From f3fd344b3f0ee1b1e9845b5e6845cf65723b3133 Mon Sep 17 00:00:00 2001 From: Jerry Jacobs Date: Thu, 10 Apr 2025 07:35:13 +0200 Subject: [PATCH] vault backup: 2025-04-10 07:35:13 --- 2025/Secure erase under macOS + reinstall.md | 8 ++++++++ 1 file changed, 8 insertions(+) diff --git a/2025/Secure erase under macOS + reinstall.md b/2025/Secure erase under macOS + reinstall.md index 4e2ca2f..a0cd733 100644 --- a/2025/Secure erase under macOS + reinstall.md +++ b/2025/Secure erase under macOS + reinstall.md @@ -24,6 +24,14 @@ From this [post at Backblaze](https://www.backblaze.com/blog/how-to-wipe-a-mac- Source: +## Notes for wipe + +* Create macOS install/boot USB see ... +* Boot with alt-key into USB +* Go to menubar -> Utilities -> Terminal +* List disks with `diskutil list` +* Unmount disk `diskutil unmountDisk /dev/disk0` +* Secure erase disk `diskutil secureErase 2 /dev/disk0` ## Extra for reinstall clean old version * https://www.macworld.com/article/671911/how-to-get-old-macos-download-big-sur-catalina-mojave-and-more.html