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**vso** · 02-11-2020, 13:51

Could you please be so kind and set DebugLevel to 5, start Zabbix server again and then attach log.

**markfree** · 02-11-2020, 15:10

I believe your issue might be similar to mine.
Previous post

**markfree** · 02-11-2020, 15:12

obasigeorge, are you using Raspberry OS with 64 bit architecture (aarch64)?

**vso** · 02-11-2020, 15:46

Created ticket in bug tracker:

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https://support.zabbix.com/browse/ZBX-18599

**Janet Kew** · 14-12-2021, 16:29

@obasigeorge can you explain how you reverted to 5.0.5?
I rebooted server that is hosting zabbix-server 5.0.7 and during reboot zabbix server got upgraded to version 5.2 Zabbix fronted was complaining that current version of mysql was 5020000 while it needs to be 50000 so I went to mysql and updated rows to match 50000. now fronted loads but I can't log in with any of the existing users. I didn't make any backup as I was just planning to reboot the server for kernel upgrade.

**obasigeorge** · 14-12-2021, 16:35

To revert the database version number to the previous number expected by the application I edited the following table:
dbversion

update dbversion set mandatory=‘05000000’ where mandatory=‘5010043’;

**Janet Kew** · 14-12-2021, 18:15

I've updated db version table as you explained. But error is still present. I've checked versions of installed zabbix packages.

Code:

[HTML]apt list --installed | grep zabbix

zabbix-agent/unknown,now 1:5.2.7-1+ubuntu18.04 amd64 [installed]
zabbix-frontend-php-deprecated/now 1:5.0.7-1+xenial all [installed,local]
zabbix-get/unknown,now 1:5.2.7-1+ubuntu18.04 amd64 [installed]
zabbix-release/unknown,unknown,now 1:5.2-1+ubuntu18.04 all [installed]
zabbix-sender/unknown,now 1:5.2.7-1+ubuntu18.04 amd64 [installed]
zabbix-server-mysql/unknown,now 1:5.2.7-1+ubuntu18.04 amd64 [installed][/HTML]

Fronted-php is not getting updated nor installed:

Code:

dpkg -i zabbix-frontend-php_5.2.7-1+ubuntu18.04_all.deb
(Reading database ... 157553 files and directories currently installed.)
Preparing to unpack zabbix-frontend-php_5.2.7-1+ubuntu18.04_all.deb ...
Unpacking zabbix-frontend-php (1:5.2.7-1+ubuntu18.04) ...
dpkg: error processing archive zabbix-frontend-php_5.2.7-1+ubuntu18.04_all.deb (--install):
trying to overwrite '/usr/share/zabbix/actionconf.php', which is also in package zabbix-frontend-php-deprecated 1:5.0.7-1+xenial
dpkg-deb: error: paste subprocess was killed by signal (Broken pipe)
Errors were encountered while processing:
zabbix-frontend-php_5.2.7-1+ubuntu18.04_all.deb

**obasigeorge** · 14-12-2021, 18:30

Sorry. I didn’t realise you haven’t rolled back the application as yet. Please follow these steps:

1. edit the apt manifest to point to version 5
sudo -s
vi /etc/apt/source.list.d/zabbix.repo

change 5.2 to 5.0

2. apt remove zabbix-*

3. apt install zabbix-server-? zabbix-frontend-php zabbix-nginx-conf zabbix-agent

4. Start the services
systemctl start zabbix-server
systemctl start zabbix-agent

5. make sure the services start on reboot
systemctl enable ?

6. check for errors in the log
tail -f /var/log/zabbix/zabbix_server.log

**Janet Kew** · 15-12-2021, 15:57

thank you for the explanation, I removed php-frontend 5.0 and installed it for 5.2 and my login is working now. I've updated zabbix_agent version on host machines and everything is working as before.
thank you so much for provided info

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