╰─➤ diskutil list
/dev/disk2 (external, physical):
#: TYPE NAME SIZE IDENTIFIER
0: FDisk_partition_scheme *30.9 GB disk2
1: DOS_FAT_32 KINGSTON 30.9 GB disk2s1
╰─➤ diskutil unmountDisk /dev/disk2
Unmount of all volumes on disk2 was successful
- 大概7分钟完成
╰─➤ sudo dd if=/home/ubuntu-18.04.4-desktop-amd64.iso of=/dev/disk2 bs=1m
Password:
++++2028+1 records in
2028+1 records out
2126544896 bytes transferred in 399.609755 secs (5321554 bytes/sec)
- 推出U盘
参考：
1.在 MacOS 上制作 CentOS 8 系统的 USB 安装盘