From: Chen Qi <qi.c...@windriver.com> 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. The following changes since commit 53cc748b93e8af584557d6db5309c3e955182c5c: linux-libc-headers: fix headers install in long path name environments (2013-01-10 23:53:51 +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 | 5 +- meta/classes/image.bbclass | 16 +- 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 | 5 +- .../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, 224 insertions(+), 157 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 _______________________________________________ Openembedded-core mailing list Openembedded-core@lists.openembedded.org http://lists.linuxtogo.org/cgi-bin/mailman/listinfo/openembedded-core
