Jin Y. Cho on Jin Y.C

About

Fri, 30 Sep 2022 05:33:22 +0100

I’m Jin, a technical writer and trainer with 5+ years experience developing:

Documentation strategy
Knowledge bases
User and software guides
Process documentation

Contact: redzhift@tuta.io

User guides

How to maintain your Endeavour OS system in the Linux CLI.

Overview

Wed, 24 Jun 2026 12:30:11 -0700

This is a guide to installing Linux Mint on your computer using a Ventoy liveboot USB.

info

Linux Mint is a free, open-source operating system designed to work “out of the box.” It is a popular alternative for those accustomed to a traditional desktop OS like Windows, offering a simple transition and access to the apps that most people need.

Initial Prep

Tue, 23 Jun 2026 15:58:58 -0700

It is recommended to have:

USB drive (3.0, at least 8 GB)
External HDD or SSD device
PC specs (RAM size, GPU model)

First, back up your files onto an external HDD/SSD. This setup lets you access and recover the files separately if needed.

Download files

You can download from any mirror listed on the download sites.

.iso downloads may take several minutes. Make sure that the download finishes completely before attempting verification.

Verify file integrity

Tue, 23 Jun 2026 16:10:36 -0700

report

You MUST pass this verification step before installation. Otherwise, you run a significant risk of bricking your computer and/or compromising its security.

Before using the installation file (.iso), we need to make sure that it is safe to use. A safe file is:

From a verified source
Is not corrupted
Has not been tampered with

This verification process is done by comparing checksums.

info

Checksums, or hashes, are the digital fingerprint of a file. Any modification or inconsistency creates a different output than the expected hash.

Check installation `.iso` checksum

Open the emn178 SHA256 checksum tool.

Create Ventoy Liveboot

Tue, 23 Jun 2026 16:10:55 -0700

Overview

A liveboot USB contains a full operating system, which lets you use ’live session’ without installing the OS first.

A live session is required to safely install Linux Mint.

check_circle

In this guide, Ventoy software is used for a more streamlined liveboot experience. This tools lets you select from multiple boot options, so you can install multiple Linux distros to try out on one USB stick.

Install from live session

Tue, 23 Jun 2026 16:11:03 -0700

Overview

With your liveboot USB set up, you can prepare to boot into a live session of Linux Mint.

First, you need to set your computer system to recognize that it should boot from a different device at startup (your Ventoy device). This option is changed in your computer’s BIOS MENU.

Disable secure boot in `BIOS MENU`

Reboot your computer with the Ventoy USB still inserted.

Change default kernel

Mon, 08 Jun 2026 16:58:36 -0700

info

Note: This guide is for systems using the default systemd-boot UEFI boot manager in Endeavour OS.

Your system can have multiple kernels (or versions) of Linux. The default kernel is usually set to the newest one, but can be adjusted to user preference.

First, you need to identify and adjust the kernel ids used in the boot loader config file.

Find the kernel `id`

Find kernel `id` with `bootctl`

Change to the root user with sudo -s and enter your password.

Downgrade with eos-shifttime

Wed, 13 May 2026 14:09:31 -0700

warning

Using eos-shifttime does not revert AUR packages. The downgrade only applies to official Arch packages from the archive repositories.

The eos-shifttime application can revert system packages to their state at a specified date.

Open a terminal window and run eos-shifttime with root permissions.
Select the date to revert to on the GUI window, then click Revert.
Reboot to apply the changes.

Install new theme in Typora

Thu, 25 Jun 2026 10:37:17 -0700

Typora is a minimalist text editor that renders markdown and code in real-time. The software comes with several default themes that can be applied through the Themes option menu.

First, find which custom theme you’d like to install from the Typora themes page.

Update packages

Tue, 12 May 2026 14:09:31 -0700

There are 3 commands used to update Endeavour OS systems:

pacman is the package manager used to install and update programs in Arch Linux.

To perform a full system update and refresh, run:

 $ sudo pacman -Syu

info

Some commands require prepending sudo to them as they require super user (or root) permissions to run.

Example terminal output

Re-rank mirrors

Fri, 12 Jun 2026 18:00:22 -0700

Mirrors are servers located around the world that store copies of software packages. When upgrading packages, your EndeavourOS system utilizes multiple mirrors, which are noted in a mirrorlist.

A well-maintained mirrorlist ensures the pacman package manager can access up-to-date package files when performing system updates. Outdated mirrors can prevent pacman from updating core packages.

Update the Arch mirrorlist by running:

Why do I get errors when I try to update?

Fri, 12 Jun 2026 18:00:22 -0700

Outdated package databases will cause errors when pacman tries to retrieve the latest package files.

This can be prevented through regular mirror maintenance.

See: Update mirrors guide

Error: failed to commit transaction (conflicting files):

Running a sudo pacman -Syu update may fail and display the following errors:

  error: failed to commit transaction (conflicting files)
 <example>: /example exists in filesystem (owned by filesystem)
 <example>: /lib/systemd/system/example.service exists in filesystem

These issues can be resolved with manual intervention. Uninstall and remove the package from the system, then reinstall/update with these two commands:

Are there mirror management alternatives?

Fri, 12 Jun 2026 18:00:22 -0700

Popular alternatives to mirror management are listed on the Arch mirrors wiki. Some programs can automate mirror management when configured properly.

One such example is ghostmirror, which:

What is the AUR?

Fri, 12 Jun 2026 18:00:22 -0700

The Arch User Repository (known as AUR) is a large library of community user-produced packages for Arch Linux.

Popular and well-maintained packages are voted on by the community to include in the official Arch extra repository.

To download and install AUR packages:

Clone the git repository listed on the package’s AUR page:
```
  git clone https://aur.archlinux.org/<pkg>.git
 
```
Change into the package directory:
```
 cd <pkg>
 
```
Build and install the package with:

Game Psychology Research [PDF]