Subj : Re: Cleaning up stale logs in Bookworm
To   : All
From : Knute Johnson
Date : Mon Sep 15 2025 07:37:25

On 9/14/25 15:04, bp@www.zefox.net wrote:
> The Natural Philosopher <tnp@invalid.invalid> wrote:
>> Are these old style logs or the dreaded systemd?
>>
> 
> This is a systemd machine, but after looking around in response to
> suggestions made above it seems less than  5 MB is used by journals.
> That's not enough to matter.
> 
> Evidently I've just added too many packages.
> 
> Is there some way to coax the Add/Remove Programs application
> to list installed packages, ideally by size? Then I can clean
> house manually. The chromium browser will likely be the first
> to go 8-)
> 
> Thanks to all for replying, and apologies for the misguided question!
> 
> bob prohaska
> 

Edit /etc/systemd/journald.conf file to enable SystemMaxUse and set it 
equal to some value that will give you enough but not too much logs.  I 
use 128M.  If you have files building up in /var/log, every month I 
delete all the .gz archived logs.  This is an example script:

#!/bin/bash

echo "delete-old-logs"

rm -v /var/log/*.gz
rm -v /var/log/apache2/*.gz
rm -v /var/log/apt/*.gz
rm -v /var/log/cups/*.gz
rm -v /var/log/lightdm/*.gz
rm -v /var/log/unattended-upgrades/*.gz

Change or add to the list above according to you actual needs.

8GB if you have a desktop installed is probably a little small for 
Bookworm.  I tell my employer he needs to use a 16GB uSD for Bookworm 
with a desktop.  8GB was fine on Buster but just isn't enough any more.

-- 

Knute Johnson

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