Il 2022-01-14 15:30 Johnny Hughes ha scritto: > No .. none of the CentOS Kernels were EVER binary compatible with any > RHEL kernel. > > CentOS Linux has always been (now also including CentOS Stream 8 and > 9) a completely separate 'closed' build system. > > We use the SAME source code to build things, modified to remove > branding. But CentOS has NEVER been (nor is any other rebuild > distribution now) Binary Compatible. > > Want to see how .. just extract two rpms with the same name from two > different distributions into separate directories and run a sha256sum > on all the files in the different directories with find command. Some > files may be identical (most text files that are copied), others will > not be. > > It is virtually impossible for all produced packages to be 'binary > compatible' UNLESS they are built with exact the same files (not files > BUILT fromt he same sources .. the exact same files) in the build root > AND with exactly the same software doing the building. Any group that > claims 'binary compatibility' is either lying or they do not > understand compiling and linking. > > CentOS never had that. Neither does any rebuild. > > This is why the CentOS Project 'CHANGED' our term from binary > compatible to 'Functionally Compatible' a long time ago. (Using same > source code, we produce DIFFERENT software .. that works the same way > but has different SHASUM values. Don't be fooled by key words like > 'binary compatible' .. check it out for yourself. > > If you build kpatches to kernels, to make them work you need to build > the kpatch for the specific kernel (CentOS would need to build against > CentOS kernels, etc). Also, there are the certificate signing issues > and keys that you would need to take into account. You need to have > the CA Trust to be able to create signatures that the system will > allow. > _______________________________________________ > CentOS mailing list > CentOS at centos.org > https://lists.centos.org/mailman/listinfo/centos Thank you so much for the detailed explanation, very appreciated. Regards. -- Danti Gionatan Supporto Tecnico Assyoma S.r.l. - www.assyoma.it email: g.danti at assyoma.it - info at assyoma.it GPG public key ID: FF5F32A8