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Linux 6.18.44 PS4 Baikal r1

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@meerzulee meerzulee released this 11 Aug 15:12
v6.18.44-ps4-baikal-r1
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Linux 6.18.44 PS4 Baikal r1

This is the first public 6.18 LTS pre-release from the patch-based
linux-ps4 build. It is intended for PS4 Baikal developers with a recovery
path and UART access.

Hardware evidence

The released bzImage is the exact A39 artifact tested on a Baikal B1 PS4 with
firmware 12.02. Experiments A43 and A51 reached stable 1920×1080 at 60 Hz,
LightDM and XFCE. A51 also connected through the internal MT7668, obtained
a DHCP lease, and accepted pinned-key SSH.

Boot boundary

This release does not install Linux to the PS4 internal disk. The tested
chain uses:

  1. GoldHEN PayLoader and ps4-linux-loader v25;
  2. kernel, initramfs and boot arguments from the USB FAT partition;
  3. Arch/XFCE root filesystem from the USB ext4 partition labeled
    OMARCHY-PS4.

No initramfs, root filesystem, proprietary PS4 firmware, per-console key, or
payload is bundled with the kernel release.

Assets

Asset Purpose SHA-256
bzImage hardware-tested kernel b54490ed1f5d12432bf4ead11f27f1cf8aed008f0b76787c0060141b97414614
config exact resolved kernel configuration 922dc16e4928b69cf711f377a29c75c9627d534ad3a2a208dc3b3f1dd61cf234
SHA256SUMS asset integrity list verify after download

The tested root filesystem has no /usr/lib/modules/6.18.44-ps4-baikal
directory; the hardware paths used in A51 are built into the kernel. No module
archive is published for r1. Optional modules can be built from the tagged
source and exact config.

Known limitations

  • Internal Toshiba SATA reads time out during discovery and add roughly 96
    seconds to boot. Sony partitions must remain unmounted and untouched.
  • Built-in Ethernet is not working.
  • EGL/OpenGL acceleration, Vulkan, HDMI audio, Bluetooth, DualShock 4,
    thermals and repeated cold boots are not release-accepted yet.
  • The kernel currently includes verbose development diagnostics.
  • This is a pre-release, not a general-user distribution image.

Source and credit

The release is based on Linux v6.18.44 commit
1efe5d048a391de3ead2804b2e7f86376c356cc5 and 54 active PS4 patches. Exact
crashniels, feeRnt, rmux and local source links are recorded in
PATCH-PROVENANCE.md. Borrowed patches preserve original
authors where available; locally adapted behavior is labeled as such.

  • release series SHA-256:
    614e4bf8ef13997dfb4b564e747ceac176cda6b9481948ee4118b518af374c82
  • ordered active patch-content SHA-256:
    64f26872e363234b7e83f3b310225b1ae727f154490376b3ce7f969c69e22e56

After the A39 hardware build, source URLs were expanded in comments and patch
headers. No kernel hunk or resolved config changed. The release tag therefore
uses the two source-metadata identities above and the same compiled kernel
code as the tested A39 bzImage.

Assets 5
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