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ubuntu@ubuntu:~$ sudo parted /dev/nvme0n1 unit MiB print
Model: PC711 NVMe SK hynix 512GB (nvme)
Disk /dev/nvme0n1: 488386MiB
Sector size (logical/physical): 512B/512B
Partition Table: gpt
Disk Flags: 

Number  Start     End        Size       File system  Name  Flags
 1      1.00MiB   257MiB     256MiB                  ESP   boot, esp
 2      257MiB    41217MiB   40960MiB                swap  swap
 3      41217MiB  488386MiB  447169MiB               LFS