Getting signature error to install Linux/Ubuntu in UCS 220 M4 server

[pblitdnoc]

I am trying to install Ubuntu on my M4 server. But every time i getting error "invalid signature, secure boot enabled".

I tried to disable secure boot but it's not possible according to document. is there any possible solution to use the server?

CIMC version - 4.0(2h)

BIOS version - 3.0.4g

[Kirk J]

What's the actual PID of the server?  Are you trying to retask a security appliance ?

If so, those are configured so they can't be easily modified from the original config, otherwise if it was easy, it would be a major security concern.

Kirk...

[pblitdnoc]

@Kirk J  yes, it was an appliance (TG). But right now have no uses. Having good resource, I was to use this another purpose.  Have any way to downgrade the the CIMC version? I tried to do so with 4.0.2g/c but failed. getting error like "incompatible image"