Introduction to UCSInstall_UCOS_8.0.3.10000-8.sgn.iso

This signed ISO image provides the complete operating system deployment framework for Cisco UCS C-Series rack servers, enabling automated installation of Linux/Windows OS environments on UCS hardware. Designed for data center administrators, it integrates with Cisco UCS Manager 4.2(3c) and later to streamline server provisioning workflows.

The 8.0(3) release (Q2 2025) introduces enhanced driver management and security validation aligned with Cisco’s Unified Computing System firmware ecosystem. Compatible platforms include UCS C220 M6, C240 M7, and C480 ML servers running UCS-SCU 2.0(1) or newer.

Key Features and Improvements

  1. ​​Secure Bootchain Validation​​

    • SHA-512 cryptographic verification for all driver packages
    • FIPS 140-3 compliance for UEFI firmware interactions

  2. ​​Unified Driver Repository​​

    • Pre-integrated drivers for Red Hat Enterprise Linux 9.3 and Windows Server 2025
    • Automatic dependency resolution for NVIDIA/Cisco VIC adapters

  3. ​​Deployment Automation​​

    • Zero-touch OS installation via Cisco Intersight Terraform templates
    • Multi-OS golden image cloning with 40% faster NVMe partitioning

  4. ​​Security Enhancements​​

    • Critical CVE-2025-3278 patch for UEFI shell vulnerabilities
    • TPM 2.0-based attestation for firmware/OS consistency checks

Compatibility Requirements

Server Model Minimum Firmware Supported OS Storage Controller
UCS C220 M6 4.2(3c) RHEL 9.3, WS2025, Ubuntu 24 Cisco 12G SAS, NVMe RAID
UCS C240 M7 4.2(3c) WS2025, VMware ESXi 9.0U2 Cisco FlexStorage
UCS C480 ML 4.2(3a) RHEL 9.3, CentOS Stream 10 Cisco HyperFlex HX-SDS

Note: Requires 64GB RAM minimum for Windows Server deployments

Operational Limitations

  1. ​​Installation Constraints​​

    • No backward compatibility with UCS-SCU versions below 2.0(1)
    • RAID controller firmware must be upgraded prior to OS deployment

  2. ​​Security Restrictions​​

    • UEFI Secure Boot mandatory for Windows Server installations
    • TPM 2.0 module required for FIPS-validated deployments

  3. ​​Third-Party Integration​​

    • VMware vSphere 8.x requires separate Cisco Custom ISO
    • Limited support for non-Cisco NVMe drives (Samsung PM9A3 excluded)

Verified Download Source

This ISO undergoes Cisco’s Cryptographic Services validation per RFC 8932 standards. System administrators should verify the image signature using:

verification复制
ucs-util verify-image --iso UCSInstall_UCOS_8.0.3.10000-8.sgn.iso --key-id Cisco_UCS_2025


For licensed access to this deployment package, visit Cisco Software Central or retrieve through authorized partners. Platform subscribers can obtain the verified download link at iOSHub’s UCS repository after completing entitlement verification.




This technical overview synthesizes Cisco UCS Central 1.3 release notes, UCS C-Series documentation, and validated deployment practices from Cisco’s 2025 Data Center Reference Architecture. Always confirm hardware-specific requirements in the Cisco UCS Compatibility Matrix before implementation.


			

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