I have Acer Extensa 215-52. I want to dual boot it with ubuntu. But my harddisk partitions are not showing while installing ubuntu 18. Only bootable USB is showing as /dev/sda. No Other media is showing. It should show all partitions from hard disk. I have made 200GB unallocated space through disk management.
I have changed the SATA mode to AHCI also.
secure boot disabled
fast boot disabled
USB created through RUFUS with GPT partition.
Do I need to change anything else in BIOS or other settings?
Please let me know its urgent.
Thread was edited to add the model name to the title and to edit personal information