Start with Stream

Convert CentOS Stream 9 to ISA

These instructions assume that you have CentOS Stream 9 installed.

If you have problems with these instructions, please let us know so we can update them, or make them easier to understand.

ISA Baseline

ISA Baseline packages were compiled with gcc-12. Regular CentOS Stream 9 was compiled with gcc-11.

  • Install the centos-release-isa-baseline rpm
dnf -y install https://buildlogs.centos.org/9-stream/isa/x86_64/packages-baseline/Packages/c/centos-release-isa-baseline-1-1.el9sbase_902.noarch.rpm
  • Convert over to ISA
dnf distro-sync -y
reboot

ISA Optimized

ISA Baseline packages were compiled with gcc-12, but they also had x86_64-v3 enabled. Regular CentOS Stream 9 was compiled with gcc-11 and x86_64-v2.

  • Install the centos-release-isa-optimized rpm
dnf -y install https://buildlogs.centos.org/9-stream/isa/x86_64/packages-optimized/Packages/c/centos-release-isa-optimized-1-1.el9sopt_902.noarch.rpm
  • Convert over to ISA
dnf distro-sync -y
reboot