Ubuntu Installation Stuck at “update-grub”

I have gone through all the similar questions asked about this problem and tried the workarounds mentioned over there but nothing works. Like the ” ps | grep ‘dmsetup create’ ” workaround simply doesn’t work, because I don’t get any output displaying any PID (so I can’t kill any process), then the one regarding deleting 30_os-prober just deletes the file but has no effect on the installation. I am trying to do a clean install on a HDD, can anyone please help me solve this problem. [I am installing Ubuntu LTS 20.04.1 from a live USB]

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Author: Utkarsh Jha