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N_Pawar avatar Ubuntu

Ubuntu 20.04 not booting stuck up at Failed to start GNOME Display Manager

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N_Pawar

Have tried nomodeset and the system is not booting up with multiple Failed to start services. I tried multiple solutions from Google but still no luck.enter image description here

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Denis da Mata avatar Ubuntu
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Denis da Mata

There are 2 causes for this problem:

  1. Too big log files in /var/log directory.
  2. Disk full

In the first case, in the /var/log folder, notice that some files are big and have the same size, for example,

  • messages.1: 1.8 GB
  • syslog.1: 1.8 GB
  • user.log.1: 1.8 GB.

In this case, even emptying the disk the problem continues. Some sources suggest not deleting these files, but just emptying it. This can be done in the terminal with the commands

$ > messages.1
$ > syslog.1
$ > user.log.1

If the disk is full, the fisrt case alone will not help, in this case you must access the disk through another partition or through an installer (bootable live USB) and empty the disk.

In my case, the black screen ends at the message

Starting Terminate Plymouth Boot Screen...
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