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When at the Grub screen for the Ubuntu Live CD you can choose options (by pressing F6) and select an option called pci=off.

What does that mean? How will it change how Ubuntu boots?

Oli
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Tal
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1 Answers1

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From the Linux BootPrompt Howto:

pci=off:

Using this option disables all PCI bus probing. Any device drivers that make use of PCI functions to find and initialize hardware will most likely fail to work.

chaos
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  • Thank you. If I install Ubuntu with that option, I want it will recognized my wireless card. How I do it? – Tal Jun 20 '14 at 09:23
  • The default is that probing takes place in the PCI BIOS and I would let it so, that all devices are recogized. So don't use the pci=off boot option and your wireless card will be recognized. – chaos Jun 20 '14 at 09:40
  • But I can't. If i don‘t use this option, the Ubuntu 14.04 will not load (the live image). I need a solution after installation. – Tal Jun 20 '14 at 09:46
  • @Tal it's ok to boot the live image this way. This is just the boot option for the live system, not for the installation afterwards. – chaos Jun 20 '14 at 09:51
  • Ok. Then if I install Ubuntu that way and then it not recognize the wireless card, I need other solution? – Tal Jun 20 '14 at 09:52
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    Not connected, disabled, broken or not recognized by the BIOS, can be many faults. In the installed system, when you type lspci in the terminal and there is a entry starting with Network controller: blah blah Wireless blah blah, and iwconfig shows the wireless card, then your card is recognized and running. – chaos Jun 20 '14 at 09:57
  • I have other question with all the information. You mind to look at it? – Tal Jun 20 '14 at 09:59
  • If your have another question, please ask them here with a new question: http://askubuntu.com/questions/ask – chaos Jun 20 '14 at 10:01
  • Already have. Please look at it. Thanks for your time. – Tal Jun 20 '14 at 10:01