Jammy Desktop Iso Corruption

[Christian Ehrhardt]

On Tue, Nov 7, 2023 at 4:05 PM Adrian Hacker <ahacker.or.us at gmail.com>
wrote:

> Hi Bugsquad,
>
> Concerned user here that was repeatedly downloading the Jammy desktop iso
> 64 bit amd x86 version and the file kept coming up corrupt when I was doing
> the checksum.
>
> This all started because I suddenly got a corrupt kernel file issue on the
> jammy installation.  Thought it was my hard drive or install usb drive.  I
> ran a disk test and it came back ok.  So I thought it was my usb drive and
> I tried reimaging a couple different usb drives.  The corrupt file would
> cause the install to crash at the step where you are setting up username
> and password during installation.  Every usb drive i tried had the same
> issue.  (Don't shame me..but) I don't typically verify files I download
> straight from the website, but finally that was what I had to do because
> after redownloading several times without resolving the problem I verified
> the sha256sum of the file and it was not ok.
>
> I went down to bionic beaver and that worked just fine.  Maybe someone
> else could check the file integrity from your jammy download image on the
> releases page to make sure it's alright.  Let me know if there are any
> other questions or information I can provide.
>

Hi Adrian,
here trying the same for comparison ...
>From your description I assume you meant
https://releases.ubuntu.com/jammy/ubuntu-22.04.3-desktop-amd64.iso
According to the web UI that is a build from 2023-08-08 01:19

As of today that downloads fine for me and has this sha256 checksum
$ sha256sum ubuntu-22.04.3-desktop-amd64.iso
a435f6f393dda581172490eda9f683c32e495158a780b5a1de422ee77d98e909
 ubuntu-22.04.3-desktop-amd64.iso

This checksum also is in the file that accompanies it:
 $ cat SHA256SUMS
a435f6f393dda581172490eda9f683c32e495158a780b5a1de422ee77d98e909
*ubuntu-22.04.3-desktop-amd64.iso
a4acfda10b18da50e2ec50ccaf860d7f20b389df8765611142305c0e911d16fd
*ubuntu-22.04.3-live-server-amd64.iso

And that checksum file verifies against [1]
$ gpg --verify SHA256SUMS.gpg SHA256SUMS
gpg: Signature made Do 10 Aug 2023 21:33:07 EEST
gpg:                using RSA key 843938DF228D22F7B3742BC0D94AA3F0EFE21092
gpg: Good signature from "Ubuntu CD Image Automatic Signing Key (2012) <
cdimage at ubuntu.com>" [unknown]

Is this issue still persistent for you?
Did the download abort in any way, or was it a fully successful download
that then had a bad checksum for you?

[1]:
https://keyserver.ubuntu.com/pks/lookup?search=843938DF228D22F7B3742BC0D94AA3F0EFE21092&fingerprint=on&op=index




> Sincerely,
> Adrian Hacker  (my real last name ... not funny business)
> --
> Ubuntu-bugsquad mailing list
> Ubuntu-bugsquad at lists.ubuntu.com
> https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugsquad
>


-- 
Christian Ehrhardt
Director of Engineering, Ubuntu Server
Canonical Ltd
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