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how to import ova file into virtualbox + Screenshots

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This is a guide on how to import an ova file into virtualbox with screenshots.

In Oracle virtualbox, click on “File” and then click on “Import Appliance“.

Then click on the “folder” icon as shown below:

Select the .ova file you need to import and then click on “Open“.

Click on “Next“:

Now, you can configure the options, such as change the virtual machine’s name which is optional as show below:

You can also change the location of your virtual machine’s hard disk if needed by changing the location field.

Now, you can go ahead and start you VM.

Wohoo! You have successfully imported your ova file into virtualbox.

If this article helped you, do share this by clicking on the share buttons you see in this page. If you have any queries feel free to leave a comment below and I will get back to you! Happy Virtualization!

Source: Link

How to install apache from source in Centos 6.7

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This is a simple guide on how to configure Apache from source in Centos 6.7 + installing APR, APR-UTIL and PCRE to make it work.

Step 1. Install gcc:

Open up your terminal window and type the following command:

yum install gcc gcc-c++

Now, change to following directory:

cd /usr/src/

Step 2: Download and configure APR :

To download the APR file, use the below command:

wget http://a.mbbsindia.com//apr/apr-1.5.2.tar.gz

Now extract the downloaded file:

tar -zxvf apr-1.5.2.tar.gz

Change to the extracted folder and run the following commands to configure apr:

cd apr-1.5.2
./configure –prefix=/usr/src/apr
make
make install

Step 3. Download and configure apr-utils:

Change to following /usr/src/ directory:

cd /usr/src/

To download the APR-UTIL file, use the below command:

wget http://mirror.fibergrid.in/apache//apr/apr-util-1.5.4.tar.gz

To extract file, change to extracted folder and to configure apr, run the following commands:

tar -zxvf apr-util-1.5.4.tar.gz
cd apr-util-1.5.4
./configure –prefix=/usr/src/apr-util –with-apr=/usr/src/apr/
make
make install

Step 4. Download and config PCRE:

Change to /usr/src/ directory:

cd /usr/src/

To download pcre2-10.21.tar.gz type the following your terminal:

wget ftp://ftp.csx.cam.ac.uk/pub/software/programming/pcre/pcre2-10.21.tar.gz

To extract file, change to extracted folder and to configure pcre2-10.21, run the following commands:

tar -zxvf pcre2-10.21.tar.gz
cd pcre2-10.21
./configure –prefix=/usr/src/pcre2
make
make install

Step 5. Download Apache / httpd:

Now, change to following directory:

cd /usr/src/

To download httpd tar ball type the following your terminal:

wget http://a.mbbsindia.com//httpd/httpd-2.4.18.tar.gz

To extract file, change to extracted folder and to configure httpd, run the following commands:

tar -zxvf httpd-2.4.18.tar.gz
cd httpd-2.4.18
./configure –prefix=/usr/local/apache2 –with-apr=/usr/src/apr –with-apr-util=/usr/src/apr-util –with-pcre=/usr/src/pcre2/bin/pcre2-config
make
make install

Step 6. Start and test your apache server

service httpd start
httpd -v

You can also open your browser and go to:

http://localhost/

And it should give you the Apache Welcome page.

And Voila! You have successfully configured apache from source. Hope this helps!

[DISCLAIMER: This guide is strictly for the purpose of learning how to configure apache from source for beginners. This should not to be used in a real production server as no security measures has been discussed or implemented in this tutorial.]

If you liked this article, do leave a comment below. You can also share this article by clicking on the social media buttons below.

Source: Apache, Troubleshooting source: APR troubleshooting

Most powerful Ubuntu phone: Meizu PRO 5 Ubuntu Edition

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The world’s most powerful Ubuntu phone “Meizu PRO 5 Ubuntu Edition” has just been launched with some serious hardware. Take a look at the specs below:

8 core Exynos 7420 processor and MALI T760 GPU.
32GB of internal memory.
3GB LPDDR4 RAM.
5.7 inch 1080p screen with a re-tuned delta cool color AMOLED screen.
Corning Gorilla Glass 3 with improved damage resistance and toughness.
21.16 megapixel rear-facing camera with PDAF phase laser-assisted focusing and LARGAN 6P lenses for improved resolution.
5 megapixel front-facing camera.
Hi-Fi Sound.
Slots for two micro-SIM cards.

meizu Pro 5 ubuntu phone picture — **Image: Meizu Pro 5 Ubuntu Edition [Credits: Ubuntu.com]**

This device as you all know is joint initiative of Canonical and Meizu and have had successful launches of Ubuntu phones in the past. The launch of the device will definitely conquer hearts of all Linux lovers (myself included).

The company states that the phone is running the latest code and is capable of providing a desktop experience (which basically allows you to connect your phone to a monitor and use it as a normal desktop). This phone weights about 168 grams with dimensions of 156.7x78x7.5 mm. Also, the Meizu Pro 5 ubuntu phone does not support MHL output. It does come with applications such as Instagram, Twitter, Telegram and Soundcloud.

The phone is available for pre-order during the Mobile Congress 2016 event.

What do I think of this?:

Dayyymmm!! I need me one of those!!!

If you are an Android or Apple user, would you switch to the Ubuntu phone? Feel free to leave a comment below!

Do share this article on Facebook, Twitter, Google+ by clicking on share buttons in this page. And don’t forget to subscribe to get latest updates! Stay Tuned! 🙂

Source: Ubuntu, Image Source & Credits: Ubuntu Phones

How To fix “This kernel requires an x86-64 CPU, but only detected an i686 CPU. This processor is unsupported in RHEL 7.” when booting from VirtualBox

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Error: This kernel requires an x86-64 CPU, but only detected an i686 CPU.
This processor is unsupported in RHEL 7.

centos-boot-error

[Note: This tutorial is under the assumption that your physical CPU is 64-bit and your installed host OS is 64-bit and will only work in these circumstances.]

Cause:

This mainly happens due two reasons:

If you have a 64-bit OS installed but the VirtualBox OS type is accidentally changed/set to 32-bit after installation.
If Vt-X (Virtualization) is disabled in the BIOS. (This can happen if you reset your BIOS to default settings which may have disabled Vt-X bit).

Solution:

Step 1: Right Click on the Centos/RHEL OS which is giving you the error and then click on “Settings“.

virtualbox settings

Step 2: In General Tab, check the OS Type and see if you are able to change to “Redhat 64-bit” and follow step 4.

change os type

Step 3: If you are only able to see 32-bit entries in the OS type list and your physical CPU supports 64-bit, this means that Vt-X is disabled in your BIOS. So, restart your PC and boot into your BIOS, enable Vt-X.

For reference, I have a Asus Maximus VII Ranger Motherboard and here is how I enabled Vt-X in my BIOS.

enable vt-x

[Optional: If your CPU supports Vt-d, enable that too, it will improve functionality and performance of your Virtual Machine. Some CPUs will not have the Vt-d function, if you dont have it then you can ignore it]

optional step to enabled vt-d

Step 4: Restart your computer and boot back your CentOS/RHEL VM and it should come right up.

centos boot error fixed

Hope this fixed the issue. If this tutorial helped you,do leave a thumbs up a comment below. Hope this helps! 🙂

If you have any sort of queries, just leave a comment below and will get back to you. Don’t forget to follow my blog to get future updates! 😀

Regards,
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