Raspberry Pi Forums

Posted: **Wed Jun 03, 2020 9:11 pm**

I have an application that writes to a log file. I create (via sudo touch) a blank log file (foobar.log) in /var/log/foobar.log. If I then create the following entry in /etc/fstab...

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tmpfs                                          /var/log           tmpfs   size=50M,nodev,nosuid        0       2

...reboot and then look in /var/log/ I cannot see foobar.log if I..

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cat /var/log

All the other log files are visible.

I cannot compute

(Raspberry pi4, Raspberry Pi OS Buster)

Cheers.

Posted: **Wed Jun 03, 2020 9:18 pm**

You're mounting a tmpfs over /var/log which means any existing files in /var/log such as foobar.log will be hidden and you can't access them. The other files still exists because rsyslog recreates them.

Posted: **Thu Jun 04, 2020 10:52 am**

I didn't realize rsyslog was doing that. Something new learned. Thanks for the pointer.

Raspberry Pi Forums

add log file to /var/log/

add log file to /var/log/

Re: add log file to /var/log/

Re: add log file to /var/log/