Bug#842201: hw-detect or lowmem: Spurious "No network interfaces detected" under QEMU

To: 842201@bugs.debian.org
Subject: Bug#842201: hw-detect or lowmem: Spurious "No network interfaces detected" under QEMU
From: Julien Muchembled <jm@jmuchemb.eu>
Date: Mon, 8 Sep 2025 16:57:35 +0200
Message-id: <[🔎] a45b0a05-d1aa-310e-7c1e-a09ecb9aea87@jmuchemb.eu>
Reply-to: Julien Muchembled <jm@jmuchemb.eu>, 842201@bugs.debian.org
In-reply-to: <handler.842201.B.14775149481339.ack@bugs.debian.org>
References: <147751458457.32480.15039372239064371783.reportbug@localhost> <handler.842201.B.14775149481339.ack@bugs.debian.org> <147751458457.32480.15039372239064371783.reportbug@localhost>

Oh, I found there was just not enough RAM. And I can still reproduce the problem with Debian 13.1:

  $ qemu-system-x86_64 -k fr -enable-kvm -smp 1 -m 370 -net nic -net user,hostfwd=tcp:127.0.0.1:2222-:22 -cdrom debian-13.1.0-amd64-netinst.iso -kernel vmlinuz -initrd initrd.gz -append 'priority=critical language=C country=FR keymap=us anna/choose_modules=network-console,openssh-client-udeb network-console/password=root network-console/password-again=root lowmem/low=note'

Maybe the issue is in lowmem package (lowmem/insufficient not raising).

Julien

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