Network Fix for RTL8111/RTL8168 Boards and Cards

Most of these needs to be done with sudo on Pathpilot. so I'm adding those as needed

1) Check to see if the r8169 module is loaded
-> lsmod | grep r816
r8168 41104 0 
-> lspci -v  note: you'll get some permission errors without sudo but the needed verification works without it
01:00.0 Ethernet controller: Realtek Semiconductor Co., Ltd. RTL8111/8168B PCI Express Gigabit Ethernet controller (rev 03)
Subsystem: ASRock Incorporation Device 8168
Kernel driver in use: r8169
Kernel modules: r8169

2) Download the official Realtek driver
[url=http://www.realtek.com.tw/downloads/downloadsView.aspx?Langid=1&PNid=13&PFid=5&Level=5&Conn=4&DownTypeID=3&GetDown=false#2]Realtek RTL8111/RTL8168[/url]

3) Remove the r8169 module
-> sudo rmmod r8169
-> sudo mv /lib/modules/`uname -r`/kernel/drivers/net/r8169.ko ~/r8169.ko.backup
( the ` is a backtick, it is not an apostrophe or single quote )

4) Build the new r8168 module for the kernel
-> bzip2 -d r8168-8.009.00.tar.bz2
-> tar -xf r8168-8.009.00.tar
-> cd r8168-8.009.00
-> make clean modules
-> sudo make install

5) Rebuild the kernel module dependencies
-> sudo depmod -a
-> sudo insmod ./src/r8168.ko

6) Remove the r8169 module from initrd
-> mv /boot/initrd.img ~/initrd.img.backup
-> mkinitramfs -o /boot/initrd.img-`uname -r` `uname -r`

Note I changed this a little since in the pathpilot build initrd.img is a symlink in the root so you need to backup the actual file not the symlink.  doing so would break the boot since the symlink is renamed.

7) Add r8168 module to /etc/modules
-> sudo echo "r8168" >> /etc/modules
I had trouble with this one even with sudo so i sudo gedit /etc/modules and it worked fine

8) Reboot, You are done!

9) Examine that ONLY the r8168 module is loaded for the interface
-> lspci -v
01:00.0 Ethernet controller: Realtek Semiconductor Co., Ltd. RTL8111/8168B PCI Express Gigabit Ethernet controller (rev 03)
Subsystem: ASRock Incorporation Device 8168
Kernel driver in use: r8168
Kernel modules: r8168

If you need to, configure your /etc/network/interfaces for dhcp or static address then `sudo ifup eth0`
I added this to /etc/network/interfaces
auto eth0
iface eth0 inet dhcp
!!do not remove the!! 
auto lo
iface lo inet loopback