Before Getting Started
This section is dedicated to the current development version of Lubuntu. As with all alphas and betas they are not suitable for a production environment, please take the time to read Common Questions for Testing.
Whenever you are testing, keep in mind few notes:
Make sure to Backup your important data. If you are using Linux, the best and easier way is to make a copy of your /home folder or partition. If you want to do a full system backup, please see this link and this link too.
- Using a Development Release is not suitable for daily production machine.
- The more you break your installation, the better. That is why, to play it safe, better to use Virtual Machines, Spare Testing Machines and/or USB Drives, specially with Alpha 1 and Alpha 2. Beta Releases are a bit more stable but still under heavy development.
The most important part of testing is to actually install the system and check how the installation process will work. This is very important. Also, if you have say Alpha 1 installed, it is less helpful to just upgrade it to Alpha 2 or Beta 1. Please, do a fresh new install - you can either zsync your ISO or download again.
Finally, always remember: Better Safe Than Sorry
The Pre-alphas for trusty are now on Daily Builds
Nothing major has yet happened, but do check once in a while as they do tend to get broken at this stage! The quicker such problems are spotted, the easier it is for the developers to track back to what broke. Head over to Daily Builds to grab one.
Why does lubuntu have so many options?
As this question does get asked, there is a page here that explains it.
Please do Join the main mailing lists so that you receive information about where lubuntu is heading.
For Testing Questions, we ask that you join the lubuntu QA team so you can discuss bugs and proposed resolutions.
Always ask if you are in doubt
Within bugs related to lubuntu, you will see bugs raised by, or allocated to Julien Lavergne. Please feel free to add to the comments but do NOT alter the status of these bugs as they are being dealt with by our head of development in readiness for the fix being released.
Please head over to All about bugs for further information on how bug reporting works and why it is so important.
Testing is split into distinct, but joined areas. The Daily Builds, the QA-testing of Milestone releases and the Milestone releases themselves.
To not get overly complicated, think of it as that we have a schedule to keep to. A few days before a Milestone is due, the daily is plucked and becomes the QA (Quality Assurance) test version for the Milestone release. Once it is confirmed that the QA version works, it then becomes the Milestone.
So, in order of how they happen.
These iso's are automatically generated every 24 hours using the latest updates on the system from the devs. They are available from ISO tracker. Using the zsync (or rsync) option allows you to update your iso to any of the various dailies you choose to follow without having to re-download the entire iso. They are there to check that bugs that are resolved between the Milestone releases do not break the install. They also are used to confirm that any fix for a bug that seriously affects an initial install which is released for testing now works. Daily builds are suspended when pre-milestone testing is being carried out (see below).
When do they build?
The Alternates are scheduled to start at 16:29 (UTC) and take approximately 30 - 45 minutes to complete.
The Desktops are also kicked off at this time, but take approximately 90 minutes to complete.
The armfh-ac100 is started at 01:35 (UTC) and should take approximately 30 minutes to complete.
Please note from the release team: Sure, as long as it's clear that it's subject to change - We're not intending to make any promises here. We won't change them around frivolously or anything but it's possible.
QA testing of Milestone releases
Cadence, Beta and Release Candidates (RC) are also tested using ISO tracker. If you want to help out in this important area of testing, please read through Procedures for further details. These appear a couple of days before the actual Milestone release so that we can check they are okay to become Milestone releases.
QA testing is to ensure the actual install iso works, if you can, please get involved in the qa testing
Rebuilding a Release Candidate
These are carried out manually, during this time the release team do update the notice panel. Please ask on #ubuntu-release if you have questions.
Once a Milestone release passes the QA testing, it becomes a Milestone Release and is listed on the Releases as such.
If you would to know more about how this all works, have a read of Stages of testing.
During the release cycle, things will get broken. You can really reduce these occurrences by taking the time to read Partial Upgrades.
All the known issues for a particular release are mentioned in the Announcement email, and are available to see at ISO Tracker.
Manual test of ISO and CD
PPC and Intel Macs
There is now an area for Power PCs and Intel Macs. Please do join to help lubuntu have a release for that system.
You can do more specific tests, like ones done for the Ubuntu ISO : http://iso.qa.ubuntu.com/qatracker/test/5090
Laptops never cease to have their little 'quirks'. You can help on this important area by heading over to Laptop Testing for full details.
Applications test cases
You can also test specific programs :
You can test some aspects of Lubuntu performance with the following programs :
gtkperf : Test the performance of the gtk theme.
phoronix-test-suite: General benchmarks and test suite.
bootchart : Test boot process.
Some packages can be automatically installed, but are not wanted on a default installation. To find the package which automatically installed the package that you don't want :
- Install apt-rdepends
run "apt-rdepends -r --show=Depends the_unwanted_package" => It will show which packages depend on the_unwanted_package.
run "apt-rdepends -r --show=Recommends the_unwanted_package" => It will show which packages recommend the_package_unwanted (Recommended packages are installed by default).
- You may have to run the commands several times to see the complete chain of depends / recommends.
Sometimes during the test cycle one of the developers may ask you to test something specific for them, or their team. For more details of this important area, head over to PPA testing
There are now packages for LXDE components built from upstream git, and re-built when a new revision is committed. It's hosted on the daily build PPA for Lubuntu-dev, packages for currently supported releases plus the development release are available. If you are working on a lubuntu bug, please do test with these ppa areas to check if it has been fixed upstream.
The use of this ppa is as per the above section.