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Nov 19 2025
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The first thing we'll need is our GUI application. Install it using this command:
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sudo apt install gnome-disk-utility
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Once it is installed open up the application.
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Select the drive on the left representing your USB flash drive.
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Click three small gears labeled 'Additional partition options' and select 'Format partition'.
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Create a name for the volume. Tick 'Ext4' and check the 'LUKS' box. Select 'Next'.
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Create a sufficiently strong password for the type of data you plan to store.
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Select 'Format'
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See your shiny new LUKS encrypted Ext4 USB flash drive?
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Now you can store top secret data so long as no one discovers what the password is.
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