From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Authentication-Results: lists.ozlabs.org; spf=pass (mailfrom) smtp.mailfrom=linux.ibm.com (client-ip=148.163.158.5; helo=mx0a-001b2d01.pphosted.com; envelope-from=anoo@linux.ibm.com; receiver=) Authentication-Results: lists.ozlabs.org; dmarc=none (p=none dis=none) header.from=linux.ibm.com Received: from mx0a-001b2d01.pphosted.com (mx0b-001b2d01.pphosted.com [148.163.158.5]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by lists.ozlabs.org (Postfix) with ESMTPS id 45SK925sx2zDq9s for ; Tue, 18 Jun 2019 04:13:58 +1000 (AEST) Received: from pps.filterd (m0098420.ppops.net [127.0.0.1]) by mx0b-001b2d01.pphosted.com (8.16.0.27/8.16.0.27) with SMTP id x5HI7Z9d018553 for ; Mon, 17 Jun 2019 14:13:54 -0400 Received: from e12.ny.us.ibm.com (e12.ny.us.ibm.com [129.33.205.202]) by mx0b-001b2d01.pphosted.com with ESMTP id 2t6dnhe1ym-1 (version=TLSv1.2 cipher=AES256-GCM-SHA384 bits=256 verify=NOT) for ; Mon, 17 Jun 2019 14:13:54 -0400 Received: from localhost by e12.ny.us.ibm.com with IBM ESMTP SMTP Gateway: Authorized Use Only! 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Violators will be prosecuted; (version=TLSv1/SSLv3 cipher=AES256-GCM-SHA384 bits=256/256) Mon, 17 Jun 2019 19:13:52 +0100 Received: from b01ledav001.gho.pok.ibm.com (b01ledav001.gho.pok.ibm.com [9.57.199.106]) by b01cxnp23032.gho.pok.ibm.com (8.14.9/8.14.9/NCO v10.0) with ESMTP id x5HIDpcq35389772 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK); Mon, 17 Jun 2019 18:13:51 GMT Received: from b01ledav001.gho.pok.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id EA0D72805A; Mon, 17 Jun 2019 18:13:50 +0000 (GMT) Received: from b01ledav001.gho.pok.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id 9793528058; Mon, 17 Jun 2019 18:13:50 +0000 (GMT) Received: from ltc.linux.ibm.com (unknown [9.16.170.189]) by b01ledav001.gho.pok.ibm.com (Postfix) with ESMTP; Mon, 17 Jun 2019 18:13:50 +0000 (GMT) MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII; format=flowed Content-Transfer-Encoding: 7bit Date: Mon, 17 Jun 2019 13:15:22 -0500 From: Adriana Kobylak To: openbmc@lists.ozlabs.org Cc: openbmc Subject: Re: OpenBMC on eMMC NAND In-Reply-To: <2e42e3a31de54d202fb5a9d867414a87@linux.vnet.ibm.com> References: <2e42e3a31de54d202fb5a9d867414a87@linux.vnet.ibm.com> X-Sender: anoo@linux.ibm.com User-Agent: Roundcube Webmail/1.0.1 X-TM-AS-GCONF: 00 x-cbid: 19061718-0060-0000-0000-000003517E58 X-IBM-SpamModules-Scores: X-IBM-SpamModules-Versions: BY=3.00011280; HX=3.00000242; KW=3.00000007; PH=3.00000004; SC=3.00000286; SDB=6.01219368; UDB=6.00641375; IPR=6.01000509; MB=3.00027347; MTD=3.00000008; XFM=3.00000015; UTC=2019-06-17 18:13:53 X-IBM-AV-DETECTION: SAVI=unused REMOTE=unused XFE=unused x-cbparentid: 19061718-0061-0000-0000-000049CE644E Message-Id: X-Proofpoint-Virus-Version: vendor=fsecure engine=2.50.10434:, , definitions=2019-06-17_07:, , signatures=0 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 priorityscore=1501 malwarescore=0 suspectscore=0 phishscore=0 bulkscore=0 spamscore=0 clxscore=1015 lowpriorityscore=0 mlxscore=0 impostorscore=0 mlxlogscore=999 adultscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.0.1-1810050000 definitions=main-1906170162 X-BeenThere: openbmc@lists.ozlabs.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Development list for OpenBMC List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Mon, 17 Jun 2019 18:13:59 -0000 On 2019-06-17 11:26, Adriana Kobylak wrote: > Hi all, > > Joel and I have been working on getting OpenBMC to run on an eMMC NAND. > For the kernel, there'll be some patches coming to support it. > For the rootfs, the proposal is to have an ext4 filesystem, and use > lvm for volume management, which allows for dynamic partitioning. I'll be filling up a design doc to document this proposal. Also we don't have documentation for the currently supported filesystems, so I'll be pushing up new docs based on Milton's writeup[2] to document the existing implementations. The initial commit to propose a subdir to hold these upcoming docs is in gerrit for review[3]. > For proof of concept, we're starting to build an ext4 BMC image for > IBM's system Swift[1]. Up next is creating an initramfs that supports > lvm, and update the code update apps to handle ext4 images and lvm > volumes. Thinking of creating an 'lvm' or 'ext4' distro feature like > the 'ubi' one to enable this new support during build time. > Let us know if there are any opinions, questions, or interest. Look > for updates on the mailing list as we continue to make progress. > > > [1] https://gerrit.openbmc-project.xyz/c/openbmc/meta-ibm/+/22436 [2] https://lists.ozlabs.org/pipermail/openbmc/2017-August/008703.html [3] https://gerrit.openbmc-project.xyz/c/openbmc/docs/+/22666