Arrange to delete the overlayfs backing when a specified partition
has been flashed.
Test: manual
Bug: 109821005
Bug: 117605276
Change-Id: I1c6a0341c6cd2ecfbb7c71bec5679a74d579aadd
The purpose of this code was to support preserving partitions across a
flashall operation. Since we are not supporting persistent read-write
partitions, this merging code is effectively useless - it is preserving
only partitions that will be deleted.
Additionally, this code does not merge partition group changes, since
doing so accurately is difficult. Partition size changes aren't sent
until after update-super resolves, so a valid re-grouping could be
rejected during update-super if the existing partitions are too big.
This patch removes the update-super merging code until a use case comes
along and we can properly evaluate how it should work.
Bug: N/A
Test: fastboot flashall
Change-Id: I1d622b23dabdf031897be9de49f59fc8cf3caf3b
Bug: 78793464
Test: fastboot flashall
Sparse images with CRC are not supported by the Android build
system and hence the calculated CRC is unused.
Change-Id: Ia48b2f7e29f2adea26d185c5a8f2337c4cbe6dcb
This change introduces an "update-super" command to the fastboot
protocol. Unlike the "flash" command, which copies raw or sparse data to
a partition, the "update-super" command requires the data to be a super
image generated by lpmake.
If the super partition is not yet formatted (or is corrupt), then it
will be formatted using the given image. Otherwise, "update-super" will
preserve the existing partition layout, and only ensure that logical
partition entries exist for all the new partitions in the given image.
All new partitions added this way will have a zero size, and it is the
host's responsibility to size them as needed afterwards with the
"resize-logical-partition" command.
In addition, the "update-super" command supports a "wipe" argument,
which will force the super partition to be reformatted with the given
image, overwriting any existing partition tables.
Bug: 78793464
Test: fastboot flashall with a super partition
Change-Id: If37d839a03e396e11b6c08a9c32984106613d1dc
When flashing logical partitions, we read the "super" partition metadata
corresponding to the current slot. We then temporarily create a
device-mapper device for that partition, and immediately destroy the
device after all operations are complete. We do not mount partitions
ahead of time, or keep them mounted, because a fastboot operation may
change the layout of the logical partition table (or change which slot
is current).
Bug: 78793464
Test: fastboot flash a logical partition under "super"
Change-Id: Id2a61d3592decabeebfd283c4fd6e6cbe576a18c
Treehugger Robot