Error installing virtualbox downloaded from the virtualbox site

Downloaded virtual box .deb file for Ubuntu installation. Received error about unsandboxed installation.

The solution to the error is to provide the _apt user the rights to write into the folder as shown below:

$ sudo chown -Rv _apt:root /var/cache/apt/archives/partial/ <enter> $ sudo chmod -Rv 700 /var/cache/apt/archives/partial/ <enter>

Install Dropbox and get the indicator in the panel in Xubuntu 18.04 LTS

Unfortunately, upon installation of Dropbox, the indicator does not show the menu it normally does as on the Gnome desktop in Ubuntu 18.04 LTS.

To overcome this issue, open a terminal window and enter:

$ dbus-launch dropbox start -i& <enter>

Upon doing so, Dropbox starts and the indicator icon upon clicking will show the Dropbox . . . → Read More: Install Dropbox and get the indicator in the panel in Xubuntu 18.04 LTS

How to add user with encrypted home folder in Xubuntu 18.04 LTS

After a long while, upgraded from Xubuntu 16.04 LTS to Xubuntu 18.04 LTS and was in for a surprise. No encrypted home folder. Support for this was dropped as ecryptfs-utils was no more maintained by it’s maintainer.

However, fret not. Encrypted home folders can still be created as below. Make sure you take a backup . . . → Read More: How to add user with encrypted home folder in Xubuntu 18.04 LTS

LibreOffice 6 old Win 95 style icons and look and feel. How to fix.

Default installation of LibreOffice on Lubuntu 18.04 LTS gives a look and feel of the Windows 95 menus. To get rid of this, install the package below after opening a terminal window:

$ sudo apt-get install libreoffice-gtk3 <enter>

Not able to update Gnucash Stocks and Currency Quotes since late 2017 on Ubuntu 16.04 LTS

If you use GnuCash on Ubuntu 16.04 LTS, then this will apply to you.

Over last few months, I have not been able to get stock quotes updates for stocks on the NYSE, NASDAQ, Yahoo Finance. The reason is that Yahoo Finance Finance::Quotes module does not work anymore to fetch the quotes and therefore, to . . . → Read More: Not able to update Gnucash Stocks and Currency Quotes since late 2017 on Ubuntu 16.04 LTS

Recover encrypted ecryptfs home folder from encrypted dm-crypt luks disk volume

Whew… saved by the skin of teeth.

The grub2 bootloader of my computer got corrupt. I was not able to boot into the computer and all was lost. For security reasons, I set up LVM with full disk encryption. Thereafter, each user’s home folder was further encrypted with ecryptfs (the default you get when you . . . → Read More: Recover encrypted ecryptfs home folder from encrypted dm-crypt luks disk volume

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 excessive CPU usage by process tumblerd on XFCE desktop in Linux

Noticed that each time I added or downloaded a file, it resulted in excessive use of the CPU. This happens on XFCE desktop in Linux. Looking up the process list, found that tumblerd was utilizing up to 86% of the CPU and leading all other applications and processes to be very slow. Tumbler is used . . . → Read More: How to fix excessive CPU usage by process tumblerd on XFCE desktop in Linux

apt-get dist-upgrade freezes at reading package lists due to appstreamcli in Ubuntu

Today, when I attempted to update the Ubuntu system to install the latest patches, the system hanged infinitely at the sudo apt-get update command. This appears to be a bug, but nonetheless, system patching is our priority and this is the workaround, till it gets fixed. To type the commands below, open a linux terminal . . . → Read More: apt-get dist-upgrade freezes at reading package lists due to appstreamcli in Ubuntu

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