mac 制作 ios 的 usb 启动盘

1. 在终端下,将ISO镜像转换为DMG格式:

wwj-mac:~ wwj$ hdiutil convert -format UDRW -o ./0000.img Desktop/iso/Fedora-Server-DVD-x86_64-22.iso
正在读取Driver Descriptor Map(DDM:0)…
正在读取Fedora-22-x86_64                (Apple_ISO:1)…
正在读取Apple(Apple_partition_map:2)…
正在读取Fedora-22-x86_64                (Apple_ISO:3)…
正在读取EFI(Apple_HFS:4)…
正在读取EFI(Apple_HFS:5)…
.
正在读取Fedora-22-x86_64                (Apple_ISO:6)…
...............................................................................................................................................................................
经过时间:11.437s
速度:184.9M 字节/秒
节省:0.0%
created: /Users/wwj/0000.img.dmg


2. 插入USB盘,然后在终端下,查找该盘的设备名:

wwj-mac:~ wwj$ diskutil list
/dev/disk0
   #:                       TYPE NAME                    SIZE       IDENTIFIER
   0:      GUID_partition_scheme                        *121.3 GB   disk0
   1:                        EFI EFI                     209.7 MB   disk0s1
   2:          Apple_CoreStorage                         120.5 GB   disk0s2
   3:                 Apple_Boot Recovery HD             650.0 MB   disk0s3
/dev/disk1
   #:                       TYPE NAME                    SIZE       IDENTIFIER
   0:                  Apple_HFS Macintosh HD           *120.1 GB   disk1
                                 Logical Volume on disk0s2
                                 F620E004-804F-4287-BC59-77F5F483D349
                                 Unencrypted
/dev/disk2
   #:                       TYPE NAME                    SIZE       IDENTIFIER
   0:                                                   *8.0 GB     disk2

以上显示该盘的设备名是: /dev/disk2


3. 卸载USB盘(插入时已经自动挂载了),但是不要推出。在终端下:

 wwj-mac:~ wwj$diskutil umountDisk /dev/disk2
 Unmount of all volumes on disk1 was successful


4. 镜像上面生成的DMG内容到USB盘,在终端下:

wwj-mac:~ wwj$  pv ./0000.img.dmg | sudo dd of=/dev/rdisk2 bs=1m
2.06GiB 0:08:32 [4.12MiB/s] [========================================>] 100%
0+33828 records in
0+33828 records out
2216890368 bytes transferred in 512.927531 secs (4322034 bytes/sec)

5.  推出USB盘。

wwj-mac:~ wwj$ diskutil eject /dev/disk1



转载于:

http://borgstrom.ca/2010/10/14/os-x-bootable-usb.html

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