How to quickly create a 150 GB file on Ubuntu

There are various methods to create a 150 GB file on Linux, but the fastest way to do so is to use fallocate. Open a terminal window and enter the command below:

$ fallocate 150G filename <enter>

The above command creates a 150 gb file named filename.

. . . → Read More: How to quickly create a 150 GB file on Ubuntu

Wireless Adapter not detected in Linux Mint 19.1 on Dell Inspiron 5580

On a Dell Inspiron 5580, the wireless adapter is of Intel. The same is not detected when installing Linux Mint 19.1 the first time. This is because of the kernel not being updated.

Once Linux Mint 19.1 is installed, the later kernel 4.15.0-52 installed upon update, makes the wireless adapter work.

. . . → Read More: Wireless Adapter not detected in Linux Mint 19.1 on Dell Inspiron 5580

System scaling in Linux on 1920×1080 display (HiDPI)

Note system scaling works out of box with Cinnamon desktop. Open a terminal window and install it with:

$ sudo apt-get install cinnamon-desktop-environment <enter>

To do system scaling in the Gnome Desktop Environment, install the gnome-tweak tool. To do so, open a terminal window and enter the command as below:

. . . → Read More: System scaling in Linux on 1920×1080 display (HiDPI)

How to find out time taken in Linux by processes when starting the computer

To identify which system processes take how much time when booting your Linux system, open a terminal window, at type the following command:

$ sudo systemd-analyze blame <enter>

How to debloat, remove crapware from Xiaomi Redmi Note 5 Pro smartphone

Never look a gift horse in the mouth..

If you are one of those who is a technology connoisseur and love to compare specifications of smart phones before making a purchase decision, you need to be aware that the Xiaomi Redmi Note 5 Pro with 6 GB Internal RAM, best display and camera is . . . → Read More: How to debloat, remove crapware from Xiaomi Redmi Note 5 Pro smartphone

How to de-brick or unbrick or recover TP-Link WDR-4300 wireless router

Due to a wrong update of firmware, I bricked the TP-Link WDR 4300 wireless router I had. It was unused for a considerable period of time assuming that it had died due to hardware fault, with no hope of being resuscitated.

Finally, got some time to investigate it further and attempted to recover or . . . → Read More: How to de-brick or unbrick or recover TP-Link WDR-4300 wireless router

Remove a broken package on Ubuntu

To remove a broken package, open a terminal window and enter following command:

$ sudo dpkg –remove package-name <enter>

where package-name is the broken package to be removed.

How to prevent apps from automatically closing on Redmi Note 5 Pro MIUI 10

Open Recents by clicking the button in the nav bar.Swipe the open app downwards and you will see a lock icon on right top side of the app. This is now locked and it will not be removed when the list of recent apps is cleared.

Helped to keep iBlue Blue Light Filter app . . . → Read More: How to prevent apps from automatically closing on Redmi Note 5 Pro MIUI 10

Error when opening a LUKS encrypted container file /dev/loop0 Device or resource is busy on Ubuntu 18.10 Gnome Desktop

When you enter the command below in a terminal window:

$ sudo /sbin/losetup /dev/loop0 /home/user1/folder1/containerdatafile <enter>

Device error or resource busy error message appears and the device is not setup.

The reason is that /dev/loop0 is taken by snap.

To overcome the error, change /dev/loop0 to something else like /dev/loop35

Or, if you do not . . . → Read More: Error when opening a LUKS encrypted container file /dev/loop0 Device or resource is busy on Ubuntu 18.10 Gnome Desktop

Synchronize Google Calendar with Thunderbird Lightning

To synchronize Google Calendar with Thunderbird Lightning, open Thunderbird and install an add-on named “Provider for Google Calendar” by Philipp Kewisch. Follow the instructions after the install to grant permissions to your Google Calendar and synchronize.

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