From owner-freebsd-arm@freebsd.org Tue Aug 20 02:18:20 2019 Return-Path: Delivered-To: freebsd-arm@mailman.nyi.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2610:1c1:1:606c::19:1]) by mailman.nyi.freebsd.org (Postfix) with ESMTP id 62716C0ED5 for ; Tue, 20 Aug 2019 02:18:20 +0000 (UTC) (envelope-from zhangchaowang@gmail.com) Received: from mail-lj1-x241.google.com (mail-lj1-x241.google.com [IPv6:2a00:1450:4864:20::241]) (using TLSv1.3 with cipher TLS_AES_128_GCM_SHA256 (128/128 bits) server-signature RSA-PSS (4096 bits) client-signature RSA-PSS (2048 bits) client-digest SHA256) (Client CN "smtp.gmail.com", Issuer "GTS CA 1O1" (verified OK)) by mx1.freebsd.org (Postfix) with ESMTPS id 46CDwq0mWCz3GNm for ; Tue, 20 Aug 2019 02:18:18 +0000 (UTC) (envelope-from zhangchaowang@gmail.com) Received: by mail-lj1-x241.google.com with SMTP id f9so3573679ljc.13 for ; Mon, 19 Aug 2019 19:18:18 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=mime-version:from:date:message-id:subject:to; bh=y7+iO3JPyC3B4a73GxBznObDGmPs9hxYPJdw/yYGcVw=; b=Jzg3kU1/SL3PdMMhjlx9ooSODSBbrWRTuFRQxUamaH5TS0XLhVjMdlSOT5zLFhfWqd vTnzZnmPDbszBIDXeqGx6YZlBBCPf0hTqOjhgLdb0+LETxRKdV/PZQpy7ePOTaKiXN7q Fa0KzHqXhOAg7fucgGbiUUonFAMQUc5XuV0+CK/3Kau2xtzwJOqwR+iS1lKMsag0t60t /xXao/kOSCDFIFJ6h1H/7gnC8snTbKyzEi60KTu7X2aTp00buwIECFBYBSSCeEW9Yywz ayA3BHkUbxMZlnXOinuErun7llitq5Ml0GItYCjvX94hBXki6BFyCj/y9zsUOT61Znhw ZbDg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:mime-version:from:date:message-id:subject:to; bh=y7+iO3JPyC3B4a73GxBznObDGmPs9hxYPJdw/yYGcVw=; b=LEk6fUWkmMuAruFrrsZ+UqLJa+Ph9uXyVk4xyKD1ApXjdlqVO59A+nCgsJx/4l/cPr xKWN6qieDKihwcnGfx88IO/jhYFwgf9ZfznPL70BERcDpbwxZxNTbCfSZEzgnp2U3MLL W+LCM6Zi6f3SHQQ+4zmt46Q340PnP6w8j//lowXxy0kBw+zp/kfmnnLqcrVOmfKfCe8U D4PbV9Tc8uTuv3Ffn/r4sNJ9zYqEmpELcv4kUXxRs31FmPOeWx3nTYbAzmU/RmsGjBk8 FtnrC0QJL81/dOHG+rGqKejpDlY8pkzG1MCOKaVc/YxheF0jwI6tV/Ath65m2k2Se/90 /uxw== X-Gm-Message-State: APjAAAWHNvy14KlOK/V5HyxVp/XvIZHY2FJyKy2bkmBbfkD1abHH/0NH xC43sdmBXoTpYkqcPw9Kfr3sNkLyyK29GlsKJfY2Oilv X-Google-Smtp-Source: APXvYqx/Jl+rPVhK8a1gZhG3D1459qPkZLV1zcAfKaRH/Jzf7z6kRuxj4+sXYljVT1g9BNIBY7e0isKsvat3OK1xqgA= X-Received: by 2002:a2e:1518:: with SMTP id s24mr5529229ljd.205.1566267495961; Mon, 19 Aug 2019 19:18:15 -0700 (PDT) MIME-Version: 1.0 From: Ricky Zhang Date: Mon, 19 Aug 2019 22:18:05 -0400 Message-ID: Subject: How to change rootfs from official RPI3 image To: freebsd-arm@freebsd.org X-Rspamd-Queue-Id: 46CDwq0mWCz3GNm X-Spamd-Bar: --- Authentication-Results: mx1.freebsd.org; dkim=pass header.d=gmail.com header.s=20161025 header.b=Jzg3kU1/; dmarc=pass (policy=none) header.from=gmail.com; spf=pass (mx1.freebsd.org: domain of zhangchaowang@gmail.com designates 2a00:1450:4864:20::241 as permitted sender) smtp.mailfrom=zhangchaowang@gmail.com X-Spamd-Result: default: False [-3.99 / 15.00]; ARC_NA(0.00)[]; NEURAL_HAM_MEDIUM(-1.00)[-1.000,0]; R_DKIM_ALLOW(-0.20)[gmail.com:s=20161025]; FROM_HAS_DN(0.00)[]; R_SPF_ALLOW(-0.20)[+ip6:2a00:1450:4000::/36]; FREEMAIL_FROM(0.00)[gmail.com]; MIME_GOOD(-0.10)[multipart/alternative,text/plain]; PREVIOUSLY_DELIVERED(0.00)[freebsd-arm@freebsd.org]; TO_DN_NONE(0.00)[]; IP_SCORE_FREEMAIL(0.00)[]; RCPT_COUNT_ONE(0.00)[1]; NEURAL_HAM_LONG(-1.00)[-1.000,0]; IP_SCORE(0.00)[ip: (3.23), ipnet: 2a00:1450::/32(-3.02), asn: 15169(-2.37), country: US(-0.05)]; TO_MATCH_ENVRCPT_ALL(0.00)[]; DKIM_TRACE(0.00)[gmail.com:+]; DMARC_POLICY_ALLOW(-0.50)[gmail.com,none]; RCVD_IN_DNSWL_NONE(0.00)[1.4.2.0.0.0.0.0.0.0.0.0.0.0.0.0.0.2.0.0.4.6.8.4.0.5.4.1.0.0.a.2.list.dnswl.org : 127.0.5.0]; NEURAL_HAM_SHORT(-0.99)[-0.990,0]; FROM_EQ_ENVFROM(0.00)[]; MIME_TRACE(0.00)[0:+,1:+,2:~]; FREEMAIL_ENVFROM(0.00)[gmail.com]; ASN(0.00)[asn:15169, ipnet:2a00:1450::/32, country:US]; RCVD_COUNT_TWO(0.00)[2]; RCVD_TLS_ALL(0.00)[]; DWL_DNSWL_NONE(0.00)[gmail.com.dwl.dnswl.org : 127.0.5.0] Content-Type: text/plain; charset="UTF-8" X-Content-Filtered-By: Mailman/MimeDel 2.1.29 X-BeenThere: freebsd-arm@freebsd.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: "Porting FreeBSD to ARM processors." List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 20 Aug 2019 02:18:20 -0000 Hi, I dd a FreeBSD 12.0 RPI3 image to a SD card. Everything works like a charm on my RPI3. But I want to switch rootfs to a larger USB hard drive. The boot partition contains one configurable text file config.txt. I can't google how the uboot load kernel from the rootfs partition. To my surprise, the FreeBSD kernel is in the rootfs partition. Is this u-boot pieces open source? Where are the user guide documents? The only document I could find provides no technical details in boot sequence. thanks, Ricky