How to de-snap Xubuntu 22.10

Snap uses loopback devices for applications it installs. These can cause a device or resource busy error if loopback device is also used for encrypted container files due to conflict. To cut a long story short, I decided to completely de-snap Xubuntu. This involves complete removal of snap. Below are the steps done in a … Continue reading How to de-snap Xubuntu 22.10 →

How to create and use LUKS encrypted partition in Linux

It is easy to create a LUKS container and a partition within it, using the GUI on Linux. The application that enables this easily is the gnome-disk-utility. However, if you want to use the command line to set up a LUKS encrypted device, read on. Exercise appropriate caution before doing any of the below with … Continue reading How to create and use LUKS encrypted partition in Linux →

How to encrypt swap partition on Ubuntu 14.04 LTS

If you installed Ubuntu 14.04 afresh, and selected home folder encryption, you will also get an encrypted swap partition. However, when the computer boots, you get the following error message: the disk drive for /dev/mapper/cryptswap1 is not ready yet or not present. Note that you need to have a proper data backup and make sure … Continue reading How to encrypt swap partition on Ubuntu 14.04 LTS →

How to check if swap is encrypted in Ubuntu

Start up a terminal window and then enter the commands as shown in italics below. The following command will tell you if your swap is encrypted in Ubuntu 12.04. $ swapon --summary <enter> Filename Type Size Used Priority /dev/mapper/cryptswap1 partition 3904508 0 -1 Above indicates swap is encrypted. If it returned nothing except the heading, … Continue reading How to check if swap is encrypted in Ubuntu →

Encrypting a container file using dm-crypt / cryptsetup instead of TrueCrypt

Encrypting a container file using dm-crypt / cryptsetup instead of TrueCrypt There are many users who use TrueCrypt (http://www.truecrypt.org) to encrypt our data backups for added security. To us, TrueCrypt was one of the best tools available. However, with the latest update on the TrueCrypt website, the developers have stated that those using TrueCrypt should … Continue reading Encrypting a container file using dm-crypt / cryptsetup instead of TrueCrypt →