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i have installed Ubuntu 15.04 64bit on my laptop (lenovo e531) alongside with windows 8.1 and while trying to install wifi driver i found this method Installing Broadcom Wireless Drivers but when i try this command :sudo "apt-get install linux-firmware-nonfree it gives me this error :

E: Could not get lock /var/lib/dpkg/lock - open (11: Resource temporarily unavailable)

E: Unable to lock the administration directory (/var/lib/dpkg/), is another process using it?

any help is appreciated.

Community
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Mohanad1994
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1 Answers1

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OK I fixed it

Just go to system setting then chose software and updates and make sure your choices are like the screenshot :

enter image description here

I believe the problem was that I checked the installable from cd/dvd room and "download from" I chose my country which I changed to main server.

Pierre.Vriens
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Mohanad1994
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