Checksum Verification

Learn how and why to verify file integrity.

Verifying File Checksums

File checksums are cryptographic calculations through a one-way hash function. Simply put, when the same data is passed through the same hash function, the result should always be identical. Verifying a file checksum is an important safety measure to ensure that your file was not altered or damaged in transit.

Verifying a SHA512 Hash

Originull Software provides file checksums of all Hollywood ISO images in the SHA512 checksum format. You can verify this on Linux or Apple macOS with built in tools:

Linux

Most distributions will ship with the sha512sum which can be invoked like such:

sha512sum /path/to/file.iso

For example, if you were downloading the AMD64 variant to the Downloads folder the command may look similar to this:

sha512sum ~/Downloads/HWAMD64.ISO

macOS & Perl

Apple macOS, as well as most Linux distributions with Perl5 installed, will ship with the shasum which can be invoked like such:

shasum -a 512 /path/to/file.iso

For example, if you were downloading the AMD64 variant to the Downloads folder the command may look similar to this:

shasum -a 512 ~/Downloads/HWAMD64.ISO

Both of these utilities will produce a one line output similar to the following:

$ shasum -a 512 ~/Downloads/HWAMD64.ISO 65cc568e1673f3af92902ddcdfef465e23fdc9a3b5efe6b48ffe081e23644bfd58eb3c92a22e9679d5e2cc4b0068b301762e7fd418c93e55dc7f45129e4d253a /Users/cat/Downloads/HWAMD64.ISO

The first value in the ouptut is the SHA512 hash and this value should be compared to the value supplied on the downloads page.