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You will need a USB drive of 1 GB or more.
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This means that you can boot from a USB drive and keep customisations such as keyboard layout, numlock, preferences, additional packages saved on the drive. It is possible to have Ubuntu or Kubuntu on a USB drive (AKA USB Stick or Thumb drive or Flash drive) or USB hard disk drive with persistent mode.
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Installing Ubuntu on USB drive using Windows.Set the file system of partition 1 to FAT:.Method 3: Copying the ISO CD image to the USB drive.Method 2: hiding the ISO image in a partition in the USB drive.Method 1: Installing Ubuntu directly to USB drive from installer CD.Method 0: Automatically create Live USB system.
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