Can't find .sha256 for jammy

Support & Help Requests
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#1

Hi there and happy new year!

I can't find the .sha256 and .sha256 and .sha256.sign for jammy in here: https://releases.ubuntu-mate.org/

The jammy folder is somehow missing an /amd64 folder

Am I looking in the wrong place?

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#2

Hi Piko, welcome to the community, and a good new year to yo too :slight_smile:

Yep :slight_smile:

Try here:

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#3

Welcome @Piko to the community!

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#4

Thanks tkn,

Note that on the following page: Verifying Downloads | Ubuntu MATE
the first paragraph ( 1. Obtain the checksums and signature) seems to imply that the link that you provided is for downloads provided by Canonical.

Or for device ports provided by us:

https://releases.ubuntu-mate.org
Download the .sha256 and .sha256.sign files.
#5

Yes, all of Ubuntu, including Ubuntu-MATE is hosted by Canonical.
Only the 'device ports' (that means "other hardware than amd64") are hosted elsewhere.

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#6

:+1:

Since I downloaded the iso from the ubuntu-mate website I assumed that it was hosted there but the link is indeed redirecting to cdimage.ubuntu.com

My bad!

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#7

Hi, @Piko

To supplement the good answers that @tkn (thom) has already given you in this topic: I don't know if you noticed that, at the bottom of each download web page in the "Ubuntu MATE" web site, you can also find the SHA256 checksum / hash of the ISO file. :slight_smile:

So, for the AMD64 (64-bit PCs/ Macs) version of Ubuntu MATE 22.04 LTS ("Jammy Jellyfish"), the direct link to the web page is https://ubuntu-mate.org/download/amd64/jammy/ - To find that web page when starting from the "Ubuntu MATE" web site's home page - https://ubuntu-mate.org/ - one should click on the "Download" icon in the upper horizontal navigation bar - which would lead to the https://ubuntu-mate.org/download/ web page - and then clicking on the "64-bit PCs / Macs" box - which would lead to the https://ubuntu-mate.org/download/amd64/ web page - and then by clicking on the "22.04.3 LTS" box - which would lead to the https://ubuntu-mate.org/download/amd64/jammy/ web page.

Then, if you scroll down that https://ubuntu-mate.org/download/amd64/jammy/ web page, you'll also find there the "Checksum (SHA256)" value of the ISO file at the bottom of that page, as I show in the following screenshot:

image
image1098×731 49.4 KB

So, now you may also just select that hash value and copy and paste it to a text file :slight_smile: Or, if you want to get a bit more creative, you can also use a command to get that value from that web page, given that the SHA256 hash is a 64 character length alphanumeric string and assuming that it is surrounded by "<code>" and "</code>" HTML tags, as I now show:

$ wget -O- -q https://ubuntu-mate.org/download/amd64/jammy/ | grep -E '<code>[A-Za-z0-9]{64}</code>' | sed 's:</code>:\'$'\n'':g' | sed -n 's/.*>//p' | head -c -1
d84cd3eb7732fbb39ce3cd24ba1b302a643fe0362f7ac9261fc4c7b756e42a55

Naturally, the command above only works while the 64 characters string is enclosed in <code> and </code> HTML tags.

I hope this helps :slight_smile:

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#8

Thank you for a complete answer @ricmarques

I don't know if you noticed that, at the bottom of each download web page in the "Ubuntu MATE" web site, you can also find the SHA256 checksum / hash of the ISO file.

I didn't and I'm not afraid to admit that it wasn't even my first facepalm of the year 2024.

Meanwhile I had successfully verified the iso file with the help of @tkn

Now I ran into more serious problems with the installation, so buckle up :innocent:

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