Steps to disable rootfs verification:

1. Log in

2. Press ctl+alt+t to open a terminal

3. Type in shell and hit enter

4. Confirm that the yellow crosh prompt is now a green chronos@localhost prompt

5. Disable rootfs verification:

sudo disable_verity

6. Reboot your device:

sudo reboot

7. Now you can log in and proceed with rootfs edits as you normally would. You will still need to remount root as read/write:

sudo mount -o rw,remount /

Home-Edition Users:

For home edition users and users whose machines are un-managed you can halt the updates via command line or by blocking the following urls in your filtering device/firewall :

Update Server: cloudready-paid-update-server-2.neverware.com

Update Storage URLs: cloudready-paid-update-storage.neverware.com

Legacy Update Server: cloudready-update-server-2015-03-12.neverware.com

Home Edition Update Server: cloudready-free-update-server-2.neverware.com