$ cat /proc/partitions
major minor  #blocks  name

   7        0      91228 loop0
   7        1      56008 loop1
   7        2      56184 loop2
   7        3      91264 loop3
 259        0  244198584 nvme0n1
   8        0  488386584 sda
   8        1       1024 sda1
   8        2  488383488 sda2
   8       16 6836191232 sdb
   8       64 6836191232 sde
   8       80   39078144 sdf
   8       48 6836191232 sdd
   8       32 6836191232 sdc
  11        0    1048575 sr0