BTW, do you know of the differences between r5.metal and r5.24xlarge?
Per the specs they seem to be the same as in cpu/ram/nic/_nvme_ storage, but differ in baremetal vs nitro hypervisor?
The reason I ask is because downgrading from 5.4.0-1056-aws to 4.15.0-1113-aws worked/booted fine on r5.24xlarge, differently from r5.metal.
I got to test it while looking for a similar instance type that had serial console support, but it didn't repro the problem, actually.
BTW, do you know of the differences between r5.metal and r5.24xlarge?
Per the specs they seem to be the same as in cpu/ram/nic/_nvme_ storage,
but differ in baremetal vs nitro hypervisor?
The reason I ask is because downgrading from 5.4.0-1056-aws to 4.15.0-1113-aws
worked/booted fine on r5.24xlarge, differently from r5.metal.
I got to test it while looking for a similar instance type that had
serial console support, but it didn't repro the problem, actually.