GPG, the GNU Privacy Guard, can be used to digitally sign email, encrypt files. GPG is also used to sign RPM package. In this post, I’ll write a short instruction on how to generate a new GPG key on RHEL or CentOS 7. The command we need to generate the GPG key is gpg. This program is provided by gnupg2, and it should have aready been installed in most system. ...

Today I decided to upgrade the kernel (gentoo-sources) from 4.19.64 to 5.2.6 on my old ThinkPad X220. Apart from a few hiccups, everything went quite smoothly. I already have a blog post about upgrading the kernel on Gentoo, so I’ll skip many things here. First, ensure the sys-kernel/gentoo-sources-5.2.6 is installed: # emerge -av =sys-kernel/gentoo-sources-5.26 After the above package installed, we should be able to list it: ~ ❯❯❯ eselect kernel list Available kernel symlink targets: [1] linux-4.14.63-gentoo-r1 [2] linux-4.14.65-gentoo [3] linux-4.14.78-gentoo [4] linux-4.14.83-gentoo [5] linux-4.19.27-gentoo-r1 [6] linux-4.19.44-gentoo [7] linux-4.19.52-gentoo [8] linux-4.19.57-gentoo [9] linux-4.19.64-gentoo * [10] linux-5.2.6-gentoo Let’s select linux-5.2.6-gentoo as the version we’d like to switch to: ...

It looks like there are more device firmware available for Lenovo ThinkPad P1 (and X1 Extreme). Based on the list from Gnome Software Center, the available firmware are: Thunderbolt Firmware N2ETF12W System Firmware (Embedded Controller) 0.1.11 System Firmware (?) 0.1.23 It’s time to update all of them on my P1.

I run Fedora 30 on my ThinkPad P1 with i3 as a windows manager. Today, I switched to Plasma to test something out. While running plasma, I launched (Gnome) Software centre to check if there was any firmware update for this P1. To my surprise, there was one available: 1.21 released on April 29, 2019. Feel free to find out what’s new in this firmware at the following link: P1 (Type 20MD, 20ME) Laptop (ThinkPad). ...

In early March this year Sony released version 1.05 firmware for Sony A6500. Today, I found out that Sony has a newer version of the firmware available, 1.06. This time around, Sony didn’t clearly specify what’s changed in this version beside just one point: Improves the overall stability of the camera To update the firmware, you’ll need either a Windows or a Mac machine. Here is a link to download the firmware from Australian Sony website: ...