Update paper wallet documentation (#7223)

* wip

* Update paper wallet documentation

* Add install from tarball instructions

* Separate out installation page

book/src/paper-wallet/README.md

@@ -17,12 +17,7 @@ support keypair input via seed phrases.
 To learn more about the BIP39 standard, visit the Bitcoin BIPs Github repository
 [here](https://github.com/bitcoin/bips/blob/master/bip-0039.mediawiki).
 
-## Installation
-
-The tools used in this guide can all be installed by following the
-[Installing the Validator Software](running-validator/validator-software.md)
-guide. After installation, you will have access to the `solana`,
-`solana-keygen`, and `solana-validator` tools.
+{% page-ref page="paper-wallet/installation.md" %}
 
 {% page-ref page="paper-wallet/keypair.md" %}
 

book/src/paper-wallet/installation.md

@@ -0,0 +1,85 @@
+# Installation
+Solana provides a CLI tool for key generation called `solana-keygen`. Here are 3
+different options for installations.
+
+## Option 1: via Solana Install Script
+Install the Solana CLI tools on your machine by running:
+
+```bash
+curl -sSf https://raw.githubusercontent.com/solana-labs/solana/v0.21.1/install/solana-install-init.sh | sh -s - 0.21.1
+```
+
+The following output indicates a successful update:
+
+```text
+looking for latest release
+downloading v0.21.1 installer
+Configuration: /home/solana/.config/solana/install/config.yml
+Active release directory: /home/solana/.local/share/solana/install/active_release
+* Release version: 0.21.1
+* Release URL: https://github.com/solana-labs/solana/releases/download/v0.21.1/solana-release-x86_64-unknown-linux-gnu.tar.bz2
+Update successful
+```
+
+You can now verify that `solana-keygen` was installed by running:
+
+```bash
+solana-keygen -h
+```
+
+After a successful install, `solana-install update` may be used to easily update
+the cluster software to a newer version at any time.
+
+### Option 2: via Rust Cargo
+First, install Rust's package manager `cargo`
+
+```bash
+$ curl https://sh.rustup.rs -sSf | sh
+$ source $HOME/.cargo/env
+```
+
+Then, install the `solana-keygen` tool
+
+```bash
+cargo install solana-keygen
+```
+
+You can now verify that `solana-keygen` was installed by running:
+
+```bash
+solana-keygen -h
+```
+
+### Option 3: via Tarball
+First download the desired release tarball from GitHub. The examples below will
+retrieve the most recent release. If you would like to download a specific
+version instead replace `latest/download` with `download/VERSION` where VERSION
+is a tag name from https://github.com/solana-labs/solana/releases (ie. v0.21.0).
+
+MacOS
+```bash
+$ curl -L -sSf -o solana-release.tar.bz2 'https://github.com/solana-labs/solana/releases/latest/download/solana-release-x86_64-apple-darwin.tar.bz2'
+```
+
+Linux
+```bash
+$ curl -L -sSf -o solana-release.tar.bz2 'https://github.com/solana-labs/solana/releases/latest/download/solana-release-x86_64-unknown-linux-gnu.tar.bz2'
+```
+
+Next, extract the tarball
+```bash
+$ tar xf solana-release.tar.bz2
+```
+
+Finally, `solana-keygen` can be run by
+```bash
+$ solana-release/bin/solana-keygen
+```
+
+If you would like to follow the remainder of these instructions without typing
+the leading path to `solana-keygen`, add it to your PATH environment variable
+with the following command
+```bash
+$ export PATH="$(pwd)/solana-release/bin:${PATH}"
+```
+This can be made permanent by adding it to your `~/.profile`

book/src/paper-wallet/keypair.md

@@ -27,6 +27,11 @@ If `--no-outfile` is **not** specified, the default behavior is to write the
 keypair to `~/.config/solana/id.json`
 {% endhint %}
 
+{% hint style="info" %}
+For added security, increase the seed phrase word count using the `--word-count`
+argumment
+{% endhint %}
+
 For full usage details run:
 
 ```bash