From owner-freebsd-questions@freebsd.org Thu Aug 17 20:55:55 2017 Return-Path: Delivered-To: freebsd-questions@mailman.ysv.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:1900:2254:206a::19:1]) by mailman.ysv.freebsd.org (Postfix) with ESMTP id A233ADD68CE for ; Thu, 17 Aug 2017 20:55:55 +0000 (UTC) (envelope-from vrwmiller@gmail.com) Received: from mail-oi0-x22d.google.com (mail-oi0-x22d.google.com [IPv6:2607:f8b0:4003:c06::22d]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (Client CN "smtp.gmail.com", Issuer "Google Internet Authority G2" (verified OK)) by mx1.freebsd.org (Postfix) with ESMTPS id 682BF6449C for ; Thu, 17 Aug 2017 20:55:55 +0000 (UTC) (envelope-from vrwmiller@gmail.com) Received: by mail-oi0-x22d.google.com with SMTP id x3so78784294oia.1 for ; Thu, 17 Aug 2017 13:55:55 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=mime-version:sender:from:date:message-id:subject:to; bh=rcwgMp1llVWrZ8dT0DROhV2qqQuTo0cNcH4OzWSTOcM=; b=twEzD5+9riQVGeMk7cBD9bII6XIbSEPjniXtYyuteYODmOe4zcSU/kovEy+7j+UFBZ OF+tnOrQ7SfqcavlRMw0t2qScdJhkFhWKvWZp3xbrW2tpRqfeoY8t0UENIrjOJ2jXhuc W0Z5Z398d/+BqSjqMc9AtEss16O4CKdegszWucpVJ3W8SDPRZRnNTGebbP8BGcdZjBFp xRol2kpLUHKvkZRuvsdVSSFhHkur379ERR42bA/dIQxyZ5NKaWUyPyxJ9ycDIZAJ8ACU LvJkKBu3ZdbIm6/GQXN0H04BH0RQEL09YciGc7xDiloBHnqWMphooAD0vHsqRDbqYku3 knYQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:mime-version:sender:from:date:message-id:subject :to; bh=rcwgMp1llVWrZ8dT0DROhV2qqQuTo0cNcH4OzWSTOcM=; b=GGKML24ogCxfQBXKVtkmS74RFW6VEP2t6347wZYOF2QDz7GBqVuChNQfm57PMGCjqn wUaFhRhUJ6gTFWxEZeepduyHV7W/VnHzT3bdmLBUpnLIJpryu2Fh3wCxJQHv4iOq9XD9 7nVDR3f1cbQu3ZSM4Dghvyk3pA2FIvuzRZfIi4EYW098tdz4u12N/LrWX8Mf+xEr9trY 6sF5LCtO9r8Dm5rowf2IzZ8aDbTXYImRt0xqSc4FSO5rJ/5AycYPaa6IVEwWQQ97ElOQ hqFJ4AwQwdOU3kw0HI9p/MnfJzMjUwatBHOfW/k3K7sXs4qYtRT49cZn1ySnlOLs3H8K Ebgw== X-Gm-Message-State: AHYfb5j65nnHRG+CiiKJfR4W4ZIDyEGNbofZoZgvZTUmpIJ+OA4KBPO+ hrwSp2Q8V1VWDQ6DyFo02MHQgWI2sw== X-Received: by 10.202.5.68 with SMTP id 65mr9141399oif.34.1503003354282; Thu, 17 Aug 2017 13:55:54 -0700 (PDT) MIME-Version: 1.0 Sender: vrwmiller@gmail.com Received: by 10.202.168.150 with HTTP; Thu, 17 Aug 2017 13:55:53 -0700 (PDT) From: Rick Miller Date: Thu, 17 Aug 2017 16:55:53 -0400 X-Google-Sender-Auth: 25zFirhdDmECcGr1Aj5PdKWfdgY Message-ID: Subject: Ascertain host serial number under UEFI To: FreeBSD Questions Content-Type: text/plain; charset="UTF-8" X-Content-Filtered-By: Mailman/MimeDel 2.1.23 X-BeenThere: freebsd-questions@freebsd.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: User questions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 17 Aug 2017 20:55:55 -0000 Hi all, Tossed this question up on twitter, but it might get additional audience here... How does one ascertain a host's serial number with FreeBSD sans hint.smbios.0.mem (stable/10 or 11, for example) on a system in pure UEFI mode? hint.smbios.0.mem [ in -CURRENT ] stores the address of the smbios table. dmidecode uses this as it's entry point to the smbios table where the host's serial number can be found. Variants of `dd if=/dev/mem ... | strings | grep ''` worked, but also rebooted the hardware on occasion. Not ideal. -- Take care Rick Miller