Comment 14 for bug 1451565

I have seen this most frequently when doing the following steps:
1. make the system writable
2. sudo vim.tiny /etc/system-image/channel.ini
3. Change the image number in the lower lines to be back 10 images
4. remove writable and rm .local/share/ubuntu-push-client/level.db
5. reboot
6. upgrade post upgrade check /var/log

1. Flash the latest rc-proposed to the device under test
2. run some tests
3. make the system writeable
4. add a silo
5. reflash the same image to the same device (we use bootstrap from fastboot for flashing purposes)