I have different filesystems (ext,ntfs,fat32,etc) on each disks on “from”. Sorry, I have misunderstood USB2, so correctly is any kinds of disks, f.ex. USB2 was SanDisk 64 GB. Next one was Samsung 500 GB on IDE (explicitly not USB2), next one was Toshiba 500 GB on SATA (also not USB2), and so on. But this is the same way on previous comments.
USB1 = Try Ubuntu
USB2/IDE/SCSI/SATA = /mnt/ (from) - this is different from disk to disk
USB3 = /media/ (to) - external 4TB
This is Toshiba 500 GB on SATA (“from”/“USB2”)
E.g. fdisk -l and lsblk -o:
Device Type Fstype
/dev/sdg1 Linux ext4
/dev/sdg2 Extended
/dev/sdg5 Linux ext4
/dev/sdg6 Linux swap / Solaris swap