#11662 - wic should mount /boot

Hi,

This patchset adds /boot to the /etc/fstab of root partition, making it mounted on boot. It also fixes reporting and testing issues caused by this change.

The patchset also fixes long standing bug: wic updated fstab inplace in rootfs directory. This causes other tasks working with rootfs directory to produce incorrect results or crash. This is fixed by hadlinking rootfs content to the temporary directory before updating fstab.

This approach caused do_image_tar to fail with the error "file changed as we read it" as hardlinking changes files ctime. In order to solve this we had to modify do_image_tar to ignore file changes.

Changes in v2: squashed patches by reviewer's request Changes in v3: unlink /etc/fstab in rootfs copy before updating it Changes in v4: used 'cp -a' instead of copyhardlinktree to avoid
do_image_tar failure due to changed ctime
Changes in v5: back to hardlinking. ignored tar exit code 1.

The following changes since commit b73f5e088a543775a2a94b60302f750edfffbd10:

wic-tools: add dependency to e2fsprogs-native (2017-07-27 16:07:26 +0300)

are available in the git repository at:

git://git.yoctoproject.org/poky-contrib ed/wip
http://git.yoctoproject.org/cgit.cgi/poky-contrib/log/?h=ed/wip

Ed Bartosh (7):
image_types.bbclass: ignore tar exit code 1
wic: copy rootfs directory before changing fstab
wic: use absolute paths in rootfs plugin
wic: rootfs: fix rootfs path reporting
wic: rootfs: make copied rootfs unique
wic: add /boot mount point to fstab by default
oe-selftest: wic: fix test_quemu

 meta/classes/image_types.bbclass         |  3 ++-
 meta/lib/oeqa/selftest/cases/wic.py      |  2 +-
 scripts/lib/wic/plugins/imager/direct.py | 26 ++++++++++++++++----------
 scripts/lib/wic/plugins/source/rootfs.py | 16 +++++++---------
 4 files changed, 26 insertions(+), 21 deletions(-)

2.1.4