Unable to install kali on laptop with ssd and hdd

[Htet Myet]

My HP laptop has ssd and hdd.
HDD data storage is 1TB and SSD data storage is 128GB.
I want to install kali linux on SSD and use HDD as data storage.
So can you give me a partition guide?
I have installed it 3 times
All three times did not work
There is also an error installing boot loader

[Anna121]

At first check if you are able to boot from your usb or not. Then try again.
If you fail then first part your HDD/SSD with ext4 keeping a partition for EFI as well. Then try... I hope it will resolve the problem.

[Htet Myet]

Now I created a partition for / boot in ssd