readme: avoid using deprecated apt-key

Signed-off-by: Thomas Lamprecht <t.lamprecht@proxmox.com>

diff --git a/README.dev b/README.dev
index bf3c82baa7b39c7c13a23334b8b677a4a4058b19..c5468f88cb899fa3ea44771f3621a93686c80eb0 100644 (file)
--- a/README.dev
+++ b/README.dev
@@ -23,7 +23,7 @@
 
 7.  Add the repository key, run:
 
-    wget -O- "https://enterprise.proxmox.com/debian/proxmox-release-bookworm.gpg" | apt-key add -
+    wget -O /etc/apt/trusted.gpg.d/proxmox-release-bookworm.gpg "https://enterprise.proxmox.com/debian/proxmox-release-bookworm.gpg"
 
 8.  run: apt-get update && apt-get dist-upgrade
 9.  run: apt-get install proxmox-ve