Download the installers from the official source at https://testnets.cardano.org
On macOS and Windows you just need to execute the installer as you do with any other application.
LINUX installation instructions
These steps assume you are comfortable running scripts in a Linux terminal and are logged into a graphical desktop session as a user other than root.
Download Daedalus testnet installer
- Give executable permissions with:
chmod +x daedalus-4.2.0-testnet-18540.bin
- Run the installer* (for example):
Start Daedalus using any of these methods:
a. Using the desktop Application menub. Run ~/.local/bin/daedalus-testnet
c. Run daedalus-testnet (works on Linux distributions that put ~/.local/bin in $PATH)
* Some Linux distributions might ask you to run some commands as root to enable kernel.unprivileged_userns_clone. If sudo is available, running these two commands should work:
sudo sysctl -w kernel.unprivileged_userns_clone=1
sudo sh -c "echo kernel.unprivileged_userns_clone=1 > /etc/sysctl.d/nix-user-chroot.conf"
- Continue running the Installer
Note: There is no need to uninstall Daedalus from Linux prior to any version upgrade however if you would like to completely remove Daedalus from Linux please see the following article in our support portal: How to uninstall Daedalus from Linux