Score:-1

Ubuntu 18.04 fails to boot fully, "p link was shut down"

cn flag

On Boot Screen Log:

[ OK ] Sarted GNOME Display Manager. Dispatcher Service....proxy server...p link was shut down.

OS: Ubuntu 18.04.6 (last 32-bit) Linux 4.15.0-176-generic Gnome: 3.28.2

I could log in via ssh and I tried: Ubuntu fails to boot fully, stuck in log screen "ppp link was shut down" Solution b and then Solution a, but both didn't help. Then I did sudo apt purge gdm gdm3 and now I even can't login via ssh anymore. Also Alt-F2/Alt-F7 on the PC directly didn't help.

Next I tried: Ubuntu doesn't start, with a message 'Started GNOME Display Manager. Dispatcher Service... system changes.pp link was shut down' while reinstalling sudo apt install gdm3 ubuntu-desktop, but it didn't help either.

CLI only would be sufficient for me as well. How can i downgrade the desktop/gnome environment? But full functionality would be appreciated.

David avatar
cn flag
I am confused. How does the down grading of Gnome or any DE fix the problem. Also no you can not do that.
Zykrates avatar
cn flag
It seems the gdm causes the problem, so the removal of the gdm and the only use of the cli could solve the problem, as i my understanding the cli does not need the gdm/gdm3 to work. What does "DE" mean? After waiting a while, the boot process somehow continued and now I can login with ssh again, but the screen is only showing the _ bar
David avatar
cn flag
DE means Desktop Environment.
Score:1
cn flag

If you want CLI only, I recommend you reinstall with Ubuntu Server.

Removing gdm from your install should not affect openssh-server. So I am not sure what happened there.

If you have data on your current install, and don't want to reinstall, I recommend you use the "Advanced Options" in the GRUB boot menu, and boot in Recovery Mode.

When in single-user text mode you could investigate your ssh issue, or uninstall components you no longer need. Like the ubuntu-desktop package.

A minimal OS like ubuntu-server is less likely to have issues, and also: what GPU are you using?

Zykrates avatar
cn flag
`VGA compatible controller: NVIDIA Corporation NV5 [Riva TNT2 Model 64 / Model 64 Pro] (rev 15) (prog-if 00 [VGA controller]) Subsystem: PROLINK Microsystems Corp Pixelview RIVA TNT2 M64 Flags: bus master, 66MHz, medium devsel, latency 32, IRQ 12 Memory at ea000000 (32-bit, non-prefetchable) [size=16M] Memory at e8000000 (32-bit, prefetchable) [size=32M] [virtual] Expansion ROM at 000c0000 [disabled] [size=128K] Capabilities: <access denied> Kernel modules: rivafb, nvidiafb, nouveau` (very old) do you think it is broken somehow?
Score:0
cn flag

It seems I accidentally updated to Ubuntu 18.04.6, however 16.04.6 is the last 32-Bit version. The 18.04.6 worked for a short time, probably until the gnome desktop manager (gdm) was updated. The other programs as ssh etc. seemed to still work.

Why i couldn't log in via ssh i still can't tell, maybe it took more time to restart due to the gdm issue and i wasn't patient enough to wait, as the gdm is started first and then the openssh-server.

I reinstalled version 16.04.6 from scratch and it works again. I had some trouble with the hdd so i can't tell if a corrupted package was also the cause of this problem. I will test the hdd soon and give update about it.

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