GNU bug report logs - #76741
libvirtd: could not find a usable firewall backend

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From: help-debbugs <at> gnu.org (GNU bug Tracking System)
To: Simen Endsjø <contact <at> simendsjo.me>
Subject: bug#76741: closed (Re: bug#76741: libvirtd: could not find a
 usable firewall backend)
Date: Wed, 05 Mar 2025 15:09:02 +0000

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Your bug report

#76741: libvirtd: could not find a usable firewall backend

which was filed against the guix package, has been closed.

The explanation is attached below, along with your original report.
If you require more details, please reply to 76741 <at> debbugs.gnu.org.

-- 
76741: https://debbugs.gnu.org/cgi/bugreport.cgi?bug=76741
GNU Bug Tracking System
Contact help-debbugs <at> gnu.org with problems

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From: Maxim Cournoyer <maxim.cournoyer <at> gmail.com>
To: Simen Endsjø <contact <at> simendsjo.me>
Cc: 76741-done <at> debbugs.gnu.org
Subject: Re: bug#76741: libvirtd: could not find a usable firewall backend
Date: Thu, 06 Mar 2025 00:07:56 +0900

Hi Simen,

Simen Endsjø <contact <at> simendsjo.me> writes:

> My guess is it's this commit:
> https://codeberg.org/guix/guix-mirror/commit/bd30b8506687d8ada63d163ee21c0b95f659d97a
>
> I tried adding the ebtables package to my system packages, but this did
> not have any effect.

It was looking for nft or iptables, which were not patched in the source
code (looked up from PATH).  I've patched these and a few others in
commit 4226b784b9, and 'make check-system TESTS=libvirt' now passes.

Thank you for the report!

-- 
Maxim

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From: Simen Endsjø <contact <at> simendsjo.me>
To: bug-guix <at> gnu.org
Subject: libvirtd: could not find a usable firewall backend
Date: Tue, 04 Mar 2025 13:51:46 +0100

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After an upgrade, I can no longer start libvirtd.

  guix c991c49
    repository URL: https://git.savannah.gnu.org/git/guix.git
    branch: master
    commit: c991c49f09d6fd2764e1f7bdae54c097c748524f

Mar  4 13:15:58 localhost shepherd[1]: Respawning libvirtd.
Mar  4 13:15:58 localhost shepherd[1]: Starting service libvirtd...
Mar  4 13:15:58 localhost shepherd[1]: Service libvirtd has been started.
Mar  4 13:15:58 localhost shepherd[1]: Service libvirtd started.
Mar  4 13:15:58 localhost shepherd[1]: Service libvirtd running with value #<<process> id: 23337 command: ("/gnu/store/bg0p3sjnl17i1zz14cnc82p4mvzc8n1s-libvirt-10.10.0/sbin/libvirtd" "-f" "/gnu/store/wx2j24bba8bzga5b90xks09fghxxqjk0-libvirtd.conf")>.
Mar  4 13:15:58 localhost libvirtd: 23349: info : libvirt version: 10.10.0
Mar  4 13:15:58 localhost libvirtd: 23349: info : hostname: REDACTED
Mar  4 13:15:58 localhost libvirtd: 23349: error : virNetworkLoadDriverConfig:155 : internal error: could not find a usable firewall backend
Mar  4 13:15:58 localhost libvirtd: 23349: error : virStateInitialize:672 : Initialization of bridge state driver failed: internal error: could not find a usable firewall backend
Mar  4 13:15:58 localhost libvirtd: 23349: error : daemonRunStateInit:617 : Driver state initialization failed
Mar  4 13:15:58 localhost shepherd[1]: Service libvirtd has been disabled.
Mar  4 13:15:58 localhost shepherd[1]:   (Respawning too fast.)

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