UPDATED 22/Dec/2022, ChangeLog: 22/Dec/2022: added the flag “-czstd” for defragmentation and compression. 20/Nov/2022: documented the new version of grub-btrfs and its new grub-btrfsd daemon; the configuration for Timeshift is much simpler, but you have to install another package: inotify-tools. 17/Nov/2022: documented that I could also create additional subvolumes and move existing contents from the running […]
I use VirtualBox a lot for testing purposes, mainly to experiment with a Linux distribution (to see whether it’s worthwhile to install it on bare metal) and to test procedures that might involve some complex (and maybe “dangerous”) operations. After you install VirtualBox Guest Additions, things like bidirectional copy-and-paste will work. Some distributions seem to […]
I had already posted about enabling hibernation in Linux, particularly in Ubuntu. Thanks to the script hibernator, the procedure is much more straightforward in Arch-based distros (including Manjaro and EndeavourOS). First of all, make sure you first install the package update-grub. The package hibernator is available from AUR, but currently, there’s a problem with the […]
UPDATED 02/Jan/2023, ChangeLog: 02/Jan/2023: documented that the new version of grub-btrfs is now an official package (you still have to install another package: inotify-tools); 02/Dec/2022: documented the new version of grub-btrfs and its new grub-btrfsd daemon; the configuration for Timeshift is much simpler, but you have to install another package: inotify-tools. After looking at the […]
I had previously written about mirroring Eclipse p2 repositories (see this blog tag), but I’ll show how to do that with Tycho and one of its plugins in this post. The goal is always the same: speed up my Maven/Tycho builds that depend on target platforms and insulate me from external servers. The source code […]
4th July, updated with BTRFS installations. There’s also a more recent and simpler version of this post. Besides Windows (which I rarely use) on my computers, I have a few Linux distributions. Grub 2 does a good job booting Windows and Linux, especially thanks to os-prober, in autodetecting other operating systems in other partitions of […]
After playing with VirtualBox (see my posts), I’ve decided to try also KVM (based on QEMU) and Virtual Machine Manager (virt-manager). The installation is straightforward. In Ubuntu systems:
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sudo apt install virt-manager bridge-utils |
In Arch-based systems:
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sudo pacman -S virt-manager qemu edk2-ovmf |
Then, you need to add your user to the corresponding group:
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sudo adduser ${USER} libvirt sudo adduser ${USER} libvirt-qemu |
Reboot, and you’re good to go. In this post, I’m […]
I’ve been using this laptop for some months now (see my other posts). In Windows, you can easily set the battery charge limit to 80% using the LG Gram control center. In Linux, I did not find any specific configuration in any system settings in any DE (not even in KDE Plasma, where, for some […]
That’s the third post on installing Linux on a USB drive! Remember that the idea is to have a USB drive that will work as a portable Linux operating system on any computer. In the first post, How to install Linux on a USB drive using Virtualbox, the USB drive with Linux installed could be […]
I want to share some of my experiences with KDE Plasma Themes in this post. These themes are pretty powerful, but, as it often happens with KDE and its configuration capabilities, it might not be immediately clear how to benefit from all its power and all its themes’ power. I’m assuming that you already enabled […]
I have already blogged about installing Linux on an external USB stick or drive (better if it’s an SSD) to make such an installation portable on any computer. In that old blog post, I was using VirtualBox to do the actual installation. I was relying on VirtualBox because when I had tried to install Linux […]
In this post, I’d like to share my experiences in setting a Google Online Account in GNOME and KDE. Actually, I have more than one Google account, and the procedures I show can be repeated for all your Google accounts. First, a disclaimer: I’ve always loved KDE and I’ve used that since version 3. Lately, […]
Say you publish a p2 repository for your Eclipse bundles and features. Typically your bundles and features will depend on something external (other Eclipse bundles and features). The users of your p2 repository will have to also use the p2 repositories of the dependencies of your software otherwise they won’t be able to install your […]
I had already described the process of publishing an Eclipse p2 composite update site: Publish an Eclipse p2 composite repository on Bintray Publish an Eclipse p2 repository on Sourceforge with rsync Well, now that Bintray is shutting down, and Sourceforge is quite slow in serving an Eclipse update site, I decided to publish my Eclipse […]
I recently started to port all my Java projects from Travis CI to GitHub Actions, since Travis CI changed its pricing model. (I’ll soon update also my book on TDD and Build Automation under that respect.) I’ve always used caching mechanisms during the builds in Travis CI, to speed up the builds: caching Maven dependencies, […]
I have never been able to make hibernation (suspend to disk) work on my laptops (Dell M3800 and Dell XPS 13 9370) on Ubuntu with systemd. The symptom was that running
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sudo systemctl hibernate |
was making the system shutdown, but then upon restart the system was not restored: it was just like booting the system from scratch. […]
In this tutorial I’d like to show how to publish a Maven Site to GitHub Pages. You can find several documents on the web about this subject, but I decided to publish one myself because the documents I found refer to a deprecated plugin (https://github.com/github/maven-plugins/tree/master/github-site-plugin) or show complicated settings, also when using the official Maven […]
In this tutorial I’m going to show how to install Linux on a USB drive using Virtualbox. I find this useful to test a LInux distribution. Note that using a live distribution only allows you a small testing experience, while installing Linux on a USB drive will give you the full experience (and if the […]
In this tutorial I’m going to show how to analyze multiple Eclipse plug-in projects with Sonarqube. In particular, I’m going to focus on peculiarities that have to be taken care of due to the standard way Sonarqube analyzes sources and to the structure of typical Eclipse plug-in projects (concerning tests and code coverage). The code […]
This post is based on my Dell M3800 with Linux Neon. KDE already does a good job with touchpad gestures (e.g., two fingers for scrolling, 3 finger tap for pasting, etc.) but it does not support 3 finger swype gestures like in MacOs, e.g., for displaying all the windows or for showing the desktop. Today […]