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I want my system to boot terminal only, but be able to launch Unity once logged in. I've edited /etc/default/grub from : 

GRUB_CMDLINE_LINUX_DEFAULT="quiet splash"

to 

GRUB_CMDLINE_LINUX_DEFAULT="quiet splash text"

and my system launches to the terminal fine, but when I try to launch unity I get:

WARNING: no DISPLAY variable set, setting it to : 0
compiz (core) - Fatal: Couldn't open display : 0

Everything goes back to normal when I restore the original GRUB configuration, so it looks to me like nothing is actually broken.

I'm running in a VM, and have now tested this with a clean install of Ubuntu, as well as with the Amahi installation I am trying to test. The same error occurs with the clean install.

So how can I actually start unity after a system start that doens't start it directly?

share|improve this question
Are you using 12.04? – Anwar Oct 14 '12 at 19:38
2  
How are you trying to start Unity? Are you using startx? – Seth Oct 30 '12 at 14:49

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