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When I am starting wlan0 it shows me the following error:

SIOCSIFFLAGS: No such file or directory

I should install firmware, How to determine which firmware do I need?

How to determine Wifi card driver name(or module name)?

One person tells me that I should install :iwl5000-firmware- package but is this package for me?

Please help...My OS is CentOS 5.

Also what is firmware for?

Thank you

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up vote 3 down vote accepted

Try lspci, lsusb or dmidecode to find out what make your wireless card is. Once you know that you should only be a Google search away from the correct drivers (or post here and we can help you further).

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Thank yuo I got it!!! – kupa Jul 23 '11 at 20:00

It's actually a lot easier than Xiol suggests. Most drivers that need firmware will write the name of the file, and in some cases the URL to a helpful webpage, directly to dmesg. So all you should have to do is insert your driver, run dmesg, and look at the last few lines of output -- the answer should be right there.

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Thank you for sharing your knowledge with us.I will mention your advice next time when i will have any problem:) – kupa Jul 26 '11 at 12:35

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