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The boot takes like a minute, after that, it will go to a black screen with a blinking pointer. It doesn't react to any stroke. Ctrl Alt F1 or F2 ... won't work.

there is no GRUB.

Even PrintScreen+AltGr+B doesn't work but PrintScreen+AltGr+O does.

In the middle of the boot I get like 5 seconds where I can switch to tty1, but before I get the chance to fully type my credentials, the system will go to the black screen.

I would like to find a combination to force the system to boot on the shell and stops trying to run X because I think this is where the system hangs.

Any idea how do I recover? (I kept the old drivers installation)

PS: I am aware of all the similar posts here, but no one tells how to just get to the shell when Ctr Alt F1 is stuck.

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Can you get the GRUB menu to show by holding down left shift during boot? –  konapun Oct 31 '13 at 14:55
yes, thanks! just tried and it did work (going into GRUB). Now, what to do ? –  BiAiB Oct 31 '13 at 15:00
Great! You're going to want to boot into a recovery shell from that menu (with internet access). From there you can just use apt-get purge to remove the bad driver. After that, you should be able to restart and boot normally. –  konapun Oct 31 '13 at 15:02
ok, I boot in the recovery mode, then selected "shell (root)" option at the screen prompt. But it tells me the system is mounted read-only. Also, will apt-get purge work since I installed the driver by executing the binary executable from NVIDIA ? –  BiAiB Oct 31 '13 at 15:07
You can remount it as r/w mount -o rw,remount / –  konapun Oct 31 '13 at 15:10

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