OSMC scan/repair from dual boot partition

Wondering if its possible to scan and/or repair OSMC from a dual boot partition?
I have OSMC, Raspian desktop and Retropie on bootable partitions (Pi 3 B+).

Today unfortunately OSMC failed to boot after a power cut.
I am hoping i could scan and repair from Raspbian desktop.

If you can mount the boot partition then this may fix the issue…

I forgot about PINN.
Tries to fix through there but still nothing.
Opted to re-install instead.