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| author | Alex Deymo <deymo@google.com> | 2016-03-25 18:48:22 -0700 |
|---|---|---|
| committer | Alex Deymo <deymo@google.com> | 2016-04-12 19:35:01 -0700 |
| commit | 2e1de4f9f0457cd6117ddb22ffef72c8e2fbd4f3 (patch) | |
| tree | 3bae85341246871d28f9f843491439c6973de3dd /scripts/update_payload/format_utils_unittest.py | |
| parent | 961c25aba9898ac2e1629c745914e4c2f2a68301 (diff) | |
Mark block device as read-only before mounting.
Mounting a block device as read-only still allows the filesystem to
write to the block device, while keeping the user-facing filesystem
interface "read-only". This behavior will make dm-verity to fail after
reboot if any block is modified during postinstall.
This patch marks the block device as read-only before mounting it, and
marks them read-only or read-write before using them during the update.
Bug: 27859604
TEST=Added logging and deployed an update to brillo, devices are marked RO/RW as needed during a delta update.
(cherry picked from commit 5fb356cac8a87c62fa83005d99370aa2f8416064)
Change-Id: I8797c35514e1f38c2a0395cedc8e1dce53e28350
Diffstat (limited to 'scripts/update_payload/format_utils_unittest.py')
0 files changed, 0 insertions, 0 deletions