Windows Image build fails at Install-Msys2.ps1 step

[pbk8s]

Description

Getting the following error during "Install-Msys2.ps1" script execution phase.

azure-arm.image: [102] Fetching latest update information...
    azure-arm.image: [116] Warning: Cannot retrieve remote tree Updates.xml contains invalid content: PackageUpdate element without ReleaseDate.
    azure-arm.image: [117] Loading component scripts...
    azure-arm.image: [122]
    azure-arm.image: [124] Installation space required: "0.00 bytes" Temporary space required: "0.00 bytes" Local repository size: "0.00 bytes"
    azure-arm.image: [130] Cache and install directories are on the same volume. Volume mount point: "C:\\" Free space available: "116.74 GB"
    azure-arm.image: [131] Installation will use 0.00 bytes of disk space.
    azure-arm.image: [133] backup  operation: Mkdir
    azure-arm.image: [134]    - arguments: C:/msys64
    azure-arm.image: [134] Done
    azure-arm.image: [136] perform  operation: Mkdir
    azure-arm.image: [136]    - arguments: C:/msys64
    azure-arm.image: [136] Done
    azure-arm.image: [137] Preparing the installation...
    azure-arm.image: [138] Install size: 0 components
    azure-arm.image: [139] Preparing to unpack components...
    azure-arm.image: [140] Unpacking components...
    azure-arm.image: [147] Writing maintenance tool: "C:/msys64/.exe.new"
    azure-arm.image: [147] Writing maintenance tool.
    azure-arm.image: [236] Wrote permissions for maintenance tool.
    azure-arm.image: [253] Critical: Error writing Maintenance Tool:  "Cannot write installer configuration to C:/msys64/: Access error"
    azure-arm.image: [254] WriteError : Error writing Maintenance Tool : Cannot write installer configuration to C:/msys64/: Access error

Executing the script on a Windows 11 -Arm64 image in Azure. This error started happening since last week, haven't occurred before. I have checked and it doesn't seem to be a permissions issue.

Platforms affected

• Azure DevOps
• GitHub Actions - Standard Runners
• GitHub Actions - Larger Runners

Runner images affected

• Ubuntu 20.04
• Ubuntu 22.04
• Ubuntu 24.04
• macOS 13
• macOS 13 Arm64
• macOS 14
• macOS 14 Arm64
• macOS 15
• macOS 15 Arm64
• Windows Server 2019
• Windows Server 2022
• Windows Server 2025

Image version and build link

Image is in a private Azure account.

Is it regression?

Yes, the image is in a private Azure account.

Expected behavior

Installation should be successful.

Actual behavior

The script fails while trying to install Msys2 on a Windows 11 - Arm64 VM.

Repro steps

Execute the "Install-Msys2.ps1" on a Windows 11 - Arm64 VM.

[vidyasagarnimmagaddi]

Hi @pbk8s , Thank you for bringing this issue to our attention. We will look into this issue closely and will update you after investigating.

[RaviAkshintala]

Hi @pbk8s For ARM related issues, We requesting you please raise them in partner-runner-images.