Quote:
Originally Posted by mlangdn
It could possibly point to an unsupported cpu.
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While that is theoretically possible, that is usually too literal an interpretation of the Illegal instruction error.
It is not that easy to get Centos installed on a system with an unsupported CPU.
There is far too little information in the original post to make a useful guess about the problem, maybe too little to even ask constructive questions to get the info necessary to guess the real problem.
What kind of a system is it (basic hardware info)? How did it get to its current condition (fresh install of Centos; upgrade from a previous version; sudden behavior change in a previously working system, or what)?
That still won't be enough to enable a good guess at the problem, so hopefully the OP knows a bit more about what is unusual in the way the system reached its current condition to offer more relevant info.