Bluefin Server 26.10.1257

Image 26.10.1257 built from 5a9cdec3fcfa12a1c36422824bfb396e6aaafe85.

Install from a USB stick

Download bluefin-server-installer_26.10.1257.raw from the assets below for an
offline installation. On Linux, with curl and GNU coreutils installed:

mkdir -p bluefin-server-26.10.1257
cd bluefin-server-26.10.1257
curl -fLO 'https://github.com/projectbluefin/server/releases/download/v26.10.1257/bluefin-server-installer_26.10.1257.raw'
curl -fLO 'https://github.com/projectbluefin/server/releases/download/v26.10.1257/SHA256SUMS'
sha256sum --check --ignore-missing SHA256SUMS
lsblk -o NAME,SIZE,MODEL,TRAN,MOUNTPOINTS

Continue only if the installer checksum says OK. Checksums detect download
corruption; see signature verification
for the signed manifest and trusted keyring.

Writing the image erases the entire USB stick. Identify it by size and model
in lsblk, unmount its mounted partitions, and replace /dev/<usb> below with
its whole-disk device (not a partition):

sudo dd if=bluefin-server-installer_26.10.1257.raw of=/dev/<usb> bs=4M conv=fsync status=progress

Boot the stick in UEFI mode and follow the on-screen installer. The selected
target disk is erased too. Remove the stick when the machine reboots, then set
a non-empty root password at first boot. For Secure Boot setup, disk selection,
Homelab boot entries and provisioning, read the USB installer guide.

Which asset do I need?

In the names below, <ver> is 26.10.1257 and <uuid> identifies a partition.

Asset	Purpose
bluefin-server-installer_<ver>.raw	Offline USB installer; write this to your stick.
bluefin-server_<ver>.raw	OS discoverable disk image (DDI); pulled into RAM for diskless boot and used as its installation payload.
bluefin-server-netboot_<ver>.efi	Signed netboot unified kernel image (UKI) for UEFI HTTP/PXE boot; downloads the OS DDI.
bluefin-server-netboot_<ver>.esp.raw	Netboot EFI System Partition image with systemd-boot and Secure Boot enrollment payloads; requires network access to the OS DDI.
bluefin-server-<ver>.efi	Signed disk UKI for installed nodes and OS updates.
bluefin-server_<ver>_<uuid>.usr.raw, *.usr-verity.raw	The /usr partition and its verification data, consumed by systemd-sysupdate for A/B updates.
kubeadm_<ver>.raw.zst, k0s-<k0s-version>.raw.zst	Optional Kubernetes systemd-sysext images (kubeadm or k0s).
homelab_<ver>.raw.zst	Optional homelab cluster tooling extension.
argo-workflows_<ver>.raw.zst, mcp_<ver>.raw.zst, kubestellar_<ver>.raw.zst	Optional homelab extensions: Argo Workflows, MCP server and KubeStellar Console.
zfs_<ver>.raw.zst	Optional OpenZFS extension.
nvidia-open-595_<ver>.raw.zst, nvidia-container-toolkit-<toolkit-version>.raw.zst	Optional NVIDIA open kernel modules and Container Toolkit extensions.
homelab-*.bu, homelab-*.ign	Editable Butane YAML and rendered Ignition JSON provisioning templates for control-plane/node roles, with kubeadm or k0s. Customise before use.
homebrew_<ver>.raw.zst, homebrew-integration_<ver>.raw.zst	Homebrew system container and optional host-integration extension; installed packages persist separately from the immutable runtime.
podman_<ver>.raw.zst, docker_<ver>.raw.zst	Rootless host engine extensions; Home Server selects Podman by default.
home-server*.bu	Home installer profiles, with an optional existing Homelab cluster.
bluefin-server_<ver>.spdx.json	SPDX software bill of materials (SBOM), listing the image's components.
SHA256SUMS, SHA256SUMS.gpg	Release asset checksums and their detached signature.
GitHub's Source code archives	Repository source for developers; not bootable images.

See the boot and install guide,
extension guide and
homelab guide for other deployment options.

Image sizes

Measured by CI; bluefin-server_26.10.1257.size.json has the exact bytes. It is information only: SHA256SUMS does not cover it.

File or section	Size	Change since 26.10.1245
os_ddi_raw	449.6 MiB	0 B (+0.0%)
usr_raw	178.6 MiB	0 B (+0.0%)
usr_verity_raw	1.4 MiB	0 B (+0.0%)
disk_uki	71.9 MiB	+7.5 KiB (+0.0%)
netboot_uki	71.9 MiB	+7.5 KiB (+0.0%)
netboot_esp_raw	261.0 MiB	0 B (+0.0%)
installer_raw	1.2 GiB	0 B (+0.0%)
uki_linux_section	15.6 MiB	0 B (+0.0%)
uki_initrd_section	56.1 MiB	+7.3 KiB (+0.0%)
initrd_unpacked	199.8 MiB	-32 B (-0.0%)
argo_workflows_sysext_raw_zst	127.4 KiB	-1 B (-0.0%)
docker_sysext_raw_zst	110.2 MiB	+101 B (+0.0%)
homebrew_integration_sysext_raw_zst	10.9 MiB	+300 B (+0.0%)
homebrew_sysext_raw_zst	351.3 MiB	0 B (+0.0%)
homelab_sysext_raw_zst	2.7 MiB	-60 B (-0.0%)
k0s_sysext_raw_zst	168.6 MiB	0 B (+0.0%)
kubeadm_sysext_raw_zst	101.3 MiB	-285 B (-0.0%)
kubestellar_sysext_raw_zst	11.0 KiB	+2 B (+0.0%)
mcp_sysext_raw_zst	2.6 KiB	+5 B (+0.2%)
nvidia_container_toolkit_sysext_raw_zst	6.3 MiB	+948 B (+0.0%)
nvidia_open_595_sysext_raw_zst	181.6 MiB	-3 B (-0.0%)
podman_sysext_raw_zst	33.4 MiB	+277 B (+0.0%)
zfs_sysext_raw_zst	4.1 MiB	+26 B (+0.0%)