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

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 restart wifi after Suspend/Resume Ubuntu Linux

Ubuntu Linux installed on a Lenovo laptop randomly disables wireless networks altogether. Subsequently, it does not show any wireless networks too in Network Manager.

To resolve this issue, did the following:

$ sudo lshw -class network <enter>

Below is the result.

Notice the logical name wlp2s0b1 and the driver brcmsmac

*-network description: . . . → Read More: How to restart wifi after Suspend/Resume Ubuntu Linux

Install XFCE desktop and remove Gnome desktop on Ubuntu 18.10

To install Xubuntu after you have install Ubuntu 18.10 with the default Gnome desktop, make sure to take a backup of your data and then open a terminal window and run the following commands:

$ sudo apt-get install xubuntu-desktop <enter>$ sudo apt-get purge whoopsie orage gigolo catfish snap* parole* <enter>$ sudo . . . → Read More: Install XFCE desktop and remove Gnome desktop on Ubuntu 18.10

Speed up application startup time in Ubuntu

If you find your Linux computer is slow in starting up applications, you can install the preload package. It makes a small, discernible difference when launching applications.

To install, open a terminal window and run the following command:

$ sudo apt-get install preload <enter>

. . . → Read More: Speed up application startup time in Ubuntu

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

How to restore TWRP recovery after encrypting internal storage on LineageOS 14.1 on Motorola G 2014 (titan)

I installed LineageOS 14.1 on an old Motorola G 2nd Generation (2014) android phone, also known as titan. All went well and it worked like a charm.

I wanted to encrypt the internal storage and accordingly, did so from the Settings -> Security option on the phone. It worked well and said the phone was . . . → Read More: How to restore TWRP recovery after encrypting internal storage on LineageOS 14.1 on Motorola G 2014 (titan)

Superb applications for graphics or photo processing darktable and rawtherapee

If you need to process images, use darktable and rawtherapee

To install in Xubuntu or Ubuntu, open a terminal window and enter the following commands: $ sudo apt-get install darktable rawtherapee <enter>

Once you are done, go ahead and process photographs like a professional. Need I say that this is a good combination to substitute . . . → Read More: Superb applications for graphics or photo processing darktable and rawtherapee

How to fix Unknown media type in type all/all and more due to kde.xml in Linux

If you get the below errors and are not using the KDE desktop environment, it could be that you installed some KDE program like Okular and then removed it, as a result it caused the mime types to give following errors:

Unknown media type in type ‘all/all’ Unknown media type in type ‘all/allfiles’ Unknown media . . . → Read More: How to fix Unknown media type in type all/all and more due to kde.xml in Linux

How to get back missing Dropbox icon in the Ubuntu panel

I noticed that my dropbox icon went missing due to a bug in Dropbox. To restore it, I came across this post, and at the command line, had to issue following commands after opening a terminal window:

First, install libappindicator1 once by: $ sudo apt-get install libappindicator1 <enter>

Now, each time, the below commands need . . . → Read More: How to get back missing Dropbox icon in the Ubuntu panel

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