After attempting to install Ubuntu 24.04 on my laptop, I encountered issues with booting the system. Now, even after installation, I cannot access my computer. The screen stays black and not even USB devices work. My 4TB SSD is divided into two partitions, one with Windows (which disappeared) and another with Ubuntu 22.04 (which no longer responds). Upon booting, the screen hangs with the message 'Loading initial ramdisk...' and the Grub displays both the new Ubuntu and the old one, even after requesting overwrite. Any suggestions to resolve this booting issue and regain access to the system?
Notebook specifications:
RTX 3080 Ti GPU 64GB RAM Intel Core i7 12th generation processor
