From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from stravinsky.debian.org (stravinsky.debian.org [82.195.75.108]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id BE12B345CCA; Thu, 24 Sep 2026 11:20:33 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=82.195.75.108 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1790248844; cv=none; b=PzYQmUS8Z0YjHIjSTGFX5Gr6r8cHAzB/V0X4JXXNvUtbfKOJzbzo7RfxyOlD1e+7ukJpt4CeRHbJpn5/XcTTQWPuPrGjcV/Q472V9j8IoVesw8uPVzGlQF+Ysf5tFxJPF+XB7IsvRas6VtXOmeSCA8ClUeT+/LKJMZ1qt609Lyk= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1790248844; c=relaxed/simple; bh=yGq6jFcpBFFx6CsudYgDQSKkCZk6t8NYGt5rAsRafzg=; h=Date:From:To:Cc:Subject:Message-ID:References:MIME-Version: Content-Type:Content-Disposition:In-Reply-To; b=Rn75ZSXqcm3bsKt62kmFsqfCF3pQnznD0n5MXnBw696YC5OWfi9It4Mf3IukNNdy3bs6BLQ7Y7dKYjhhvsowgheBctaadJc2dekzLYV+ALarGMV71ZzLJW+7YiHZN6CQooeG633NMTeVSv1uupA4XvphxBHgC0RYwsGGTwEFr2g= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=debian.org; spf=pass smtp.mailfrom=debian.org; dkim=pass (2048-bit key) header.d=debian.org header.i=@debian.org header.b=qy9Nytc2; dkim=pass (2048-bit key) header.d=debian.org header.i=@debian.org header.b=ms+bdBL1; arc=none smtp.client-ip=82.195.75.108 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=debian.org Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=debian.org Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=debian.org header.i=@debian.org header.b="qy9Nytc2"; dkim=pass (2048-bit key) header.d=debian.org header.i=@debian.org header.b="ms+bdBL1" DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=debian.org; s=smtpauto.stravinsky; h=X-Debian-User:In-Reply-To:Content-Transfer-Encoding: Content-Type:MIME-Version:References:Message-ID:Subject:Cc:To:From:Date: Reply-To:Content-ID:Content-Description; bh=O60QNrfBDhwmpEFr3dBSj1xPYIcsj3539P1OBpzTDiI=; b=qy9Nytc22DTgI8DQyhvwK+U9F6 y8pq46jSEiU57a3wvOpbQkna1SbOsDkFfvDh8nfwfj02TGTptEjEmrWyUgLAwZ94fdpgIT/rWIxzx sj6avv55Pgq+ztuKJq7/b+ioQiMAtTennnwhpEQCTw/XcxVRpgq3IcIGaG+ZD9P8FZjn8VGYANY4T cKH0pBshYkePQ9+dUJhiFWZ9vHfdixlahvroLb068vnaKf4RAHK++lQiEsnZ8UMe3Fy5o09AQ0Ce+ gFZT6AWNb+ehyX5jfsHs7VXAnvQSyf0mzif6jUL9gJm3ELfg5QLY6aoX2UIQypKm2wAh4Ze+gzB57 fvy6ha+g==; Received: from authenticated-user by stravinsky.debian.org with esmtpsa (TLS1.3:ECDHE_SECP256R1__RSA_PSS_RSAE_SHA256__AES_256_GCM:256) (Exim 4.96) (envelope-from <93sam@debian.org>) id 1x9hUp-004UVG-0j; Thu, 24 Sep 2026 11:20:12 +0000 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=debian.org; s=debian1.93sam.user; h=In-Reply-To:Content-Transfer-Encoding:Content-Type: MIME-Version:References:Message-ID:Subject:Cc:To:From:Date:From:Reply-To: Subject:Content-ID:Content-Description:X-Debbugs-Cc; bh=O60QNrfBDhwmpEFr3dBSj1xPYIcsj3539P1OBpzTDiI=; b=ms+bdBL1Qc2jnBMQAqlUzzqnzZ WTywAihc9bn2lEiPOrwY/96gJn5J15sOGsNK2rR/NAz5QGqRqQAGJH08vm2e20f6iMsB7l7sDK90o U1DsjjLkH1IYbqKUQRk1q8GeK4BPr0cvQaWxjeBkhX6CiBPYf3TPaa6YEhCoEzqhfUeQK+B8RSoZR zeyrmBK4/JRssKKh0ucKjacfFEoX17wxEqijjdZ41ifWDGnlqNgEyMhFRX3lf61qwoIQcDlr+rgyL KG9Yp63k7PhzR3k+P3oKmCTBQYDcY9PkYGjmlRSoxdGFicM7llqdgijGe+unavR8/SAqUnY3HHrM1 2vWRC1JA==; Received: from bsmtp by cheddar.halon.org.uk with local-bsmtp (Exim 4.96) (envelope-from <93sam@debian.org>) id 1x9hUo-005JU1-0h; Thu, 24 Sep 2026 12:20:10 +0100 Received: from steve by tack.einval.org with local (Exim 4.98.2) (envelope-from <93sam@debian.org>) id 1x9hU3-0000000DbrR-2fHl; Thu, 24 Sep 2026 12:19:23 +0100 Date: Thu, 24 Sep 2026 12:19:23 +0100 From: Steve McIntyre <93sam@debian.org> To: "Luis Claudio R. Goncalves" Cc: Prashant Singh , Ard Biesheuvel , Jeremy Kerr , linux-efi@vger.kernel.org, linux-kernel@vger.kernel.org, Jonathan Corbet , linux-doc@vger.kernel.org, Sebastian Andrzej Siewior , Clark Williams , Steven Rostedt , linux-rt-devel@lists.linux.dev Subject: Re: [PATCH v2] efivarfs: add nostatfs mount option to skip QueryVariableInfo() Message-ID: <20260924111913.GN3447081@tack.einval.com> References: <20260919044124.8268-1-singhpra@juniper.net> Precedence: bulk X-Mailing-List: linux-doc@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Disposition: inline Content-Transfer-Encoding: 8bit In-Reply-To: X-attached: none User-Agent: Mutt/1.10.1 (2018-07-13) X-submit: auth config found for 93sam@debian.org, using mail-submit.debian.org X-Debian-User: 93sam Hey all, On Thu, Sep 24, 2026 at 08:05:34AM -0300, Luis Claudio R. Goncalves wrote: >On Fri, Sep 18, 2026 at 09:41:24PM -0700, Prashant Singh wrote: > >I tested the patch and was quite satisfied with the results, but upon a >comment from colleagues I ran a few more tests and noticed (confirmed their >hunch) that fwupd complains about not being able to get the free space in >efivars: > > # fwupdmgr get-devices | grep efivars > │ Update Error: getting efivars free space is not supported > │ │ Update Error: getting efivars free space is not supported > ... > >I was not able to establish whether that would prevent specific operations >due to the HW I had available for such test. fwupd will refuse to do some of its updates if it can't read the efivars free space, in particular updates of the secure boot keyrings like KEK/DB/DBX. -- Steve McIntyre, Cambridge, UK. 93sam@debian.org