: Set the desired memory allocation and choose between BIOS or EFI modes.

is a lightweight system boot tester based on QEMU that has gained significant traction for its focused feature set and efficiency. It is particularly renowned for being one of the first boot testers to provide direct support for testing Windows Imaging Format (WIM) files.

Select how many host processor cores to pass through to the emulation environment.

QEMU (Quick Emulator) is an industry-standard, open-source machine emulator and virtualizer. It can run operating systems and programs for one machine on a different machine, often via hardware virtualization extensions like KVM for near-native performance. Because of its versatility, supporting a wide range of CPU architectures (x86, ARM, PowerPC, RISC-V, etc.), it has become an indispensable tool for developers, system administrators, and IT professionals. It is widely used for cross-platform software testing, embedded system development, and debugging without requiring physical hardware.

git bisect start git bisect bad v6.8-rc1 git bisect good v6.7 # The boot tester automatically runs 'git bisect run qbt test-good.yml'

: Easily toggle user-mode networking to test PXE boots or OS installers. Resource Presets

For enterprise users, 4.0 supports a master-worker architecture. A central Redis queue distributes boot tests across a farm of servers. You can parallelize 1,000 boot tests across 50 physical hosts.

Speeds up kernel/embedded Linux development by catching silent boot regressions early in CI pipelines, without needing full test suites or custom scripting.

Whether you need help setting up emulation?

Set this to 2 or more if you want the setup installer to load faster. Step 4: Launch and Test

Here’s a feature suggestion for :

Linux (Ubuntu 22.04/24.04, Debian 12, RHEL 9 recommended). Architecture: x86_64 (amd64) or aarch64 (arm64).

If testing a heavy OS (like Windows), increase RAM.