This is the design: https://wiki.yoctoproject.org/wiki/Run_postinst_during_rootfs_generation
I think for the feature, it does not need any QA since it will be integrated into build.
I am going to delay this feature to M3, because Dexuan is working on another M3 item in M2 -- deployment for "build appliance".
We probably don't have time to make it in v1.2, since Dexuan is working on more important task. And we don't have more resource to offload from the PRC side.
A first batch of patches were sent for review on the mailing list. These patches add the possibility of running certain postinst scriptlets, once, on host. Also, moved the gtk icon cache generation on the host.
The first round got some comments and needs some work, since we are late in 1.3, this will be pushed to 1.4.
The patches got, finally, in. So we can close this bug. I will open a bug for each remaining packages which have the postinstall postponed to first boot so we can deal with them one by one. For core-image-sato, for example, there are approx 6 packages postponed.
switched to verified on master branch