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[GH-ISSUE #1468] QEMU Virtualization: Network Not Automatically Detected #2006

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opened 2026-03-01 18:37:55 +03:00 by kerem · 1 comment

kerem commented

2026-03-01 18:37:55 +03:00

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Originally created by @novaTopFlex on GitHub (May 25, 2024).
Original GitHub issue: https://github.com/netbootxyz/netboot.xyz/issues/1468

[]: This bug persists when memory is increased beyond 8GB.

I am unable to increase my memory beyond the suggested 8GB on my system as 8GB is already the size of system memory on my system.

Describe the bug

On QEMU virtual machines (QEMU version 9.0.0 for i386, x86_64), the system is unable to detect the appropriate network interface(s) after a while. Eventually, the system will fail to boot netboot.xyz v2.x and be forced to boot the main disk image (as in -boot c).

To Reproduce
Steps to reproduce the behavior:

Enter the command qemu-system-x86_64 -drive file=netboot.xyz.iso,format=raw,media=cdrom -drive file=AlpineTest.img,format=raw,media=disk -boot d.

Expected behavior

The virtual machine is not detecting my host's network connection even though my QEMU setup successfully accesses my Internet connection between my Linux host and my Linux guests.

Screenshots

Additional context

I have previously been successful with booting my virtual machine to netboot.xyz v2.x but that was under QEMU version 6.2. I have since installed version 9.0 and now with this said version of QEMU am unable to boot this specific ISO (I have still been successful with other ISOs).

Originally created by @novaTopFlex on GitHub (May 25, 2024). Original GitHub issue: https://github.com/netbootxyz/netboot.xyz/issues/1468 []: This bug persists when memory is increased beyond 8GB.  I am unable to increase my memory beyond the suggested 8GB on my system as 8GB is already the size of system memory on my system. **Describe the bug**  On QEMU virtual machines (QEMU version 9.0.0 for i386, x86_64), the system is unable to detect the appropriate network interface(s) after a while. Eventually, the system will fail to boot `netboot.xyz v2.x` and be forced to boot the main disk image (as in `-boot c`). **To Reproduce** Steps to reproduce the behavior: 1. Enter the command `qemu-system-x86_64 -drive file=netboot.xyz.iso,format=raw,media=cdrom -drive file=AlpineTest.img,format=raw,media=disk -boot d`. **Expected behavior**  The virtual machine is not detecting my host's network connection even though my QEMU setup successfully accesses my Internet connection between my Linux host and my Linux guests. **Screenshots**  ![Screenshot_2024-05-25_16-58-24](https://github.com/netbootxyz/netboot.xyz/assets/78602536/bbf64475-d75d-45d3-9f97-b7c5c8032a8f) **Additional context**  I have previously been successful with booting my virtual machine to `netboot.xyz v2.x` but that was under QEMU version 6.2. I have since installed version 9.0 and now with this said version of QEMU am unable to boot this specific ISO (I have still been successful with other ISOs).

kerem

2026-03-01 18:37:55 +03:00

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kerem commented

2026-03-01 18:37:56 +03:00

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@antonym commented on GitHub (May 26, 2024):

I tried on my Mac (M2) with QEMU 9.0 and the kernel and pulled it up without any issues:

qemu-system-aarch64 -cpu host -M virt,accel=hvf -m 4G \
-drive file=/opt/homebrew/share/qemu/edk2-aarch64-code.fd,if=pflash,format=raw,readonly=on \
-kernel netboot.xyz-arm64.efi \
-serial stdio \
-device virtio-gpu-pci \
-device nec-usb-xhci -device usb-kbd

It may be environmental, might also try different vnics.

@antonym commented on GitHub (May 26, 2024): I tried on my Mac (M2) with QEMU 9.0 and the kernel and pulled it up without any issues: ``` qemu-system-aarch64 -cpu host -M virt,accel=hvf -m 4G \ -drive file=/opt/homebrew/share/qemu/edk2-aarch64-code.fd,if=pflash,format=raw,readonly=on \ -kernel netboot.xyz-arm64.efi \ -serial stdio \ -device virtio-gpu-pci \ -device nec-usb-xhci -device usb-kbd ``` It may be environmental, might also try different vnics.

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