Created a new flavor from Openstack today;
then took the newly created flavor;
installed Rocky Linux, and
found the interface to start the installation,
whether you press Enter to select the installation or
choose another mode of installation,
otherwise: no response ,
or: loop countdown for sixty seconds.
It's very strange,
I searched for a long time on the Internet,
but there is no conclusion.
Finally, I took a serious look
at one of the hardware detection interfaces
and found that the allocated memory turned out to be 16M.
Well, this 16M cannot meet
the basic needs of Rocky Linux.
When Flavor was created, the wrong memory size was set!
I thought that 16G must be enough, but who knows that the unit is M.
Here I want to complain about the interface of Openstack,
can you increase the unit of memory from M to G.
So as not to consciously acquiesce that this unit is G.
resulting in this error.
Because memory is not a tight resource now,
and when more or less memory is allocated,
it will be allocated according to G.