Preparing USB Drives for Imaging
To install an image on a VotingWorks component, i.e., to image a machine, you need two USB drives:
A vx-iso USB drive — vx-iso is our VotingWorks-specific ISO installer program.
An image USB drive — This is an empty USB drive with two partitions, a "Data" partition that can contain as many VotingWorks images as space allows and a "Keys" partition that can optionally contain the VotingWorks Secure Boot public keys, necessary if a machine hasn't had these keys installed yet.
Clone the vx-iso repo for the tooling necessary to prepare the above:
To create a vx-iso USB drive, you can follow these instructions: https://github.com/votingworks/vx-iso/blob/main/README.md#creating-an-install-drive
If this is SLI, we have provided you with vx-iso USB drives so that you don't need to prepare them from scratch.
To create an image USB drive, you can follow these instructions: https://github.com/votingworks/vx-iso/blob/main/README.md#creating-an-image-with-optional-secure-boot-keys-drive
You'll need access to the relevant images and optionally the VotingWorks Secure Boot public keys. Both of these are stored on a private S3 bucket, though they're not sensitive, and VotingWorks can prepare temporary links to grant access to them.
If this is SLI, you do not need to create data drives with the VotingWorks Secure Boot public keys. Secure Boot has already been configured on all your machines.
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