if Change to RAID mode from AHCI mode or IDE mode without re-installing OS

 

1.Exit all Windows-based programs.

 2.Press [Win] + R or take the RUN option from the start menu.

 3.Now type regedit there and press Enter Key to open up the Registry Editor Window.

 4.If you receive the User Account Control dialog box, click Continue.

 5.Locate and then click the following registry subkeys: 

Code:

 HKEY_LOCAL_MACHINE\System\CurrentControlSet\Services\msahci

HKEY_LOCAL_MACHINE\System\CurrentControlSet\Services\iaStorV

HKEY_LOCAL_MACHINE\System\CurrentControlSet\Services\iaStor

 

6.In the right pane, right-click Start in the Name column, and then click Modify.

 7.In the Value data box, type 0 [3 is default], and then click OK.

 8.On the File menu, click Exit to close Registry Editor.

 9.Restart your computer

 10.Go to UEFI/BIOS and enable RAID, Save & Reboot

 11.Another restart will be required to finish the driver installation.

sudo nano /etc/network/interfaces

Enter your root password, once your prefered editor opens the file you can see...

auto lo eth0

iface lo inet loopback

iface eth0 inet dynamicIf you have more than one network card, please be sure to make changes to the correct network interface.

Statically configured network cards will have a section like:

auto lo eth0

iface lo inet loopback

iface eth0 inet static

        address xxx.xxx.xxx.xxx(enter your ip here)

        netmask xxx.xxx.xxx.xxx

        gateway xxx.xxx.xxx.xxx(enter gateway ip here

Manually restart your network interface with the new settings:

sudo /etc/init.d/networking restart

53.25 watt hour for battery life 

sudo fdisk -l

Find your device in the list, it is probably something like /dev/sdb1. For more information about filesystems, see LinuxFilesystemsExplained. 

Create the Mount Point

 

Now we need to create a mount point for the device, let's say we want to call it "external". You can call it whatever you want, just please don't use spaces in the name or it gets a little more complicated - use an underscore to separate words (like "my_external"). Create the mount point: 

sudo mkdir /media/external

 

Mount the Drive

 

We can now mount the drive. Let's say the device is /dev/sdb1, the filesystem is FAT16 or FAT32 (like it is for most USB flash drives), and we want to mount it at /media/external (having already created the mount point): 

sudo mount -t vfat /dev/sdb1 /media/external -o uid=1000,gid=1000,utf8,dmask=027,fmask=137

The options following the "-o" allow your user to have ownership of the drive, and the masks allow for extra security for file system permissions. If you don't use those extra options you may not be able to read and write the drive with your regular username. 

Otherwise if the device is formatted with NTFS, run: 

sudo mount -t ntfs-3g /dev/sdb1 /media/external

Installing the BXbenchV1556

first you have to change permissions on the folders 

sudo chown -R username:username /var/www/html/html

Then you can just drop the bxbench_v1556.tgz into the folder html, then select extract. ALL DONE!

======================================================================================================

how to create ubuntu ISO USB

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Isntalling Chrome OS

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Installing

To run this benchmark you will need the following hardware :

 Server specs

 Processor: x86 quad core 2GHz or better

 Memory: 4Gb DDR2 or better

 Router specs

 Wifi router: DLink DIR-615 or better

And the following software :

 Install Ubuntu linux 10.04.1 (lucid lynx, stable)

 Install Apache version 2.2.14-5 (sudo apt-get install apache2/lucid=2.2.14-5)

 Install PHP version 5.3.2-1 (sudo apt-get install php5/lucid=5.3.2-1)

Once the server is up and running, install the benchmark :

1 Copy the benchmark distribution to the server and unpack it in /var/www/html 

sudo mkdir -p /var/www/html && sudo chmod a+wx /var/www/html

cd /var/www/html && tar -vzxf <path to tarball>

2 Create a writeable folder for the server to save results. 

mkdir /var/www/html/bench/results && chmod a+wx /var/www/html/bench/results

3 Update the apache2 configuration to run the benchmark 

cd /var/www/html/install && chmod +x ubuntu_bbench.sh && sudo ./ubuntu_bbench.sh

sudo apache2ctl restart

4 Enable apache user to run /sbin/tc as super user 

+

sudo visudo

 In vi, add the following line to the end of the file:

 www-data ALL = NOPASSWD: /sbin/tc

Running in server mode

From a client running a browser, go to the server ip address or hostname.  You will see the following the browsing bench interface.

From here you can : 1 - Press  START  to start the benchmark running.  2 - Select a folder on the server to save the results, and enter platform details for the log.  3 - Select the help panel to see a reference for all of the user interface options.  4 - Select  ENABLE ENGINEERING MODE  from the control panel to enable advanced options.

Note

On the server, you can monitor the progress of the current run of the benchmark as follows:

cd /var/www/html

watch ./progress.sh