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I have modified the DEFAULT_RUNLEVEL from 2 (graphical interface) to 1 in rc-sysinit.conf, to install drivers for GPU. After choosing either default or recovery mode, I see just black screen. Any ideas, what went wrong and how to get into text interface or at least revert the changes?

Any help will be much appreciated. I am running Ubuntu 12.04 as a second system.

Elder Geek
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user35001
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1 Answers1

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  1. Boot using a live CD / USB
  2. Mount partition of the installed Ubuntu
  3. Change back DEFAULT_RUNLEVEL=2 in rc-sysinit.conf
  4. Reboot.

Now, it should get back as it was. To install the graphic driver (no need to do such thing):

  1. Press Ctrl+Alt+F1 to switch to tty1 terminal

  2. Stop X server

    sudo stop lightdm

  3. Install needed driver

  4. Then reboot

    sudo reboot
user.dz
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