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I finally made the switch from windows to Linux. CentOS to be precise. Unfortunately, I am unable to have my wireless connection working, so accessing the web is a hassle. Following directions on the web i was directed to

yum install wireless-tools

It says "Package 1:wireless-tools-29-5.1.1.el6.x86_64 already installed and latest version"

I was also directed to

sudo ifconfig -a

which resulted in

eth0      Link encap:Ethernet  HWaddr B8:88:E3:34:E5:07  
      inet addr:192.168.0.155  Bcast:192.168.0.255  Mask:255.255.255.0
      inet6 addr: fe80::ba88:e3ff:fe34:e507/64 Scope:Link
      UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
      RX packets:397682 errors:0 dropped:0 overruns:0 frame:0
      TX packets:229592 errors:0 dropped:0 overruns:0 carrier:0
      collisions:0 txqueuelen:1000 
      RX bytes:578549471 (551.7 MiB)  TX bytes:17894242 (17.0 MiB)
lo        Link encap:Local Loopback  
      inet addr:127.0.0.1  Mask:255.0.0.0
      inet6 addr: ::1/128 Scope:Host
      UP LOOPBACK RUNNING  MTU:16436  Metric:1
      RX packets:98 errors:0 dropped:0 overruns:0 frame:0
      TX packets:98 errors:0 dropped:0 overruns:0 carrier:0
      collisions:0 txqueuelen:0 
      RX bytes:7154 (6.9 KiB)  TX bytes:7154 (6.9 KiB)

people say that wlan0 is supposed to be there too. but I don't know how to get it in there.

lspci -v

the result

00:00.0 Host bridge: Intel Corporation 2nd Generation Core Processor Family DRAM Controller (rev 09)
03:00.0 Network controller: Realtek Semiconductor Co., Ltd. RTL8188CE 802.11b/g/n WiFi Adapter (rev 01)
Subsystem: Realtek Semiconductor Co., Ltd. Device 8195
Flags: bus master, fast devsel, latency 0, IRQ 11
I/O ports at 4000 [size=256]
Memory at f2d00000 (64-bit, non-prefetchable) [size=16K]
Capabilities: [40] Power Management version 3
Capabilities: [50] MSI: Enable- Count=1/1 Maskable- 64bit+
Capabilities: [70] Express Endpoint, MSI 00
Capabilities: [100] Advanced Error Reporting
Capabilities: [140] Virtual Channel
Capabilities: [160] Device Serial Number 01-91-81-fe-ff-4c-e0-00
0c:00.0 Ethernet controller: Realtek Semiconductor Co., Ltd. RTL8111/8168/8411 PCI Express Gigabit Ethernet Controller (rev 07)
Subsystem: Lenovo Device 5000
Flags: bus master, fast devsel, latency 0, IRQ 31
I/O ports at 2000 [size=256]
Memory at f1404000 (64-bit, prefetchable) [size=4K]
Memory at f1400000 (64-bit, prefetchable) [size=16K]
Capabilities: [40] Power Management version 3
Capabilities: [50] MSI: Enable+ Count=1/1 Maskable- 64bit+
Capabilities: [70] Express Endpoint, MSI 01
Capabilities: [b0] MSI-X: Enable- Count=4 Masked-
Capabilities: [d0] Vital Product Data
Capabilities: [100] Advanced Error Reporting
Capabilities: [140] Virtual Channel
Capabilities: [160] Device Serial Number dd-43-00-00-68-4c-e0-00
Kernel driver in use: r8169
Kernel modules: r8169
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Check the manual over here. centos.org/docs/5/html/Deployment_Guide-en-US/… –  Ramesh May 1 at 3:16
    
@Ramesh, I already went through that. didnt help –  Don U May 1 at 3:27
    
@WarrenYoung I would like to become a Linux Admin. I am just getting into Hadoop which is based on linux(mostly centOS) so i figured i should play around with it. –  Don U May 1 at 3:28
    
CentOS can be used as desktop OS but there are better ones, I strongly recommend Linux Mint. CentOS is more focused on Server platforms. –  Ask and Learn May 1 at 6:34

1 Answer 1

up vote 0 down vote accepted

CentOS 6 runs a pretty old kernel, being a stable[*] Linux distribution that is now about 3 years old. Yes, CentOS 6 still gets updates, but they deliberately do not upgrade the kernel any more than they have to. (It's still running 2.6.32, whereas current is 3.14.)

There is a chance that you could download and compile a newer Intel WiFi driver, but even that can be difficult when the gap between the kernel you're using and the kernel the driver was first developed for gets so large.

This is why I suggested trying Fedora or the RHEL 7 release candidate on that machine. Simply having a newer kernel may solve the problem.

There's nothing about Hadoop or wanting to become a Linux admin that requires that you use CentOS 6. RHEL 7 will be out soon, and CentOS 7 should follow soon thereafter. Unless you're looking to jump into maintaining a set of existing CentOS 6 boxes, you might as well start learning the newer tech anyway.

Another good option is to run CentOS 6 in a VM underneath an OS that does support your wireless network interface. Linux runs great in VMs.


[*] "Stable" as opposed to a bleeding edge Linux distro, the sort that will adopt newer tech with less vetting, and therefore less delay.

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