What's the issue?

> Plug in drives.

> Boot cpu.

> lsblk to see block devices.

> make gpt partition on the new drive

> make ext4 file system on drive

> create directory that will be the mount point.

> sudo blkid to get device blkid

> edit fstab (/etc/fstab) to add blkid, set mount point, set files system type, set other flags, e.g. defaults,noatime,nofail, set boot priority, etc. Save it.

> sudo mount -a