.
So... dunno why I have 2 versions installed on debian.

root:/etc/init.d# /usr/sbin/zabbix_server -V
zabbix_server (Zabbix) 3.2.9

root:/etc/init.d# /usr/local/sbin/zabbix_server -V
zabbix_server (Zabbix) 3.2.1

I've edited /etc/rc.d/zabbix_server, and changed path to /usr/sbin/zabbix_server
And now I see in the log (/var/log/zabbix/zabbix_server.log), that 3.2.9 version is starting... BUT on the webpanel there is still 3.2.1 version.

EDIT2:
I've changed startup path for zabbix to the new version located in: /usr/sbin/, the same was with the webpanel. Older version of webpanel was located in /var/www/, the new one is in /usr/share/zabbix.
Now everything is working as it should.