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A comment on Rocky Linux 9.0. Parent comment

Re:Rocky Linux 9.0 by jaboutboul on Thursday July 14, 2022 @10:12PM (#32103860)
This is not correct. The issue is trying to use Alma 8’s mock chroot on a CentOS 7 host. The (older) versions of yum and rpm there don’t support subkeys.

There is a Red Hat BZ issue here: https://bugzilla.redhat.com/show_bug.cgi?id=2017069

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Re:Rocky Linux 9.0 by josephcsible on Thursday July 14, 2022 @11:51PM (#32104431)
Do RHEL/Rocky/CentOS Stream 8's mock chroots work on CentOS 7 hosts? If so, then this does seem like a legitimate binary incompatibility.
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Re:Rocky Linux 9.0 by mroche on Friday July 15, 2022 @09:02AM (#32107697)
That is not what binary compatibility means when talking about RHEL. It refers to the actual package ABIs and the compatibility levels we assign them:

https://access.redhat.com/articles/rhel-abi-compatibility

https://access.redhat.com/articles/rhel8-abi-compatibility

https://access.redhat.com/articles/rhel9-abi-compatibility

This would be closer to a bug-for-bug compatibility issue, as a result of an implementation change on the infra side of things. It's not due to the OS which is bug-for-bug compatible with its origin, RHEL 8.

While it would be nice if EL7 stacks are considered by the rebuild distributions, it's not a requirement and they are free to use features supported by the platforms they're building.

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