Preparing a Chapeau USB disk on Linux & Unix

Capacity requirement

A USB disk capacity of at least 4GB is required to create a Chapeau bootable USB disk.


When you perform this procedure any data on the USB flash drive is destroyed with no warning.
Also make sure that you specify the correct disk device, and make sure that this flash drive does not contain any data that you want to keep.

Writing Chapeau to your USB disk with dd

  1. Plug in your USB flash drive.
    Find the flash drive’s device name. If the media has a volume name, use it to look up the device name in /dev/disk/by-label, or use the findfs command:

    findfs LABEL=MyLabel

    If the media does not have a volume name or you do not know it, you can also use the dmesg command shortly after connecting the media to your computer. After running the command, the device name (such as sdb or sdc) should appear in several lines towards the end of the output.

  2. Switch to the root user either with sudo, entering your password when prompted:
    sudo su -

    ..or with su, entering root’s password when prompted

    su -

  3. Then use the dd command to write the boot ISO image to the USB device:
    dd if=path/image_name.iso of=/dev/device bs=block size

    where path/image_name.iso is the boot ISO image file that you downloaded and device is the device name for the USB flash drive.
    Ensure you specify the device name (such as sdc), not the partition name (such as sdc1).
    The bs option specifies the block size; it can be omitted, but specifying it will speed up the process. For example:

    dd if=~/Downloads/Chapeau_21.1.2_x86_64.iso of=/dev/sdd bs=512k

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