sdd1 ist die besagte Platte.
AME MAJ:MIN RM SIZE RO TYPE MOUNTPOINT
loop0 7:0 0 55,5M 1 loop /snap/core18/1988
loop1 7:1 0 55,4M 1 loop /snap/core18/1997
loop2 7:2 0 61,7M 1 loop /snap/core20/975
loop3 7:3 0 61,6M 1 loop /snap/core20/904
loop4 7:4 0 217,9M 1 loop /snap/gnome-3-34-1804/60
loop5 7:5 0 219M 1 loop /snap/gnome-3-34-1804/66
loop6 7:6 0 64,8M 1 loop /snap/gtk-common-themes/1514
loop7 7:7 0 164,8M 1 loop /snap/shortwave/1
loop8 7:8 0 32,3M 1 loop /snap/snapd/11588
loop9 7:9 0 16K 1 loop /snap/software-boutique/54
loop10 7:10 0 15,2M 1 loop /snap/ubuntu-mate-welcome/617
loop11 7:11 0 32,3M 1 loop /snap/snapd/11402
loop12 7:12 0 51M 1 loop /snap/snap-store/518
loop13 7:13 0 65,1M 1 loop /snap/gtk-common-themes/1515
loop14 7:14 0 15,2M 1 loop /snap/ubuntu-mate-welcome/622
loop15 7:15 0 0B 0 loop
sda 8:0 0 931,5G 0 disk
├─sda1 8:1 0 47,7G 0 part /
├─sda2 8:2 0 1K 0 part
├─sda5 8:5 0 19,1G 0 part [SWAP]
└─sda6 8:6 0 864,8G 0 part /home
sdb 8:16 0 4,5T 0 disk
└─sdb1 8:17 0 4,5T 0 part /media/erwin/Sicherungen2
sdc 8:32 0 1,8T 0 disk
└─sdc1 8:33 0 1,8T 0 part /media/erwin/Sicherungen1
sdd 8:48 0 4,5T 0 disk
└─sdd1 8:49 0 4,5T 0 part /media/erwin/20C6C4AA59CD6481
sr0 11:0 1 1024M 0 rom