New Features

• runhcs
  • Adds support for OCI mount.Type "physical-disk" and "virtual-disk" for WCOW and LCOW.

    m := &oci.Mount{
        Type: "physical-disk",
        Source: "\\\\.\\PHYSICALDRIVE1",
        Destination: "C:\\test" // LCOW '/mnt/test'

    m := &oci.Mount{
        Type: "virtual-disk",
        Source: "C:\\test.vhdx", // OR 'C:\\test.vhd'
        Destination: "C:\\test" // LCOW '/mnt/test'

  • Stop loading ole32 to improve process activation
  • Set TerminateOnLastHandleClosed for all UVM activation's to guarantee resource cleanup on runhcs.exe exit.
  • Set StopOnReset for all UVM activation's so that the guest VM does not try to restart on reset.
  • Change default LCOW activation's to use rootfs.vhd when present over initrd.img by default.
  • On builds >= 18286 add support to LCOW for booting directly from the kernel (compressed or uncompressed)
  • Adds LCOW HNS network namespace support.
  • Adds support for logging all logrus messages to ETW for all runhcs.exe invocations.
  • Various performance and logging improvements for diagnostics.
• uvmboot
  • Introduces the uvmboot.exe tool for creating/starting/measuring performance of various LCOW configurations. This does not activate any containers but can be useful for creating/testing different LCOW options with various HCS/kernel features.

Bug Fixes

• runhcs
  • Properly set all Plan9 shares ReadOnly when OCI opts ro is set.
  • Properly convert from Docker TERM, KILL, 15, 9 signals for Windows container Kill requests using Unix semantics.