Fresh installation of Leap 16.0 left me without graphic environment of any kind.
That was cured with zypper, so I have KDE, but a lot of small things don’t work as they did with Leap 15.x. One is Plymouth.
It is about 10 years since I was playing with system configuration, so I need help to start.
That catches a few out - forgetting to choose a desktop environment at installation time.
Have a read of this topic…
Saw this on a brand new machine yesterday. It appeared that splash=silent quiet was missing from the kernel parameters. Set that and all is well.
I can’t recall that I had option to choose desktop environment. It was surprisingly spartan installer in, most likely, (Mozilla) browser window. I suspected something wrong when 4.1 GB ISO made installation in 10 minutes. Adding desktop was trivial when I relearned how to install patterns 
Nice to know that splash was changed (removed).
Next is to find out how to convince GRUB to add splash=“silent” to boot options; probably kernel line. Back to read release notes to see what kind of GRUB is now used. It would be 3rd incarnation of GRUB since I started using openSUSE.
Yes, the default installation option is “no” DE … so, if distracted, a person will miss the section to choose the DE of choice.
And yes, the new agama installer is running within Firefox ( 
)
To examine existing boot parameters
cat /proc/cmdline
or current config
update-bootloader --default-settings
Add a parameter eg splash=silent
sudo update-bootloader --add-option splash=silent
sudo update-bootloader --config
then reboot.
Worked nice, but now that Plymouth does not stop, there is some work to make it look good.
Current incarnation of grub, on Leap 16.0 I’m running, has no command video. I would need those numbers to keep same resolution from boot start to finish. Also, for aesthetics, it would be nice not to have grub menu on system that is Linux only.
What is possible to do to create visually pleasing boot?
This may be the answer, but ATM it is beyond my ability to change current system 
Too late to edit :)))
No grub menu “because of aesthetics”, would mean that you won’t be able to choose and boot with another kernel via any GUI.
Also the possibility to manage snapshots would be reduced to commandline.
I’m sure you would cry even more, if you would have to do troubleshooting (choosing other kernels and snapshots) from commandline.
That is what GRUB_TIMEOUT_STYLE=hidden is for.
I had that in mind. Leap, by definition, should not break frequently. I expect 16.x to follow 15.x path. Initial disturbance with 1st version, than no problems for few years.
Tumbleweed is another use case. In that case I would most likely spend much more time playing with system, so breakage can happen at any time.
Speaking of which - menu itself is not a problem. Flicker is.
Yeah, choosing a desktop is there but no option to customize like adding some stuffs like gcc, myrlyn etc. or maybe I was just too blind to see it.
Yep - I rushed the installation of a DE a couple of weeks ago and when confronted with a command prompt, I was confused. I have no problems working from the CLI, but it did throw me for a moment!
But what I would like to know is what use is Plymouth? I don’t really understand what it does or why it exists. I have disabled it and all its updates on our main system - my wife prefers to know that the system is starting and not hanging (15 yo Lenovo laptop)…
Some user prefer to have a boot logo or screen instead of messages. It is like Windows where you also don‘t see boot messages.
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