Clean deploy of NextcloudPi — Log spammed with errors: Unable to create temporary file, Check permissions in temporary files directory

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1

I’ve just deployed NCP and the only operation I’ve done from ncp-web is moving the datadir to my external USB mounted HDD. The external HDD is mounted regularly by fstab and not by NCP automount feature.

I noticed the the logs are filled with errors like:

Unable to create temporary file, Check permissions in temporary files directory. at /var/www/nextcloud/apps/files_external/3rdparty/icewind/streams/src/Wrapper.php#91

curl_exec(): Unable to create temporary file, Check permissions in temporary files directory. at /var/www/nextcloud/3rdparty/guzzlehttp/guzzle/src/Handler/CurlHandler.php#40

I don’t know if it is related but I can’t see any app available as NCP shows me the message " No apps found for your version".

Are the two things related? And anyway should I be worried by this error?

In the configuration I correctly see (ugreen is my mountpoint of the HDD):

tempdirectory /mnt/ugreen/ncp/tmp

Edit
The user permissions should be correct too as the folders are owned with write permission by drwxr-xr-x www-data.

Also the similar post is due to an update of the ncp instance and related to uploading files so I I’m not sure my issue is related.

2

Maybe you should check your php or php-fpm configuration, in particular the "sys_temp_dir " and "sys_temp_dir " variables…

3

I am having this same error with the 27.1.3 version of nextcloudpi. I put my data onto a usb drive. The sys_temp_dir setting in /etc/php/8.1/fpm/php.ini is on that drive

sys_temp_dir = /media/myCloudDrive/ncdata/data/tmp

4

I am a professional system administrator, and I am coming back just a few minutes later to relay that rebooting the system fixed this issue. Turning it off and on again saves the day again.