I can also confirm this on the pre-RC i386 image, but it's not consistent! Three out of four installs worked as expected, only the fourth failed with the I/O errors.
But also simply removing the disc and pressing enter continues as though all is well.
I can also confirm this on the pre-RC i386 image, but it's not consistent! Three out of four installs worked as expected, only the fourth failed with the I/O errors.
But also simply removing the disc and pressing enter continues as though all is well.
So IMO it's largely "cosmetic".