I found 30_os_prober.bak in /etc/grub.d. I compared the two & deleted 30_os_prober & rennaming 30_os_prober.bak. Installation then proceeded.
Mark as solved.
I found 30_os_prober.bak in /etc/grub.d. I compared the two & deleted 30_os_prober & rennaming 30_os_prober.bak. Installation then proceeded.
Mark as solved.