I'm not sure what you're after... My posts says I'm on the
development release, which most of the time is Lubuntu... The
development release is where all work occurs, and thus it changes regularly, and things can go wrong, meaning problems can be encountered, which is why it's referred to as
unstable.
I update my system at least three times per day, thus hoping I get fewer updates on any particular update, as if problems occur, I have fewer packages to explore as to the possible cause. I'm currently running Lubuntu 25.04 with the
LXQt 2.1 desktop, the desktop itself was only packaged about three days ago in this case, though thus far I've not noticed any problems.
In my example, on reboot I noted two of my five displays were black in that they were getting no images from the PC... three of the displays connected to one video card were still working, but the two connected to one card were gone. As my updates get packages BEFORE the daily ISOs are created, I waited until those packages I was running hit the next
daily ISO, and tested it on a newer zsync'd (or updated) ISO, the reason for this was that my own machine had my own configs that were heavily modified, where the
daily ISO contained none of those modified configs... so when it encountered the same issue, I knew it was related to changed code & not my configs...
In the following days, the problem continued; however in time the
daily ISOs no longer had the issue when booted on my hardware, but my installed system was still suffering with only three of my five displays functional... so I went search for what was different (hadn't updated etc) on my installed system versus the newly built ISOs I was testing when I tried the daily ISOs... After a number of days looking for it, I wanted my system back to fully-operational, so gave up looking & just re-installed the system, meaning the issue was overwritten by a new install.
The install was described in the link I provided, ie.
- the installer notes my installed packages (those the system marks as '
manually-installed', or those I'd installed myself)
- erase system directories
- installs the system from the installation media
- then downloads the noted earlier 'manually installed' packages I had on my system from Ubuntu repositories (ie.
why I prefer using Ubuntu repository software)
- asks me to reboot; all of which did NOT alter any config/data file on my system...
ie. on reboot; my expectation is my system operates just as it did before; as if nothing occurred... Sure if I go look in `/var/log/installer/mediainfo` it'll show the install media wasn't whatever ISO I'd originally used, but showed the date I mentioned (20230829 OR 29th August daily), and the dates of files in the system directories all show the day/time I re-installed, ie. metadata on the file-system & some system files show a new install, but as far as I'm concerned the system acts as if it wasn't re-installed; but my wanted aim was I would have 5 displays back functional - which is what I got...
The re-install did not require me to touch any of my backups, nor restore any file... I achieved what I wanted; a
non-destructive re-install of the system, in effect all system code was erased & replaced by code from the ISO I'd installed from, or re-downloaded from Ubuntu repositories, and none of my configs/data was touched.
If you're wanting to understand it; I'll suggest you re-read the
askubuntu link I provided, or if you need more, follow the link there back to a Lubuntu testcase exploration, as it was a testcase Lubuntu tested for from 19.04 thru 24.04, and in the Lubuntu link I tried to explain it for other Quality Assurance testers.
