[CentOS] Centos 7 Boot Partition

>> What size is recommended for the /boot partition?  After doing a fresh
>> install and lengthy backup restore I realized I only made it 200M.  Is
>> this going to be a problem?

>
> Mine was about 500 MB and I removed some kernels because I got a warning the
> partition was getting full.
>
> With only two kernels installed, 182 MB are used. I would suggest 1 GB and I
> believe that is what CentOS 7.3 will do by default.

Can I just change yum.conf with the setting installonly_limit=2 to
limit kernels installed too two?