Installing Debian 7 x64 ethernet card & wifi in Lenovo B490

Last week, I got problem for enabling ethernet card & wifi in Lenovo B490 after installing Debian 7.1 x64. I need to install it offline for at least enabling ethernet card or wifi to make it online. After googling, i decided to enable ethernet card first to make it online (easier).

To install ethernet card in lenovo B490, it uses chipset realtek r8169 and it needs to install its firmware manualy from debian.org. follow these step to install it:

1. Download realtek r8169 firmware https://packages.debian.org/wheezy/all/firmware-realtek/download
2. Install it by run this command
   # dpkg -i firmware-realtek_0.36+wheezy.1_all.deb

After that, make it online, and add repository required to update your system. Wifi in lenovo B490 uses chipset bcm43142 that does not exist in debian repository. I follow this guide http://forums.debian.net/viewtopic.php?f=30&t=109498 to install its wifi. Here are steps to do:

1. Download the driver from https://mega.co.nz/#!qIUySZYJ!PgfNRVCcXO-enbDuhziUqVCriMcDhbU-houaQ97c0yM
   or the link was broken just search in google "download wireless-bcm43142-dkms_6.20.55.19-1_amd64.deb" or from this server
2. Install it manualy bu run this command
   # dpkg -i download wireless-bcm43142-dkms_6.20.55.19-1_amd64.deb
3. Install network-manager by run this command
   # apt-get install network-manager

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