Create an new installation with V11.2.2 on a shared webhoster

[gkobler (Gregor Kobler)]

Hello

I try to made a new installation with Version 11.2.2 on a shared webhoster with PHP8.1.
Everything are ok, but i got an error when i click to the “Admin” button. I got the follow error message

Fatal error: Uncaught Error: Call to undefined function passthru() in /home/xxxx/web/xxxx/public_html/Modules/admin/admin_model.php:485 Stack trace: #0 /home/xxxx/web/xxxx/public_html/Modules/admin/admin_model.php(310): Admin->disk_list() #1 /home/xxxx/web/xxxx/public_html/Modules/admin/admin_model.php(97): Admin->system_information() #2 /home/xxxx/web/xxxx/public_html/Modules/admin/admin_controller.php(77): Admin->full_system_information() #3 /home/xxxx/web/xxxx/public_html/core.php(75): admin_controller() #4 /home/xxxx/web/xxxx/public_html/index.php(242): controller(‘admin’) #5 {main} thrown in /home/xxxx/web/xxxx/public_html/Modules/admin/admin_model.php on line 485

Does somebody has an idea what the cause of this error could be?

Thankfull for any hint
Gregor

[mjr]

Does your shared webhost disable passthru? Do this but search for passthru instead of exec:

How to check if the exec() function is enabled in my PHP install | DigitalOcean

[gkobler (Gregor Kobler)]

Yes it’s disabled

I’m not sure, the webhoster are willing to enable it.

[mjr]

Webhoster error. Replace webhoster and try again.

[Zarch (Mick Wall)]

Ubuntu 22 uses PHP 8.1.2
EmonCMS needs v7.4.3

I’d suggest installing ubuntu 20, not 22.

Error after new installation - Proxmox

I upgraded a Ubuntu 20 LTS VM to 22 LTS and it seems to remove old php versions (7.4.3 in my case) and plonk 8.1.2 on there. So I would imagine any brand new 22 LTS would be 8.1.x out of the box. This obviously broke emoncms, so I reverted and left it as is for now.

[gkobler (Gregor Kobler)]

@mjr

Replace webhoster and try again

Not that easy

[gkobler (Gregor Kobler)]

@Zarch

I’d suggest installing ubuntu 20, not 22

This is on a shared webhoster not possible. I can change the PHP version to 7.4 and try it again

[mjr]

That’s a different problem, best handled by redirecting the warnings, and downgrading isn’t a long term solution anyway.

[gkobler (Gregor Kobler)]

@mjr

Does your shared webhost disable passthru? Do this but search for passthru instead of exec:

My webhoster has enabled passthru
now i can access to the admin sections.

follow error messages appears, but im not sure it’s relevant to me? Or can i ignore them?

Warning: file_exists(): open_basedir restriction in effect. File(/dev/ttyUSB0) is not within the allowed path(s): (/home/xxxx/web/files:/home/xxxx/web/xxxx/public_html:/home/xxxx/web/xxxx/software_data:/home/xxxx/tmp:/home/xxxx/web/xxxx/stats) in /home/xxxx/web/xxxx/public_html/Modules/admin/admin_model.php on line 60

And also an error in the system info
Warning: Undefined array key “total” in /home/xxxx/web/xxxx/public_html/Modules/admin/Views/admin_main_view.php on line 133
Warning: Undefined array key “free” in /home/xxxx/web/xxxx/public_html/Modules/admin/Views/admin_main_view.php on line 135

[mjr]

Those are warnings not errors. The first is complaining it cannot access a USB serial device, which a server wouldn’t have anyway. The others are probably php starting to tighten up on questionable shortcuts in programming.

I think you could switch warnings off in your php.ini without serious problem, or just ignore them until a future emoncms version fixes them.

[gkobler (Gregor Kobler)]

that’s what I thought, just wanted to be sure. Thanks