When working with linux and disks you are always searching for tools to see/expose partition/volumes. I will put here all stuff related to disk management that I use.
sudo df -a : report usage of disks attached to computer
sudo blkid : give all block device on computer
fdisk [-u] [-b sectorsize] [-C cyls] [-H heads] [-S sects] device
sudo fdisk -l : list all partitions from /proc/partitions
sudo fdisk -l /dev/sda : list partitions from /dev/sad
fdisk /dev/sda : enter in command mode to work on /dev/sda
m – print help
p – print the partition table
n – create a new partition
d – delete a partition
q – quit without saving changes
w – write the new partition table and exit
mkfs.<desired FS format> /dev/partition_to_format
mkfs.ext3 /dev/sda1 : create FS on sda1 with ext3 format.
mount : show all mounted FS
mount -t <type> /src /dest : to mount a FS from src to dest