- df -h 找到u盘所在的盘符如下:
/dev/disk7s1 14Gi 2.8Mi 14Gi 1% 90 471966 0% /Volumes/KINGSTON
盘符为:/dev/disk7s1
diskutil list
/dev/disk7
2.卸载u盘 (如果你的u盘被分成多个分区了,你需要全部umount)
sudo umount /dev/disk7s1
umount(/Volumes/KINGSTON): Resource busy -- try 'diskutil unmount'
sudo diskutil umount /dev/disk7s1
3.刻录
sudo dd if=/Users/mac1/Downloads/ubuntu-16.04.4-server-amd64.iso of=/dev/disk7 bs=1m
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