Verifying LinuxCNC ISO download.

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1 year 10 months ago #315984 by Mitch66
I am just getting started and have been working through the excellent series of videos by Joe Hildreth.  These videos are now 6 years old and so I think things may have moved on.  When it comes to downloading the latest version from the Downloads page, Joe recommends checking the download with a check sum using md5sum or sha256sum.  On the video the checksum is on the download page, as is a link to zsync - the method of downloading he recommends.  This is not on the current downloads page.  Do I still need to check my download (to a flash drive) before i install it on my new control computer?  If this has been covered elsewhere I am sorry but I have tried searching and cannot find an answer.

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1 year 10 months ago #315991 by tommylight
Give it a try, it might just work ! :)
Jokes aside, been many, many years since i had a bad ISO download, so if your internet provider has not throttled downloads, all should be fine.

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1 year 8 months ago #320670 by martyop
The cheksum I get with sha256sum linuxcnc_2.9.4-amd64.hybrid.iso is:

ef0d0cc7142444d8793233e516105f0c9f3dee667cfede1539e2190b39a29060  linuxcnc_2.9.4-amd64.hybrid.iso

Which does not match the checksum listed on the getting linuxcnc page which is given as:
Code:
sha256sum: 08b3f59233e47c91cf1c9a85c41df48542c97b134efefa7446d3060c9a3e644b arm64 (Pi)

I have done several dowloads and thus far none of the checksums have matched.

zsync is listed as an alternative on the getting linuxcnc page.  It does  not find a control file that it wants on the server and it will not download linuxcnc_2.9.4-amd64.hybrid.iso.

I share your frustration.

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1 year 8 months ago #320675 by unknown
Just give it a go,
I get
ef0d0cc7142444d8793233e516105f0c9f3dee667cfede1539e2190b39a29060

and all seems fine.

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1 year 8 months ago #320683 by rodw
I woud not mind betting the checksum was never updated on the last release. I am sure checksums are unecessary today.
As said, just use it!

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1 year 8 months ago #320798 by martyop
OK. My check sum and unknown's match anyway. It would be good to update that page then to say that there is no check sum needed anymore. And remove zsync advice.
I'm sure you are very busy though. Thanks for the reply.

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