From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail1.windriver.com ([147.11.146.13]) by linuxtogo.org with esmtp (Exim 4.72) (envelope-from ) id 1TxXhp-0002rE-V5 for openembedded-core@lists.openembedded.org; Tue, 22 Jan 2013 07:51:43 +0100 Received: from ALA-HCA.corp.ad.wrs.com (ala-hca.corp.ad.wrs.com [147.11.189.40]) by mail1.windriver.com (8.14.5/8.14.3) with ESMTP id r0M6a8t9017359 (version=TLSv1/SSLv3 cipher=AES128-SHA bits=128 verify=FAIL) for ; Mon, 21 Jan 2013 22:36:08 -0800 (PST) Received: from pek-qchen1-d1.corp.ad.wrs.com (128.224.163.154) by ALA-HCA.corp.ad.wrs.com (147.11.189.50) with Microsoft SMTP Server id 14.2.318.4; Mon, 21 Jan 2013 22:36:07 -0800 From: To: Date: Tue, 22 Jan 2013 14:36:11 +0800 Message-ID: X-Mailer: git-send-email 1.7.9.5 MIME-Version: 1.0 Cc: Zhenfeng.Zhao@windriver.com Subject: [PATCH V8 0/6] read-only rootfs support X-BeenThere: openembedded-core@lists.openembedded.org X-Mailman-Version: 2.1.11 Precedence: list List-Id: Patches and discussions about the oe-core layer List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 22 Jan 2013 06:51:45 -0000 X-List-Received-Date: Tue, 22 Jan 2013 06:51:45 -0000 X-List-Received-Date: Tue, 22 Jan 2013 06:51:45 -0000 Content-Type: text/plain From: Chen Qi The series of patches add support to read-only rootfs. The main idea is to use symbolic links to create the illuion that some directories are writable in case of a read-only rootfs. This set of patches have been tested on minimal images with and without 'read-only-rootfs' image feature enabled. Everything is OK. For sato images, everything is the same as before if 'read-only-rootfs' is not enabled. With 'read-only-rootfs' enabled, sato image could work if graphic interface is diabled. When all postinstall problems are resolved, sato image should work well (maybe with some small changes in volatiles-readonly-sato conf file). Changes for Version 4: 1) Improve the commit messages to be clearer. 2) Use 'sed -i' to replace 'sed' and 'mv' operations to cut down the exec overhead. Changes for Version 5: Fix the problem of failing to build the live images Changes for Version 6: 1) Let the image recipes provide the corresponding conf files for read-only rootfs. The config files are closely related to the image types, so it's more reasonable to let these image recipes provide the config files. 2) Support customized conf files for customized images. Changes for Version 7: 1) Separate read-only-rootfs specific conf files from image recipes. Create recipes for them and let image recipes depend on the them. 2) 'choose_volatiel_conf' is no more need, thus removed. Changes for Version 8: Rebase these patches against the latest master branch (after the systemd integration) The following changes since commit 37e025f6f9c410005e0f1dee0767e38eaec01cbd: bitbake: hob: Hob should display warnings generated during parsing (2013-01-21 19:05:31 +0000) are available in the git repository at: git://git.pokylinux.org/poky-contrib ChenQi/readonly-rootfs http://git.pokylinux.org/cgit.cgi/poky-contrib/log/?h=ChenQi/readonly-rootfs Chen Qi (6): sysvinit: add ROOTFS_READ_ONLY variable to rcS-default image.bbclass: add a hook funtion to support readonly rootfs core-image.bbclass: support read-only rootfs initscripts: support read-only rootfs volatile-conf-minimal: add recipe volatile-conf-sato: add recipe meta/classes/core-image.bbclass | 4 + meta/classes/image.bbclass | 18 ++ meta/recipes-core/images/core-image-minimal.bb | 3 + .../initscripts/initscripts-1.0/bootmisc.sh | 9 +- .../initscripts-1.0/populate-volatile.sh | 281 ++++++++++---------- .../initscripts/initscripts-1.0/volatiles | 1 + meta/recipes-core/initscripts/initscripts_1.0.bb | 2 +- .../files/volatiles-readonly-minimal | 8 + .../volatile-conf-minimal_1.0.bb | 15 ++ meta/recipes-core/sysvinit/sysvinit/rcS-default | 4 + meta/recipes-core/sysvinit/sysvinit_2.88dsf.bb | 2 +- meta/recipes-sato/images/core-image-sato.bb | 3 + .../files/volatiles-readonly-sato | 14 + .../volatile-conf-sato_1.0.bb | 15 ++ 14 files changed, 226 insertions(+), 153 deletions(-) create mode 100644 meta/recipes-core/readonly-volatile-conf/files/volatiles-readonly-minimal create mode 100644 meta/recipes-core/readonly-volatile-conf/volatile-conf-minimal_1.0.bb create mode 100644 meta/recipes-sato/readonly-volatile-conf/files/volatiles-readonly-sato create mode 100644 meta/recipes-sato/readonly-volatile-conf/volatile-conf-sato_1.0.bb -- 1.7.9.5