[arm-allstar] ARM-allstar Digest, Vol 106, Issue 13

[David McGough]

Hi Mark,

The reported Supermon filesystem usage is normal.  The reason why that
number jumped from 2%-4% to 56% is that in the original configuration, the
/var/log filesystem was an empty RAMdrive (tmpfs), so almost no usage.  
Now, after making the change in /etc/fstab and rebooting, the /var/log
*FOLDER* is part of the SD card root filesystem, which is 56% full.

Note that HamVoIP, by default, only uses 4GB of the available SD card 
space.  If you've got a 32GB card, about 26GB (or so) is still free and 
not part of any used filesystem--it's spare, unused space.  You can 
utilize this extra space, of course, if needed.


73, David K4FXC




On Thu, 16 Mar 2023, Mark VE3JMR via ARM-allstar wrote:

> 
> 
> Hi David;
> 
> That works great! I'm not that concerned about the log files getting too 
> big. 1. I have a script that is triggered by a daily cronjob that trims 
> all of the logs to the maximum size (number of lines) that I specify; 2. 
> Supermon2 shows the size of the logs and how much of the max size has 
> been used. IF it maxes out I know to adjust the trimlog cronjob.
> 
> Logs file size brings up an interesting observation. Before I modified 
> the two files for persistent logging, Supermon always reported that 2%, 
> and if I ran it for many days up to 4%, of the max file size was used. 
> After I modified the files and rebooted, Supermon now reports that 56% 
> of the log file max has been used. Really? I did not expect this. FYI, I 
> use a 32G microSD in my Shari hotspot.
> 
> Thanks again.
> 
> > Date: Wed, 15 Mar 2023 09:29:43 -0400 (EDT)
> > From: David McGough <kb4fxc at inttek.net>
> > To: Mark VE3JMR via ARM-allstar <arm-allstar at hamvoip.org>
> > 
> > Hi Mark,
> > 
> > Okay, persistent logging to the SD card is easy to setup, there are 2
> > steps.
> > 
> > First, edit the /etc/systemd/journald.conf file and change:
> > 
> > [Journal]
> > Storage=volatile
> > 
> > ...to...
> > 
> > [Journal]
> > #Storage=volatile
> > Storage=persistent
> > 
> > ...and save the file.
> > 
> > Second, edit the /etc/fstab file and comment out the entry for the
> > /var/log tmpfs, like:
> > 
> > #
> > # /etc/fstab: static file system information
> > #
> > # <file system> <dir>   <type>  <options>       <dump>  <pass>
> > /dev/mmcblk0p1  /boot   vfat    defaults        0       0
> > #tmpfs          /var/log        tmpfs   nodev,nosuid,size=50M   0       
> > 0
> > 
> > ....Save the /etc/fstab file and reboot.   That's it!  Now, the 
> > logfiles
> > will all be in /var/log and that folder will be persistent across 
> > reboots.
> > 
> > NOTE:  Now /var/log is part of the system "root" filesystem. If the
> > logfiles get too big, they could leave the root filesystem full, 
> > impairing
> > system operation until they get cleaned up!!!  So, be careful!
> > 
> > If you decide to go back to volatile log files, just reverse the 
> > changes,
> > above, and reboot.
> > 
> > 73, David K4FXC
> > 
> > ********************************************
> > 
> > Thanks so much.
> > 
> > 73 75 de VE3JMR | VE3MR
> > Mark
> > Port Colborne, Ontario, CANADA
> > https://www.qrz.com/db/VE3JMR
> > Allstar# 531320 [1] | Echolink# 736666 | VE3JMR-L [2]
> > 
> > [3]    [4]    [5]
> > Ottawa ARC [3]                                           Burlington ARC 
> > [4]                                       Radio Amateur of Canada [5]
> > 
> > LIFE has an expiry date.
> > <if trumpet=%true then exit function>
> 
> 
> Links:
> ------
> [1] http://stats.allstarlink.org/stats/531320
> [2] 
> https://www.echolink.org/links.jsp?lat_deg=42&lat_min=52.997999999999905&lat_NS=North&lon_deg=79&lon_min=13.99799999999999&lon_EW=West&gs=FN02jv&sel=city&city=Port+Colborne&state=ON&country=CA&d=1
> [3] https://oarc.net
> [4] https://www.barc.ca
> [5] https://www.rac.ca
> _______________________________________________
> 
> ARM-allstar mailing list
> ARM-allstar at hamvoip.org
> http://lists.hamvoip.org/cgi-bin/mailman/listinfo/arm-allstar
> 
> Visit the BBB and RPi2/3/4 web page - http://hamvoip.org
>