18.04 hangs on boot after system software update











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I have two users on a fresh install of Ubuntu 18.04.



Normally I work with user1. Today I switched to user2 and started software update. (As far as I remember a few things were installed and some unnecessary ones removed).



When I rebooted it stopped for a long time at the first dot of the splash screen. So I pressed Ctrl+Alt+Del. Then the system shut down.



Now system boots until the splash screen and then switches to text mode. Last message:



ubuntu 18.04 boot  "Started GNOME Display Manager. Dispatcher Service ....rfkill Watch.   
Started Restore /etc/resolv.conf if the system crashed before the ppp link was shut down."


With Ctrl+Alt+F1/F2 I can log in. The first time a message appeared that Canonical live patch applied 0 or so.



The machine is normally running 7/24 and is very important to me! How should I proceed?



enter image description here



EDIT:



now comes:
ubuntu 18.04 boot "started GNOME Display Manager. Dispatcher Service ....d before the ppp link was shut down"










share|improve this question




















  • 1




    Exactly which kernel? (It's important - one has a critical bug in process as of 03 July 2018)
    – user535733
    Jul 4 at 21:51










  • How to find out?
    – ssssstut
    Jul 4 at 22:00










  • Boot from a LiveUSB and look in /boot.
    – user535733
    Jul 4 at 22:02










  • I can login user ctrl + alt + f1 f2. uname -r says 4.15.0-24-generic. I'm new to linux. Should I proceed as described here? askubuntu.com/questions/1051555/…
    – ssssstut
    Jul 4 at 22:09








  • 2




    Possible duplicate of After "security update" to 4.15.0-24-generic #26-Ubuntu screen shows log content not login
    – WinEunuuchs2Unix
    Jul 5 at 1:50















up vote
1
down vote

favorite
1












I have two users on a fresh install of Ubuntu 18.04.



Normally I work with user1. Today I switched to user2 and started software update. (As far as I remember a few things were installed and some unnecessary ones removed).



When I rebooted it stopped for a long time at the first dot of the splash screen. So I pressed Ctrl+Alt+Del. Then the system shut down.



Now system boots until the splash screen and then switches to text mode. Last message:



ubuntu 18.04 boot  "Started GNOME Display Manager. Dispatcher Service ....rfkill Watch.   
Started Restore /etc/resolv.conf if the system crashed before the ppp link was shut down."


With Ctrl+Alt+F1/F2 I can log in. The first time a message appeared that Canonical live patch applied 0 or so.



The machine is normally running 7/24 and is very important to me! How should I proceed?



enter image description here



EDIT:



now comes:
ubuntu 18.04 boot "started GNOME Display Manager. Dispatcher Service ....d before the ppp link was shut down"










share|improve this question




















  • 1




    Exactly which kernel? (It's important - one has a critical bug in process as of 03 July 2018)
    – user535733
    Jul 4 at 21:51










  • How to find out?
    – ssssstut
    Jul 4 at 22:00










  • Boot from a LiveUSB and look in /boot.
    – user535733
    Jul 4 at 22:02










  • I can login user ctrl + alt + f1 f2. uname -r says 4.15.0-24-generic. I'm new to linux. Should I proceed as described here? askubuntu.com/questions/1051555/…
    – ssssstut
    Jul 4 at 22:09








  • 2




    Possible duplicate of After "security update" to 4.15.0-24-generic #26-Ubuntu screen shows log content not login
    – WinEunuuchs2Unix
    Jul 5 at 1:50













up vote
1
down vote

favorite
1









up vote
1
down vote

favorite
1






1





I have two users on a fresh install of Ubuntu 18.04.



Normally I work with user1. Today I switched to user2 and started software update. (As far as I remember a few things were installed and some unnecessary ones removed).



When I rebooted it stopped for a long time at the first dot of the splash screen. So I pressed Ctrl+Alt+Del. Then the system shut down.



Now system boots until the splash screen and then switches to text mode. Last message:



ubuntu 18.04 boot  "Started GNOME Display Manager. Dispatcher Service ....rfkill Watch.   
Started Restore /etc/resolv.conf if the system crashed before the ppp link was shut down."


With Ctrl+Alt+F1/F2 I can log in. The first time a message appeared that Canonical live patch applied 0 or so.



The machine is normally running 7/24 and is very important to me! How should I proceed?



enter image description here



EDIT:



now comes:
ubuntu 18.04 boot "started GNOME Display Manager. Dispatcher Service ....d before the ppp link was shut down"










share|improve this question















I have two users on a fresh install of Ubuntu 18.04.



Normally I work with user1. Today I switched to user2 and started software update. (As far as I remember a few things were installed and some unnecessary ones removed).



When I rebooted it stopped for a long time at the first dot of the splash screen. So I pressed Ctrl+Alt+Del. Then the system shut down.



Now system boots until the splash screen and then switches to text mode. Last message:



ubuntu 18.04 boot  "Started GNOME Display Manager. Dispatcher Service ....rfkill Watch.   
Started Restore /etc/resolv.conf if the system crashed before the ppp link was shut down."


With Ctrl+Alt+F1/F2 I can log in. The first time a message appeared that Canonical live patch applied 0 or so.



The machine is normally running 7/24 and is very important to me! How should I proceed?



enter image description here



EDIT:



now comes:
ubuntu 18.04 boot "started GNOME Display Manager. Dispatcher Service ....d before the ppp link was shut down"







boot gnome 18.04






share|improve this question















share|improve this question













share|improve this question




share|improve this question








edited Jul 5 at 5:19









karel

56.4k11124142




56.4k11124142










asked Jul 4 at 21:49









ssssstut

315




315








  • 1




    Exactly which kernel? (It's important - one has a critical bug in process as of 03 July 2018)
    – user535733
    Jul 4 at 21:51










  • How to find out?
    – ssssstut
    Jul 4 at 22:00










  • Boot from a LiveUSB and look in /boot.
    – user535733
    Jul 4 at 22:02










  • I can login user ctrl + alt + f1 f2. uname -r says 4.15.0-24-generic. I'm new to linux. Should I proceed as described here? askubuntu.com/questions/1051555/…
    – ssssstut
    Jul 4 at 22:09








  • 2




    Possible duplicate of After "security update" to 4.15.0-24-generic #26-Ubuntu screen shows log content not login
    – WinEunuuchs2Unix
    Jul 5 at 1:50














  • 1




    Exactly which kernel? (It's important - one has a critical bug in process as of 03 July 2018)
    – user535733
    Jul 4 at 21:51










  • How to find out?
    – ssssstut
    Jul 4 at 22:00










  • Boot from a LiveUSB and look in /boot.
    – user535733
    Jul 4 at 22:02










  • I can login user ctrl + alt + f1 f2. uname -r says 4.15.0-24-generic. I'm new to linux. Should I proceed as described here? askubuntu.com/questions/1051555/…
    – ssssstut
    Jul 4 at 22:09








  • 2




    Possible duplicate of After "security update" to 4.15.0-24-generic #26-Ubuntu screen shows log content not login
    – WinEunuuchs2Unix
    Jul 5 at 1:50








1




1




Exactly which kernel? (It's important - one has a critical bug in process as of 03 July 2018)
– user535733
Jul 4 at 21:51




Exactly which kernel? (It's important - one has a critical bug in process as of 03 July 2018)
– user535733
Jul 4 at 21:51












How to find out?
– ssssstut
Jul 4 at 22:00




How to find out?
– ssssstut
Jul 4 at 22:00












Boot from a LiveUSB and look in /boot.
– user535733
Jul 4 at 22:02




Boot from a LiveUSB and look in /boot.
– user535733
Jul 4 at 22:02












I can login user ctrl + alt + f1 f2. uname -r says 4.15.0-24-generic. I'm new to linux. Should I proceed as described here? askubuntu.com/questions/1051555/…
– ssssstut
Jul 4 at 22:09






I can login user ctrl + alt + f1 f2. uname -r says 4.15.0-24-generic. I'm new to linux. Should I proceed as described here? askubuntu.com/questions/1051555/…
– ssssstut
Jul 4 at 22:09






2




2




Possible duplicate of After "security update" to 4.15.0-24-generic #26-Ubuntu screen shows log content not login
– WinEunuuchs2Unix
Jul 5 at 1:50




Possible duplicate of After "security update" to 4.15.0-24-generic #26-Ubuntu screen shows log content not login
– WinEunuuchs2Unix
Jul 5 at 1:50















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