1，先将iso镜像转为dmg格式
hdiutil convert -format UDRW -o ubuntu-16.04-desktop-amd64.dmg ubuntu-16.04-desktop-amd64.iso
voidcat:catHHD zhigangyang$ hdiutil convert -format UDRW -o ubuntu-16.04-desktop-amd64.dmg ubuntu-16.04-desktop-amd64.iso
正在读取Driver Descriptor Map（DDM：0）…
正在读取Ubuntu 16.04 LTS amd64 （Apple_ISO：1）…
正在读取Apple（Apple_partition_map：2）…
正在读取Ubuntu 16.04 LTS amd64 （Apple_ISO：3）…
..............................................................................
正在读取EFI（Apple_HFS：4）…
..............................................................................
正在读取Ubuntu 16.04 LTS amd64 （Apple_ISO：5）…
..............................................................................
已耗时： 1m 1.445s
速度：23.1M 字节/秒
节省：0.0%
created: /Volumes/mac/catHHD/ubuntu-16.04-desktop-amd64.dmg
2,看下U盘的下载节点
#: TYPE NAME SIZE IDENTIFIER
0: GUID_partition_scheme *120.0 GB disk0
1: EFI EFI 209.7 MB disk0s1
2: Apple_CoreStorage ssd 119.2 GB disk0s2
3: Apple_Boot Recovery HD 650.0 MB disk0s3
/dev/disk1 (internal, physical):
#: TYPE NAME SIZE IDENTIFIER
0: GUID_partition_scheme *500.1 GB disk1
1: EFI EFI 209.7 MB disk1s1
2: Apple_CoreStorage mac 499.2 GB disk1s2
3: Apple_Boot Recovery HD 650.0 MB disk1s3
/dev/disk2 (internal, virtual):
#: TYPE NAME SIZE IDENTIFIER
0: ssd +118.8 GB disk2
Logical Volume on disk0s2
CAB976A0-78AD-45CE-99BF-C471A6FDB320
Unlocked Encrypted
/dev/disk3 (internal, virtual):
#: TYPE NAME SIZE IDENTIFIER
0: mac +498.9 GB disk3
Logical Volume on disk1s2
41D876ED-E55E-41C8-9DB0-BCA575DA35EB
Unencrypted
/dev/disk4 (external, physical):
#: TYPE NAME SIZE IDENTIFIER
0: FDisk_partition_scheme *30.8 GB disk4
1: Windows_FAT_32 NO NAME 30.8 GB disk4s1
我这里是/dev/disk4 (external, physical):
卸载掉U盘
diskutil umountDisk /dev/disk4
voidcat:catHHD zhigangyang$ diskutil umountDisk /dev/disk4
Unmount of all volumes on disk4 was successful
3,使用dd命令写入
sudo dd if=ubuntu-16.04-desktop-amd64.dmg of=/dev/disk4亲测ok
发表回复