From 0adb4a8774012478260d96dc1bd943bd3c22eb27 Mon Sep 17 00:00:00 2001
From: 0xAN <kinrokinro@users.noreply.github.com>
Date: Tue, 21 Jan 2025 23:14:48 +0800
Subject: [PATCH] ZFS: add variables check step

Very edge case, but just let it be
---
 how-to-guides/zfs.md | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/how-to-guides/zfs.md b/how-to-guides/zfs.md
index 13495ca40c..efdfc7bc0c 100644
--- a/how-to-guides/zfs.md
+++ b/how-to-guides/zfs.md
@@ -44,6 +44,14 @@ Set variables:
 ZFS_POOL_NAME="celestia" && ZFS_DATASET_NAME="bridge"
 ```
 
+Validate variables are set:
+```sh
+if [ -z "$ZFS_POOL_NAME" ] || [ -z "$ZFS_DATASET_NAME" ]; then
+  echo "Error: Variables not set correctly"
+  exit 1
+fi
+```
+
 Install ZFS utils:
 ```sh
 sudo apt update && sudo apt install zfsutils-linux