Was not logged in yet (SF is so damn old... would be really great to have Webminstats on GitHub too!)... feel free to delete https://sourceforge.net/p/webminstats/bugs/105/.
diskio module: only relies on physical block devices, not working with LUKS encrypted devices
I was told something similar by an AI, mentioning it is basically possible but needs tweaking and re-creating the rrd files which is kind of tricky. So to sum up: if one wants to have Webminstats data for more than 1 year - it is currently not possible and likely never will be due to the tech stack. Feels a bit outdated to be honest. Webminstats could maybe think about a new, "a bit" more flexible data storage. rrd is so so limited... what a bummer :-(
Extend record time
Bugging me as well. This definitely should be fixed finally (!)
The sed command worked and fixed it. Neither manual miniserv.pl fix did, nor did Webmin 1.971.
I want to highlight that I ran into this issue too (see https://sourceforge.net/p/webadmin/bugs/5442/?page=2&limit=25#cfc7). First updated to dev webmin 1.971 which DID NOT fix this issue. I had to manually run sudo sed -i 's/perl -w/perl/' *.pl *.cgi in /usr/share/webmin/sysstats to fix it. So maybe you want to check if that "fix" really is part of Webmin 1.971. Update: on a 2nd machine affected, I only run the sed command while webmin still on 1.970 and authentic-theme on 19.70 - and it fixed it...
I want to highlight that I ran into this issue too (see https://sourceforge.net/p/webadmin/bugs/5442/?page=2&limit=25#cfc7). First updated to dev webmin 1.971 which DID NOT fix this issue. I had to manually run sudo sed -i 's/perl -w/perl/' *.pl *.cgi in /usr/share/webmin/sysstats to fix it. So maybe you want to check if that "fix" really is part of Webmin 1.971.