From Fedora Project Wiki
Description
This test is intended to verify that the posted ISO media matches the published sha256sum.
How to test
- Download the
.iso
media files you wish to test - Download the matching CHECKSUM file. For example,
Fedora-12-Beta-i386-CHECKSUM
. - Validate that the published CHECKSUM match the downloaded ISO files by running the command
sha256sum
. For example, you might type:sha256sum -c Fedora-12-Beta-i386-CHECKSUM
- Validate the md5sum imprinted inside the ISO image by running the command
checkisomd5
. For example, to check all ISO files, you might type:for ISO in Fedora-*.iso ; do echo "= $ISO =" ; checkisomd5 $ISO ; echo; done
(Note: This check is not available for Live images)
Expected Results
- The command
sha256sum
should return OK results. For example:- $ sha256sum -c Fedora-12-Beta-i386-CHECKSUM
- Fedora-12-Beta-i386-DVD.iso: OK
- Fedora-12-Beta-i386-disc1.iso: OK
- Fedora-12-Beta-i386-disc2.iso: OK
- Fedora-12-Beta-i386-disc3.iso: OK
- Fedora-12-Beta-i386-disc4.iso: OK
- Fedora-12-Beta-i386-disc5.iso: OK
- Fedora-12-Beta-i386-netinst.iso: OK
- The command
checkisomd5
should indicate that it is OK to use this media for each ISO image. For example:- The media check is complete, the result is: PASS.
- It is OK to use this media.