I have HHD disk from my old laptop with 2 ext4 and swap partitions. I put it into the case and plug in it. But I wasn't able to find it in /dev but after rebooting of my Kubuntu I found /dev/sdc (I have 2 ssd disks in system). But when I tried to execute
sudo mount -t ext4 /dev/sdc /media/oldhdd/
I get the error:
mount: /media/oldhdd: wrong fs type, bad option, bad superblock on /dev/sdc, missing codepage or helper program, or other error.
I think it happens due to hdd has a few partitions. Please help me to mount my hdd.