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I boot Ubuntu. I was browsing on Firefox in Ubuntu and all of a sudden I got some error message, so I tried to reboot. Now when I try to reboot I get this message:

ACPI Error: Needed type [Reference], found [Integer] ...
ACPI Exception: AE_AML_OPERAND_TYPE, while resolving operands for [Store] (20170831/dswexec-461)
ACPI Error: Method parse/ execution failed   
 \_PR.CPU0._AE_AML_OPERAND_TYPE (201708/psparse-550)
Busybox, v1.27.2 (ubuntu 1:1.27.2-2ubuntu3), built-in shell (ash)   
 Enter 'help' for a list of built-in commands    
(initramfs)  
  • Do you have automatic system updates turned on? – WinEunuuchs2Unix Jun 5 '18 at 15:10
  • No, i don't I'm used to be ask and then I allow the Updates – Anne-Michèle Hambye Jun 6 '18 at 5:56
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At the black screen where the boot process has stopped press the keyboard combination Ctrl+Alt+F3 to access a text-only virtual console.

To login from a virtual console:

  1. At the login: prompt type your username and press Enter.

  2. At the Password: prompt type your user password and press Enter.

Check that the necessary proprietary graphics driver is installed. Run the following commands:

sudo ubuntu-drivers autoinstall
sudo reboot   

The autoinstall command of ubuntu-drivers installs drivers that are appropriate for automatic installation including their dependencies.

If you're unable to access a virtual console, the next logical step is to check if it is caused by a hardware issue by booting to a Linux session from any Linux live USB. If that doesn't work either temporarily either remove or swap your computer's discrete graphics card if your computer has one to test if the graphics card is broken and needs to be replaced.

  • I can't boot, so that I don't come on.the terminal – Anne-Michèle Hambye Jun 5 '18 at 14:53
  • I tried but I eaven come on the terminal on.this way. I come ever on.the same message. See question – Anne-Michèle Hambye Jun 6 '18 at 6:02
  • I edited my answer with my reply to the above comment. – karel Jun 6 '18 at 6:07

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