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<!-- Code generated from the comments of the ISOConfig struct in common/iso_config.go; DO NOT EDIT MANUALLY -->
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By default, Packer will symlink, download or copy image files to the Packer
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cache into a "`hash($iso_url+$iso_checksum).$iso_target_extension`" file.
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Packer uses [hashicorp/go-getter](https://github.com/hashicorp/go-getter) in
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file mode in order to perform a download.
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go-getter supports the following protocols:
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* Local files
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* Git
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* Mercurial
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* HTTP
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* Amazon S3
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Examples:
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go-getter can guess the checksum type based on `iso_checksum` len.
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```json
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{
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"iso_checksum": "946a6077af6f5f95a51f82fdc44051c7aa19f9cfc5f737954845a6050543d7c2",
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"iso_url": "ubuntu.org/.../ubuntu-14.04.1-server-amd64.iso"
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}
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```
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```json
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{
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"iso_checksum": "file:ubuntu.org/..../ubuntu-14.04.1-server-amd64.iso.sum",
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"iso_url": "ubuntu.org/.../ubuntu-14.04.1-server-amd64.iso"
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}
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```
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```json
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{
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"iso_checksum": "file://./shasums.txt",
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"iso_url": "ubuntu.org/.../ubuntu-14.04.1-server-amd64.iso"
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}
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```
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```json
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{
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"iso_checksum": "file:./shasums.txt",
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"iso_url": "ubuntu.org/.../ubuntu-14.04.1-server-amd64.iso"
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}
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```
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