Comment # 1 on bug 1125669 from Neil Rickert

My system booted okay, but I did not like the way that the installer handled
that.

The initial proposal was to install boot into the MBR.  I did not want that, so
I set it to install to a partition.

I was surprised to notice that it:

did not set the option to make the partition active;
did not set the option to install generic boot code in the MBR;

Those are not a problem for me.  I prefer it that way, but I thought that it
made poor choices that would cause problems for many users.

After exiting from the booting section of install, the summary page indicated
that it would boot from "/dev/sda4".  This surprised me, because that is not
actually the boot partition.  Rather, it is the extended partition.  So I had
to go back into the booting section and directly specify that it should use
"/dev/sda5" (the actual boot partition).

Yes, I understand why it used the extended partition.  But the description it
gave in the booting section seemed misleading.

I should note that it booted the way that I wanted -- chain loading from
another linux (from Leap 15.0).