The error I get is 'The installer needs to remove operating system files from install target, but was unable to do so. The install cannot continue'.
That's when I set sda2 as /boot don't format (as formatted by GPartEd), then GRB install to /dev/sda2.
I exitted the installer, and typed 'fdisk -l' in terminal and again sda has disappeared, and typing 'dmesg' shows I/O error messages for sda.
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