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Verification Error: Using shasum -a 256 warns about improperly formatted SHA1SUM lines

asked 2015-06-09 03:24:45 -0600

89alice gravatar image

Hello, II've finally decided to infall Fedora on my MacBookPro. However, I can't get past the download validation.

When i run shasum -a 256 -c Fedora-Workstation-22-x86_64-CHECKSUM

I get the following message:

shasum: Fedora-Workstation-22-x86_64-CHECKSUM: no properly formatted SHA1 checksum lines found

What could I be doing wrong? It seems weird that it warns about SHA1 checksums, when I'm using shasum -a 256 Are there alternative methods to verify the download?

Thanks for your help!

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answered 2015-11-26 19:47:40 -0600

The format of the *-CHECKSUM file is not recognized by shasum in Mac OS X. See my answer here for more details.

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answered 2015-06-09 07:23:50 -0600

geforce gravatar image

updated 2015-06-09 07:24:16 -0600

Why are you checking the CHECKSUM?, your supposed to check the iso!

$ shasum Fedora-Live-Workstation-x86_64-21_Alpha-1.iso 
5bc16fa0a042de7f827feb68b74e7078618d2ca6  Fedora-Live-Workstation-x86_64-21_Alpha-1.iso
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From man sha256sum:

-c, --check read SHA256 sums from the FILEs and check them

The syntax used by the OP is correct.

randomuser gravatar imagerandomuser ( 2015-11-27 00:11:58 -0600 )edit

How did this not get downvoted. The answer is insulting and the OP, as @randomuser points out, is correct (I don't have the rep, or I'd vote it down, even 2 years later).

decuser gravatar imagedecuser ( 2017-09-13 19:47:06 -0600 )edit

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Asked: 2015-06-09 03:24:45 -0600

Seen: 5,282 times

Last updated: Nov 26 '15