This page provides instructions for verifying the integrity of ISO files on all popular operating systems. We highly recommended you verify the Kubuntu Focus Suite ISO file immediately after download. This helps ensure you will not encounter corruption or stability issues during installation.
Please read the disclaimer before proceeding. We review and update guided solutions regularly. If you have suggestions or requests, please write support@kfocus.org.
The following instructions guide you through verifying a Kubuntu Focus Suite ISO using a Kubuntu Focus system.
kubuntu-focus-24.04-2024.08.26-desktop-amd64.iso
.Downloads
.Properties
.Checksums
tab, and paste the following checksum into the expected checksum field: 134680dd4e086c3ccbde512e7ad089d885a5a5c7265091e9397b2dbd72a681e8
The following instructions are useful for verifying ISO files in general, on any major OS.
Many ISOs have a verification hash file provided alongside them. When this is the case, most Linux systems can verify that the ISO is intact with one command, using the sha256sum
tool. To do this:
SHA256SUMS
or iso-file.sha256
.cd
command, navigate to the folder where the ISO and verification hash file are located. Oftentimes this will be ~/Downloads
.sha256sum -c verification-file.sha256 |& grep OK
, replacing the name verification-file.sha256
as appropriate.iso-file.iso: OK
, your ISO download is good.Sometimes the verification hash for an ISO file is provided as a string, rather than as a separate file. When this is the case, you can verify the ISO file using the following procedure:
cd
command, navigate to the folder where the ISO is located. Oftentimes this will be ~/Downloads
.if [ 'VERIFICATION-HASH-HERE' = "$(sha256sum iso-file.iso | cut -d' ' -f1)" ]; then echo 'Good'; else echo 'Bad'; fi
, replacing iso-file.iso
and VERIFICATION-HASH-HERE
as appropriate.Good
, your ISO download is good.Bad
, your ISO download is bad and should be deleted. You will have to download the ISO again in this scenario.Most versions of Windows provide the certutil
utility, which can be used to check ISO file verification hashes. To do this:
Downloads
.Alt+D
. The address bar at the top of the window will be highlighted.cmd
and press Enter. A command prompt window will open. Any commands run from here will be run in the current folder.certutil -hashFile "iso-name.iso" SHA256
, replacing iso-name.iso
as appropriate. The command will process for a while, then output a sequence of numbers and letters.macOS provides the shasum
utility, which can be used to check ISO file verification hashes. To do this:
Downloads
.shasum -a 256
(including a space at the end), then drag and drop the ISO file from the Finder window into the Terminal window. The full path to the ISO file will automatically appear in Terminal.Content will be added as needed.
This is a partial revision history. See the git
repository for all entries.
2024-07-19 0459cd52
First publicationWe try hard to provide a useful solution validated by professionals. However, we cannot anticipate every situation, and therefore cannot guarantee this procedure will work for your needs. Always backup your data and test the solution to determine the correct procedure for you.
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