root@bootstrap:~# lsblk -t
NAME               ALIGNMENT MIN-IO     OPT-IO PHY-SEC LOG-SEC ROTA SCHED    RQ-SIZE
sda                        0    512 4294966784     512     512    1 deadline     128
|-sda1                     0    512 4294966784     512     512    1 deadline     128
|-sda2                     0    512 4294966784     512     512    1 deadline     128
|-sda3                     0    512 4294966784     512     512    1 deadline     128
|-sda4                     0    512 4294966784     512     512    1 deadline     128
| `-os-root (dm-0)         0    512 4294966784     512     512    1              128
|-sda5                     0    512 4294966784     512     512    1 deadline     128
|-sda6                     0    512 4294966784     512     512    1 deadline     128
|-sda7                     0    512 4294966784     512     512    1 deadline     128
|-sda8                     0    512 4294966784     512     512    1 deadline     128
`-sda9                     0    512 4294966784     512     512    1 deadline     128
loop0                      0    512          0     512     512    1              128