sudo lsblk
NAME   MAJ:MIN RM   SIZE RO TYPE MOUNTPOINT
loop0    7:0    0 251,3M  1 loop /snap/brave/136
loop1    7:1    0     4K  1 loop /snap/bare/5
loop2    7:2    0 164,8M  1 loop /snap/gnome-3-28-1804/161
loop3    7:3    0   2,5M  1 loop /snap/gnome-system-monitor/169
loop4    7:4    0  65,2M  1 loop /snap/gtk-common-themes/1519
loop5    7:5    0  61,9M  1 loop /snap/core20/1169
loop6    7:6    0   219M  1 loop /snap/gnome-3-34-1804/72
loop7    7:7    0  55,5M  1 loop /snap/core18/2246
loop8    7:8    0    51M  1 loop /snap/snap-store/547
loop9    7:9    0  55,4M  1 loop /snap/core18/2128
loop10   7:10   0   156M  1 loop /snap/keepassxc/1522
loop11   7:11   0  42,2M  1 loop /snap/snapd/13831
loop12   7:12   0 242,4M  1 loop /snap/gnome-3-38-2004/76
loop13   7:13   0  32,5M  1 loop /snap/snapd/13640
loop14   7:14   0  65,1M  1 loop /snap/gtk-common-themes/1515
loop15   7:15   0 139,6M  1 loop /snap/skype/190
sda      8:0    0 931,5G  0 disk
└─sda1   8:1    0 931,5G  0 part
sdb      8:16   0 111,8G  0 disk
└─sdb1   8:17   0 111,8G  0 part /
sr0     11:0    1  1024M  0 rom