Error after upgrading from V 4.17 to 5.11

Hi,

I have a RB411 and after upgrading from 4.17 to 5.11, when login Serial, I get the following error:

Kernel Panic– not syncing: VFS: unable to mount root FS on unknom-blok (0.0)

I can do?

Hi,

See previous - http://forum.mikrotik.com/t/router-has-no-software-key/52693/1
I’d go the same route.

Rgds,
Mark.