Disk device

If you are using a system with multiple disk devices you need to make sure of you are targeting the right disk, so start with listing your devices. By doing this you will determine which device you will target for the installation.

All your disk devices will be listed - including your removable devices.
Removable devices will have 1 in the RM column of the output.

List the devices using the command lsblk. Depending on your system your output may look like this

# lsblk
NAME  MAJ:MIN RM  SIZE RO TYPE MOUNTPOINT
loop0   7:0    0  52.5M  1 loop /run/miso/sfs/livefs
loop0   7:1    0 501.3M  1 loop /run/miso/sfs/rootfs
sda     8:0    0   128G  0 disk
sr0    11:0    1 617.4M  0 rom  /run/miso/bootmnt