kmod-scsi-core should be kmod-usb-core

kmod-fs-exfat should be kmod-fs-vfat

You probably also want to install samba36 server and luci-app-samba

I never got ntfs working and the word on the openwrt forum is sloooow. Again for now, if you can format this as FAT32 we can make sure the hardware works and deal with file systems and security after.

I think you should do a careful reread of the links I gave you.

update and repost the log