Installing Windows 10 in Mac OS High Sierra

This post tells you to install windows 10 operating system on a Mac Book Air (Early 2015) with the host OS of Mac OS High Sierra on a APFS Partition. 
I was struggling to install windows on to my MacBook Air (Early 2015). The recent update was Mac OS High Sierra

OS: Mac OS High Sierra
File System: APFS (Which is very tough to partition)

Installation of Windows 10 in Mac Book Air

BootCamp fails so many times during the partitioning of the system. It simple hangs and when I restart it again downloads the Windows Support software and the problem continues and find a solution for installing Windows 10 without using Boot Camp.

Step 1 :
Create a Partition in your Mac OS (Open Disk Utility -> Create a PArtition -> name it as BOOTCAMP -> Allocate some space (i used 85GB) and format it to Mac OS Journaled partition)

Step 2 :
Download and keep the Windows10.iso file (And keep the product key with you, if not sure then join Windows insider program where you can get the OS for free). Double Click over the iso file create a mount directory (ESD-ISO) in my case. 

Step 3: 
Insert a 16 GB or larger USB flash drive. Use the Disk Utility application to erase this drive and format it as FAT32 Partition and give a name to the partition (in my case it is WINDOWS10).

Step 4:
Use the Boot Camp Assistant to download the Window Support Software. Look for the "Action" pulldown on the Boot Camp Assistant menu bar.  See the figure given below. On my Mac, these files were downloaded to the ~/WindowsSupport directory and Select the Documents/ or Desktop/ folder to download the support files. Later these files need to be copied to the pen drive. 

BootCamp Support Software
BootCamp Support Software


Step 5: 
Your internal disk already has a 85GB "BOOTCAMP" partition. The space occupied by this partition will be used for installing Windows.

Step 6:

Mount the Windows iso file and copy the contents to the "WINDOWS!)" volume. In my case, the label "ESD-ISO" was used to identify the Windows iso. To perform the copy operation, you will need the enter the cp command from a Terminal application window. Below is the exact command I usually used. If necessary, make the appropriate modifications.

$] cp  -Rv /Volumes/ESD-ISO/ /Volumes/WINDOWS10

This will take some time to complete. You have to patient enough (for me it took 20 minutes)

Step 7: 

Once the Windows Support software is downloaded in the Document/ Folder, here is the command to copy that. 

cp -Rv Documents/WindowsSupport/ /Volumes/WINDOWS10

Once done, shutdown your mac (not Reboot). and power on with holding the Options Key. 
You will get two icons, 

Mac OS and EFI Boot. 

Select EFI Boot and follow the onscreen instructions. 

At one point you need to select the partition as you did earlier, 85GB of BOOTCAMP Space have to be deleted and format (the onscreen instruction of windows 10 installation might ask you). Select the 85GB partition, Delete it and then Click "New" and then proceed. 
Once windows is installed, it restarts automatically twice during the installation and then done. 

Step 8:
Some peoples may get an error while booting EFI Boot. Please follow the instruction followed in this page. 



Step 9: 
Once booting in to windows, the windows support from your pen drive automatically pops up and ask you to install. click next wherever applicable and after a while, a complete installation of windows 10 is done. 

Comment below if you get any errors.
Subscribe to my youtube channel as given below for more videos related to Embedded Systems, Open Source software, LMS, Networks, Internet of Things, etc. 


By T S Pradeep Kumar

VattaKottai Fort

Vattakottai Fort is situated on route to Nagercoil. Its name derived because it is round in shape. Vattam in tamil is Round. In 1809 the britishers demolished the Travancore lines, except this fort. There is a water pond in the centre of this fort that helps for water supply to the Army force troops. Beliefs that this fort was under the control of the Pandyas King. This fort is not to be missed.

Check the virtual tour of this fort


Vattakottai - Virtual Tour

VattaKottai Fort
VattaKottai Fort

VattaKottai Fort
VattaKottai Fort

VattaKottai Fort
VattaKottai Fort

VattaKottai Fort
VattaKottai Fort

VattaKottai Fort
VattaKottai Fort

VattaKottai Fort
VattaKottai Fort

VattaKottai Fort
VattaKottai Fort

VattaKottai Fort
VattaKottai Fort

VattaKottai Fort
VattaKottai Fort

VattaKottai Fort
VattaKottai Fort

VattaKottai Fort
VattaKottai Fort

VattaKottai Fort
VattaKottai Fort


By T S Pradeep Kumar

Padmanabhapuram Palace

Padmanabhapuram Palace is situated near Nagercoil and Kanyakumari. 

Total Time: takes minimum 1 hour to see the entire palace.

There is a museum too.

They are allowing you to take videos, only photos are allowed to take inside the palace.

See the video give below

Check some of the pics

Padmanabhapuram Palace
Padmanabhapuram Palace 

Padmanabhapuram Palace
Outside View of Padmanabhapuram Palace 

Padmanabhapuram Palace
Padmanabhapuram Palace 

Padmanabhapuram Palace
Padmanabhapuram Palace 

Padmanabhapuram Palace
Padmanabhapuram Palace 

Padmanabhapuram Palace
Padmanabhapuram Palace 

Padmanabhapuram Palace
Padmanabhapuram Palace 

Padmanabhapuram Palace
Padmanabhapuram Palace 

Padmanabhapuram Palace
Padmanabhapuram Palace 

Padmanabhapuram Palace
Padmanabhapuram Palace 

Padmanabhapuram Palace
Padmanabhapuram Palace 

Padmanabhapuram Palace
Padmanabhapuram Palace 

Padmanabhapuram Palace
Padmanabhapuram Palace 

Padmanabhapuram Palace
Padmanabhapuram Palace 

By T S Pradeep Kumar

Dakshineshwar Temple - Kolkata

One of the beautiful places in Kolkata in the Dakshineswar temple.

Total time to visit the temple: 30 minutes (Depends on the queue)

You have to surrender everything except the Wallet/purse,...

No camera, no mobile phones..

Also, if you want a Virtual tour for Dakshineshwar Temple, please follow the video


See some of the pics of the temple

Dakshineshwar Temple
Dakshineshwar Temple

Dakshineshwar Temple
Dakshineshwar Temple

Dakshineshwar Temple
Dakshineshwar Temple

Dakshineshwar Temple
Dakshineshwar Temple

Dakshineshwar Temple
Dakshineshwar Temple

Dakshineshwar Temple
Dakshineshwar Temple

By T S Pradeep Kumar

Belur Math - Kolkata

Its a boat journey from Dakshineshwar to Belur Math. One of the nicest place in Kolkata. So scenic. Please look at the video shown below for a Virtual tour from Dakshineshwar temple to Belur Math.



Also look at some pictures shown below
On the way to Belur Math

On the way to Belur Math

On the way to Belur Math

Dakshineshwar Kali Temple

On the way to Belur Math

On the way to Belur Math

Belur Math

On the way to Belur Math

Belur Math
Belur Math

Belur Math
Belur Math

Belur Math
Belur Math

By T S Pradeep Kumar

MOODLE Installation

This post shows you the installation of MOODLE in Ubuntu 18.04 LTS (Long Term Support). A complete video is given below for installation of moodle.

MOODLE is LMS (Learning Management System)

MOODLE can be installed on a

  • Small Desktop (PC) 
  • Tower Server
  • Blade Server 
  • Private Cloud
  • Public or Hybrid Cloud 


Linux is powerful for moodle.

Two software are needed.
LAMP Server (Linux Apache MySQL Php)
Bitnami LAMP STACK - I already downloaded
Visit http://www.bitnami.org to download

MOODLE software - Prefer Always the latest stable version. I already downloaded.
Visit. http://www.moodle.org

Port number 80 is used

To which port number, 80 to be used (for this i need to be a super user or administator in this machine).

Installed in a folder called /opt (this folder is accessible only to super users)
/opt

Copy the files to /opt

$] sudo cp bitnami-lampstack-7.1.17-0-linux-x64-installer.run /opt/
$] cd /opt/
$] sudo chmod 755 bitnami-lampstack-7.1.17-0-linux-x64-installer.run
To check the file permissions,
$] ls -l

BITNAMI LAMP Stack installed successfully.
To start using a terminal, here is the command

MOODLE installation

There is afolder called
/opt/lampstxxxx/apache2/htdocs/moodle/

$] cd /opt/lamp*/apache2/htdocs
$] sudo tar zxvf moodle-3.5.tgz
$] cd moodle/


https://www.youtube.com/tspradeepkumar




By T S Pradeep Kumar

Review on Huami Amazfit BIP



By T S Pradeep Kumar

Frequent Wifi Disconnection Problem in Ubuntu

At times, when you are working on your computer, your wifi suddenly disconnects and everyone in your network also disconnect themselves with the wifi.

This is a peculiar problem of the today's OS. Of course, its not a bug i think. In windows 10, this problem still persists and there are so many workaround, yet to find the real answer for that.

But for Ubuntu or Debian or Linux Mint. There is a small workaround. Please follow the steps.

Open a terminal and type the following commands

$] iwconfig

For the above command you get this screen. Please see the black rounded information. Make a note of it
Power Management
Power Management
In my case, I already switched off the power management to off, but your case might be ON. So to make it permanently OFF, do the following steps.

$]  sudo gedit /etc/NetworkManager/conf.d/default-wifi-powersave-on.conf

Open the above file, there will be only two lines as given below
[connection]
wifi.powersave = 3

Change the 3 to 2 in the second line and Save. After saving, reboot the machine.

You are done!!!

In case, if you want to do temporarily (Every time the machine is started, you need to issue the following command)

$ sudo iwconfig wlp2s0 power off

Your wifi interface device might be different, please use your name. I have shown it in RED color

By T S Pradeep Kumar

Unboxing Huami Amazfit

This post helps to know the features of Huami Amazfit BIP, a Smart watch from the Xiaomi Sister concern Huami. Its a perfect watch for those who do regular exercise everyday.
  
Features:
  • Easily linked with Apple and Android Phones/Tablets
  • Gives notifications for calls, messages, apps
  • display time, notifications like number of walked steps, calories burnt and km walked
  • so many activities from cycling, running, walking, shuttle badminton, etc.
  • It has DND feature, where you can disable/enable the DND (Do not Disturb) Option
  • It has heart rate monitor
  • Watch face can be changed with various images
  • 45 days battery life (but reduced lifetime for customisation)
  • Gives you warning for Sitting for longer duration
  • and there are so many benefits.
  • Its cost $99 in the world market and in India it costs around 7K to 8K
  • App to connect: Mi Fit (iOS and Android) through bluetooth
  • IP68 Water proof with GPS

Technical Specifications

2.5D Corning Gorilla Glass screen
Press button to operate
Lithium-ion polymer battery thats last for 45 days in single recharge
Battery: 190mAh
Polycarbonate case material
Silicone plastic band
OS: Android,IOS
Product size (L x W x H): 19.50 x 3.50 x 0.80 cm / 7.68 x 1.38 x 0.31″
Package size (L x W x H): 5.00 x 5.00 x 5.00 cm / 1.97 x 1.97 x 1.97″
Product weight: 0.0320 kg
Package Contents 1 x Smartwatch 1 x Charging Cable

Please see the video for unboxing Huami Amazfit BIP

 
Huami Amazfit 

Please subscribe to my youtube channel

find command in linux

In Linux, finding a file through a command line (SHELL) is faster than on its GUI. But there is a check.

find is the command to find the files in Linux.

$] find /place/to/search -name filename.extn
$] find /place/to/search -name "*.txt"

If you want to find the files between two dates, here is the command 

$] find /place/to/search -newermt 20160701 \! -newermt 20170731
the above command find the files between 1st July 2016 to 31st July 2017.


By T S Pradeep Kumar

How to make boot entry in CentOS for Windows 10

Whenever you try installing Cent OS, after the installation of CentOS, the windows 10  or windows 8 might have gone missing from the boot table entry.
This is due to one of the reasons
  • Since Windows 10 or 8 runs with NTFS filesystem which could not be understandable by Cent OS 
  • any other booting issues like UEFI or GPT partition issues.
Any how, one can try the first method to get rid of the NTFS filesystem issue.

After installing CEntOS, get it in to the Cent OS and open the terminal and give the command one by one

$] sudo yum install epel-release
or
$] sudo yum install epel-release.noarch

$] sudo yum install ntfs-3g 

Depending on the speed of the internet, the above command might take some time to install.

$] sudo grub2-mkconfig > /dev/null 

this command will read the windows 10 or 8 partition. Thats it. Reboot the machine and you can boot in to Windows 10.

Here is the image
CentOS

  and final step is here, execute these commands
$] sudo grub2-mkconfig -o /boot/grub2/grub.cfg

If EFI Mode is enabled, then issue this command

$]  sudo grub2-mkconfig -o /boot/efi/EFI/centos/grub.cfg

Technology Tools for Teachers and Educators


The Mediocre teacher tells,
The good teacher explains,
The superior teacher demonstrates,
the great teacher inspires...... 

William Arthur Ward
 

If you are a teacher or a professor, you cannot survive with out technology and impress or inspire students of this generation. If you want to become a great teacher, here are some tools that you can use for your teaching and learning. The tools are characterised based on the categories. One or more of the tools can be used within or outside the classroom.

Technology Tools
Technology Tools for Teachers
Presentation Tools

  • MS Office (Power Point, Word and Excel)
  • Libre Office (Its Free and open source)
  • WPS Office (Its free, have support of all the MS Office files)
  • Prezi (Its a tool for infographics and animations within presentation)
  • MS Sway (This is from Microsoft and its a graphic content generation that can make the students learn the subject in a greater depth
  • Keynote (for Apple machines). Others also can use through www.icloud.com to generate presentation using keynote.


Social Media

  • Facebook Groups
  • Google Groups
  • Facebook
  • Google+
  • Edmodo


Learning and Content Management Systems
  • MOODLE (Its complete LMS that have assignments, projects, quizzes, wiki, etc.). If you are individual cannot afford, you may use www.moodlecloud.com
  • Wordpress (For Blogging)
  • Drupal (Its for designing a portal for a list of subjects)
  • Joomla(Its also for designing a portal with industry standards)


Google Tools
Google itself have suggested various tools for Education and Learning. You can use these tools and get ready.
  • Blogger (its a blogging platform, you can record your classmates and other information in a blog, its there infinite, you can refer back to these contents even after 20+ years)
  • Youtube (Video Lectures made learning fast)
  • Google Apps for education (If you are a school or a college, you may request google to provide the tools for free)


Screen Recording and Video Recording

Debut Video Capture (You can record a video lecture when you are conducting a class and upload it to youtube or any other video hosting sites.) This software is completely free for educational purpose. just 2MB of size, it do wonders
  • Camstudio (This also free to use)
  • Jing (Its also free, you can take a screenshot image and screenshot video for a duration of 5 minutes and can record in SWF format). Its very handy to use.
  • Camtasia (Its a software but with paid subscription). Too costly to use this software.
  • Simple Screen Recorder (this is for Linux OS and comes free with open source)
  • VokoScreen (this is also linux, Its also free and open source).
  • QuickTime Player for Mac OS Machines.



Virtual Classroom 

Assume you want to handle a lecture outside the classroom you need a software that allows you to talk and present to your students. Here is the list
  • Skype (only with limited users)
  • Google Hangouts (maximum of 15 students )
  • Apache Openmeeting (You need to configure this to work for group of students). Its also free to use.
  • BigBlueButton with Greenlights (This also need to configured for use). But its free to use


Animation and Cartoon Creation

Sometimes we can create content with animation and cartoons. if you need to use it in your classroom lecture, here are some tools. They are free for limited use.
  • Toondoo.com (Its a site to create cartoon using your own characters and world recognised characters)
  • goanimate.com (This is to create animated videos with your own dialogues)
  • MIT Scratch (This is free and open source, but everything is online to create graphical content.)


Mobile Apps based 

A teacher can create his or her own mobile applications also in teaching. Without the technicalities, one can easily create mobile apps for android and iOS. Here are the tools to create such apps
  • Android Studio for android apps.
  • MIT App Inventor 2 for Android Apps.
  • Xcode for iOS apps.
  • Apple Swift for creating iOS apps