Tips

As the title says when I tried to generate grub on a machine running Fedora 31 using UEFI, I was presented with this error: # grub2-mkconfig -o /boot/efi/EFI/fedora/grub.cfg Generating grub configuration file ... grub2-editenv: error: environment block too small. ... I didn’t know what had caused it. However, it seemed like an easy fix was to remove the grubenv file. # rm /boot/efi/EFI/fedora/grubenv # grub-editenv /boot/efi/EFI/fedora/grubenv create # grub2-mkconfig -o /boot/efi/EFI/fedora/grub.cfg Generating grub configuration file ... Adding boot menu entry for EFI firmware configuration done By the way, as a word of caution, if you have a similar problem, please don’t just copy and paste the command above and run it. It may make your sitution worse. ...

As the title says, I cannot use feh to open a PNG image. feh on this machine can’t open a JPG image either. Let’s see what’s wrong. I should notice that this problem occured on a machine running Gentoo. :D First, let’s check if feh is installed using my favorite tool called eix: ~ ❯❯❯ eix feh [I] media-gfx/feh Available versions: 3.1.1 ~3.1.3 ~3.2 ~3.2.1^t {curl debug exif test xinerama} Installed versions: 3.1.1(11:11:04 PM 04/14/2019)(-curl -debug -exif -test -xinerama) Homepage: https://feh.finalrewind.org/ Description: A fast, lightweight imageviewer using imlib2 According to the above information, feh:3.1.1 is already installed. It also mentions that feh use imlib2 library. ...

I run hugo hot off the development branch. Periodically I need to checkout the code and re-build it. I find myself having to google to do this almost all the time. So today, I’m gonna document this here so I can quickly look it up next time I want to update hugo. The hugo code has already be cloned to the following location in my desktop: mkdir -p $HOME/dev/go cd $HOME/dev/go git clone https://github.com/gohugoio/hugo.git Here are the commands to update the hugo code, rebuild and reinstall it: ...

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.