Boot hangs before graphic login
Affects | Status | Importance | Assigned to | Milestone | |
---|---|---|---|---|---|
systemd (Ubuntu) |
Incomplete
|
Undecided
|
Unassigned |
Bug Description
Please note: there are obviously several different causes for this error. Other reports on launchpad and elsewhere identified sddm, systemd, nvidia drivers and grub config. Since none of the solutions mentioned there helped in my case, I am deliberately leaving the information on the source package open.
I have upgraded to Kubuntu Vivid 15.04 shortly after the final release and used that without issues until two days ago when I ran updates (apt log attached).
Ran »sudo systemctl enable sddm.service -f«, then reboot: no change.
Changed the GRUB_CMDLINE_
I do not have nvidia or nouveau driver packages installed.
I am aware that 219 is the current systemd version, so I tried the upstart option in grub. Hangs, too (though with different error message).
»systemctl start sddm« asks for password, the returns »authentication complete« (in all-caps); nothing else happens.
Re-installing linux-generic or kubuntu-desktop had no effect.
What can I do to at least identify the cause of this issue?
Can you please boot with dropping "quiet" and "splash", by editing the "linux" line in the GRUB boot menu. Where do you end up? Do you get a "login:" prompt where you can login? If not, please do a screenshot (with a camera) and attach that, there's hopefully some text which shows where exactly it gets stuck. Where did you type the "systemctl start sddm" command? is that a rescue shell, or did you log in as your user?
Either way, if you are able to run commands, please try to attach /var/log/syslog to this bug, it should have some useful information. Thanks!