cat /proc/partitions | more
major minor  #blocks  name

   7        0      13300 loop0
   7        1       1824 loop1
   7        2      35472 loop2
   7        3     131808 loop3
   7        4     144260 loop4
   7        5      13300 loop5
   7        6     231924 loop6
   7        7       3796 loop7
   8        0  488386584 sda
   8        1     524288 sda1
   8        2  487860224 sda2
   7        8       2376 loop8
   7        9     176196 loop9
   7       10      14848 loop10
   7       11       2300 loop11
   7       12      14840 loop12
   7       13       3788 loop13
   7       14      88964 loop14
   7       15      90004 loop15
   7       16      43148 loop16
➜  ~ sudo lsblk
NAME   MAJ:MIN RM   SIZE RO TYPE MOUNTPOINT
loop0    7:0    0    13M  1 loop /snap/gnome-characters/103
loop1    7:1    0   1.8M  1 loop /snap/quadrapassel/44
loop2    7:2    0  34.7M  1 loop /snap/gtk-common-themes/319
loop3    7:3    0 128.7M  1 loop /snap/postman/62
loop4    7:4    0 140.9M  1 loop /snap/gnome-3-26-1604/70
loop5    7:5    0    13M  1 loop /snap/gnome-characters/124
loop6    7:6    0 226.5M  1 loop /snap/pycharm-community/85
loop7    7:7    0   3.7M  1 loop /snap/gnome-system-monitor/51
loop8    7:8    0   2.3M  1 loop /snap/gnome-calculator/180
loop9    7:9    0 172.1M  1 loop /snap/spotify/21
loop10   7:10   0  14.5M  1 loop /snap/gnome-logs/43
loop11   7:11   0   2.3M  1 loop /snap/gnome-calculator/238
loop12   7:12   0  14.5M  1 loop /snap/gnome-logs/37
loop13   7:13   0   3.7M  1 loop /snap/gnome-system-monitor/57
loop14   7:14   0  86.9M  1 loop /snap/core/4917
loop15   7:15   0  87.9M  1 loop /snap/core/5328
loop16   7:16   0  42.1M  1 loop /snap/gtk-common-themes/701
sda      8:0    0 465.8G  0 disk
├─sda1   8:1    0   512M  0 part /boot/efi
└─sda2   8:2    0 465.3G  0 part /