Using cp instead of mv during the restore step resulted in double the
amount of free space and inodes being used.
For example, a nano arm64 opengapps install uses around 500M. But during
a backup/restore process when the Updater is used, it temporarily uses
1G on the other slot. That causes failed updates on devices that
don't have that much free space on the system partition.
Change-Id: I57ba2e0f52d328d4ff91d47a3db45f47bb8402af
* A/B OTA devices wont run backuptools in recovery (because they don't
go in to recovery to do an OTA). In these cases let's use a modified
version to backup/restore from within android upon postinstall.
* Add backuptool_postinstall.sh which will be run prior to the normal
postinstall script in order to backup/restore via addon.d scripts.
* This needs to be done in such a manner because we need /postinstall
mounted rw instead of the ro with context= options which are used for
the normal postinstall (dexopt) script.
Change-Id: I51511870634dd1ec5388adafddb446f95cc5a950
razorloves
Jan Altensen
Michael Bestas
Rashed Abdel-Tawab
Luca Stefani
Dan Pasanen