| Unofficial architecture / CPU baseline | Principal port or rebuild (latest stable) | Tracks which RHEL / RHL release | Typical minimum CPU that will boot | Notes |
| SPARC 32/64 (UltraSPARC II/III/IV) | Aurora SPARC Linux 2.0 (FC-3 based) | RHL 6 → Fedora Core 3 era (≈ RHEL 3) | UltraSPARC II (450 MHz) | Started when Red Hat dropped SPARC after RHL 6.2; still uses RPM/Yum tool-chain ArchiveOSauroralinux.org |
| PowerPC 32/64-BE (G3/G4/G5) | Yellow Dog Linux 7 | CentOS 7/RHEL 7 era | 400 MHz G3, 128 MiB RAM | Long-running PPC spin; boxed-set days were based on RHL, later versions rebased to RHEL/CentOS WikipediaWikipedia |
| Alpha (EV5 → EV6/EV67) | Alpha Core 3 (FC-5 base) → Fedora-Alpha SIG | RHL 7.1 lineage (post-Red Hat support) | 533 MHz EV56, 256 MiB | Community kept Alpha alive after RHL 7.1 via Alpha Core, then Fedora secondary arch Fedora ProjectFedora Project |
| ARMv5 / ARM11 (armv5tel) | RedSleeve 7.x | RHEL 6 / CentOS 6 | ARMv5 @ 500 MHz, 256 MiB | Pure rebuild of CentOS/RHEL source for very old 32-bit ARM boards RedSleeve Linux |
| ARMv7-A (armhfp) | CentOS 7 AltArch armv7hl | RHEL 7 | ARM Cortex-A7/A9, 1 GiB | First official CentOS AltArch; Red Hat only offered aarch64 blog.centos.orgblog.centos.org |
| i686 / 32-bit x86 | CentOS 7 AltArch i686 | RHEL 7 | Pentium Pro / Athlon-XP, 1 GiB | Lets you keep 32-bit x86 boxes on a RHEL-7-era code-base blog.centos.org |
| ppc64 (big-endian, POWER7/8) | CentOS 7 AltArch ppc64 | RHEL 7 | POWER7, 2 GiB | Red Hat shifted to little-endian; BE kept alive by AltArch SIG blog.centos.org |
| ppc64le (POWER9) | CentOS 7 / 8 AltArch “power9” | RHEL 7 & 8 | POWER9, 4 GiB | Red Hat began LE support only in RHEL 8; CentOS back-ported to 7 blog.centos.org |
| RISC-V (rv64gc) | Rocky Linux 9 AltArch (preview) / RL 10 work-in-progress | RHEL 9 (and planned 10) | Any 64-bit RISC-V SoC (≥ 1 GiB RAM) | Community port in RESF AltArch SIG; aims for GA alongside Rocky 10 rockylinux.org |
| Loongson MIPS64 (mips64el) | Loongnix 8 (CentOS 8 rebuild) | RHEL 8 | Loongson 3A/3B (≥ 1 GHz) |
Thursday, May 22, 2025
A grab-sheet of community/third-party “Red Hat-compatible” ports that keep older or exotic CPU families alive
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