Also its an error in Sailfish wiki

The Wiki says:

Step 3 - Flash the OpenMode!
(Optional) Remove the modified kernel warning before installing OpenMode.
Boot up Harmattan
Enable developer mode
Open terminal and type
devel-su
rootme # root's password
disclaimer-cal remove View-openmode

This will cause Problems in harmattan later.

See in Ubiboot Thread

To correctly flash the device for Open Mode, you need to ensure that the Aegis keys and credentials on the device are created with Open Mode keys, not with the default Closed Mode keys.

The Aegis key generation happens the first time a device boots after a clean flash, before user is presented with the UI of the device. Hence, it is important to make sure that the device boots up in Open Mode the first time after flashing. The way to accomplish this is what I call back-to-back flashing.

Someone can fix the wiki?

By the way, i will vote for a Open Mode wiki to collect all the Limitations, Problems and Solutions for Open mode