I would like install "etcher"

edit

Manual

1. Download from etcher is an AppImage :

2. Make it executable :

chmod +x etcher-electron-1.4.6-x86_64.AppImage64

1. Move to /opt/ Directory

sudo mv etcher-electron-1.4.6-x86_64.AppImage /opt/etcher-electron-1.4.6-x86_64.AppImage

1. Execute from there :

/opt/etcher-electron-1.4.6-x86_64.AppImage

1. if the aplication answer some Question just type YES..

From a Repo

1. Add Etcher repository:

sudo wget https://bintray.com/resin-io/redhat/rpm -O /etc/yum.repos.d/bintray-resin-io-redhat.repo

1. Update the repository list and install Etcher using command:

sudo dnf install -y etcher-electron

Note : After installing Etcher, launch it from menu. It will be probably found under System settings menu.

Regards., HTH

Read the readme for RedHat & Fedora