MSI PRO B850-P WIFI Dasharo Release Notes¶
This is a Dasharo Pro Package Release. To obtain access to the pre-built binaries, you need to subscribe to the Dasharo Pro Package subscriber. You can do this by purchasing a Dasharo Pro Package product from our shop. As a subscriber, you will receive access to all firmware updates for the duration of your subscription via the Dasharo Pro Package newsletter, and gain entry to the Dasharo Premier Support invite-only live chat on the Matrix network, enabling direct engagement with the Dasharo Team and fellow subscribers for personalized, priority assistance.
Following Release Notes describe status of Open Source Firmware development for MSI PRO B850-P WIFI.
For detailed information on our validation setup, please refer to the Hardware Configuration Matrix.
For details about our release process please read Dasharo Standard Release Process.
v0.9.0 - 2026-07-30¶
Test results for this release can be found here.
Added¶
- Initial support for the MSI PRO B850-P WIFI board, based on AMD Phoenix
- UEFI compatible interface
- Configurable boot order
- Configurable boot options
- UEFI Secure Boot support
- USB boot support
- NVMe boot support
- Ubuntu LTS booting
- Windows 11 booting
- Serial port console redirection
- AMD fTPM support in coreboot and EDK2 UEFI Payload
- TPM Measured Boot
- SMM BIOS write protection with AMD ROM Armor 3
- Firmware update mode
- Setup menu password configuration
- USB stack disable option in setup menu
- Network stack disable option in setup menu
- TPM PPI support with UEFI variable backend
- SBOM generation for AMD PSP blobs, video and LAN drivers
- UEFI Capsule Update v1 support
- Rebased coreboot on 25.12 tag
- Rebased iPXE on last commit of February 2026
- Support for firmware flashing via MSI FlashBIOS
- TCG OPAL disk password support
- SATA disk password support
- Auto boot option creation for pre-installed OSes
- Quiet boot/Fast boot options
- AMD memory context save/restore support
- SMBIOS 3.8.0 specification support
- AMD CPU temperature reporting via ACPI Thermal Zone
- MSI EZ Debug LED support for DRAM and CPU initialization signaling
Known issues¶
- UEFI Capsules do not survive resets, only immediate Capsule on Disk supported
- Previous power state restoration does not work for powered off state
- Ubuntu 26.04 with serial console sometimes halts during boot on MSI PRO B850-P
- Firmware flashing and reset to defaults do not give the same measurements
- WiFi occasionally disappears on MSI PRO B850-P WIFI
Binaries¶
Raw Dasharo image¶
sha256 sha256.sig (msi_ms7e56_v0.9.0.rom)
SBOM CycloneDX¶
msi_ms7e56_v0.9.0.sbom.json sha256 sha256.sig
This is a Dasharo Pro Package release. For this platform, access to pre-built binaries is provided exclusively through the Full Build for MSI PRO B850-P WIFI, a bundled hardware-and-firmware product available in the 3mdeb shop. A standalone Dasharo Pro Package subscription is not offered for this platform.
With the Full Build, you receive firmware updates for the duration of your subscription via the Dasharo Pro Package newsletter, and gain entry to the Dasharo Premier Support invite-only live chat on the Matrix network, enabling direct engagement with the Dasharo Team and fellow subscribers for personalized, priority assistance.
To verify binary integrity with hash and signature please follow the instructions in Dasharo release signature verification using this key
SBOM (Software Bill of Materials)¶
- Dasharo coreboot fork based on 25.12 revision 713a0b76
- Dasharo EDKII fork based on edk2-stable202602 revision baafe898
- Dasharo iPXE fork based on 2026.02 revision ad8cbcee
- AMD openSIL based on phoenix_poc revision e71fca32
An integrated SBOM is also included in the firmware images. It describes a complete set of components and their versions used to build the firmware images. The published SBOM artifact is in CycloneDX format and can be viewed by SBOM tools, for example sbom-tools.