06-unmount-vault.sh

Unmounts and locks the LUKS2 encrypted code vault. Unmounts ~/Code and closes the cryptsetup container.

Usage

bash scripts/06-unmount-vault.sh [--dry-run] [--help]

Flag	Description
--dry-run	Preview all actions without modifying the system
--help	Show usage information and exit

What It Does

1. Unmount — if ~/Code is a mount point (detected via findmnt), unmounts it
2. Close LUKS container — if /dev/mapper/code_vault exists, closes it via cryptsetup close

Busy Device Handling

If umount fails (typically because a terminal or process has its working directory inside ~/Code), the script exits with an error message. To resolve:

1. Close any terminals or applications using files inside ~/Code
2. Run lsof +D ~/Code to identify remaining processes
3. Re-run the script

Idempotent Behaviour

Safe to run multiple times. If the vault is not mounted, the unmount step is skipped. If the LUKS container is already closed, the script reports success.

Files Modified

Path	Purpose
~/Code	Unmounted
/dev/mapper/code_vault	LUKS device mapper entry (closed)

Prerequisites

• cryptsetup installed
• sudo access for umount and cryptsetup close

Source

View the full source on GitHub.