Hello Anand,
the SX6012F I have appears to be a special version for EMC²
It has a special BOOT software, which lets it behave like an unmanaged SX6005.
There is no MLNX-OS installed, nor is it installable.
I have been told by the German Mellanox support that I will need the standard
Mellanox BOOT software, so that I may install the MLNX-OS, which in turn will
install the switch software.
I could send you the screen dump from the BOOT sequence, if that would help.
Cheers
speedy