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I'm not very familiar with Ubuntu, hope to not bother you too much.

I had Ubuntu 12.04 LTS on my HP Pavillion dv7-2005eg, after not being able to fix the Intel/AMD hybrid graphics disaster in 12.10.

Everything went smooth until I gave in to the always popping up upgrade to 13.04 window...

Well since then, nothing is working. If I boot I get the 'running in low graphic mode' prompt and can only access tty1. Trying to install the drivers from there didn't work, flgrxinfo always tells me that 'error: unable to open display (null)' although it's installed, I don't even know how these things are connected.

My question is can I reinstall Ubuntu 12.04 from that terminal, it has internet connection. I tried to boot it from a USB drive created on MAC OS with unetbootin but it simply doesn't boot that even if I choose it from the BIOS boot list.

Would be real grateful, have been searching on-line but could not find anything like that, sorry if it's a double post.

Thanks in advance...

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I think it's hard to impossible to install a system on the same disk the installer is running from. Maybe you can fix your misbehaving installation. First, fglrxinfo will only work if you are running a graphical session, so the error it gives is normal. Have you tried to backup and then delete /etc/X11/xorg.conf and then run 'sudo aticonfig --initial' from terminal? This will create a fresh /etc/X11/xorg.conf ready to be used with fglrx. For installation I'd recommend to burn a Ubuntu installation DVD. I sometimes had troubles making a USB drive bootable (took several attempts)... –  soulsource May 16 '13 at 10:51
    
Thanks, will just try it via cd :) –  maximilian May 17 '13 at 13:49
    
try archlinux it's completely install via terminal only –  Mahmoud20070 Sep 25 '13 at 10:50
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