[OE-core] [PATCH V5 0/4] read-only rootfs support
Qi.Chen at windriver.com
Qi.Chen at windriver.com
Mon Dec 31 02:16:48 UTC 2012
From: Chen Qi <Qi.Chen at 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
The following changes since commit 90c0eb29f0b41e4ac2d3d17ebad7295c2ebdc02a:
rootfs_rpm.bbclass: remove debug code (2012-12-19 21:43:55 +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 (4):
sysvinit: add ROOTFS_READ_ONLY variable to rcS-default
image.bbclass: add two hook funtions to support read-only rootfs
core-image.bbclass: support read-only-rootfs image feature
initscripts: support read-only rootfs
meta/classes/core-image.bbclass | 7 +-
meta/classes/image.bbclass | 29 ++
.../initscripts/initscripts-1.0/bootmisc.sh | 9 +-
.../initscripts-1.0/populate-volatile.sh | 281 ++++++++++----------
.../initscripts/initscripts-1.0/volatiles | 1 +
.../initscripts-1.0/volatiles-readonly-minimal | 8 +
.../initscripts-1.0/volatiles-readonly-sato | 14 +
meta/recipes-core/initscripts/initscripts_1.0.bb | 11 +-
meta/recipes-core/sysvinit/sysvinit/rcS-default | 4 +
meta/recipes-core/sysvinit/sysvinit_2.88dsf.bb | 2 +-
10 files changed, 210 insertions(+), 156 deletions(-)
create mode 100644 meta/recipes-core/initscripts/initscripts-1.0/volatiles-readonly-minimal
create mode 100644 meta/recipes-core/initscripts/initscripts-1.0/volatiles-readonly-sato
--
1.7.9.5
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