先到树莓派的官方网站去下载一个系统镜像
下载完成后得到一个img镜像:2017-09-07-raspbian-stretch.img
插入SD卡,用df命令查看当前已挂载的卷:1
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8tusmdeMacBook-Pro-2:JavaVirtualMachines tusm$ df -h
Filesystem Size Used Avail Capacity iused ifree %iused Mounted on
/dev/disk1s1 238Gi 182Gi 52Gi 78% 3875345 9223372036850900462 0% /
devfs 195Ki 195Ki 0Bi 100% 675 0 100% /dev
/dev/disk1s4 238Gi 3.0Gi 52Gi 6% 3 9223372036854775804 0% /private/var/vm
map -hosts 0Bi 0Bi 0Bi 100% 0 0 100% /net
map auto_home 0Bi 0Bi 0Bi 100% 0 0 100% /home
/dev/disk2s1 60Gi 8.6Mi 60Gi 1% 69 488354 0% /Volumes/未命名
对比Size和Name可以找到SD卡的分区在系统里对应的设备文件(这里是/dev/disk2s1),如果你有多个分区,可能还会有disk1s1之类的。使用diskutil unmount将这些分区卸载:1
2tusmdeMacBook-Pro-2:JavaVirtualMachines tusm$ diskutil unmount /dev/disk2s1
Volume 未命名 on disk2s1 unmounted
通过diskutil list来确认设备:1
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20tusmdeMacBook-Pro-2:JavaVirtualMachines tusm$ diskutil list
/dev/disk0 (internal, physical):
#: TYPE NAME SIZE IDENTIFIER
0: GUID_partition_scheme *256.1 GB disk0
1: EFI EFI 209.7 MB disk0s1
2: Apple_APFS Container disk1 255.9 GB disk0s2
/dev/disk1 (synthesized):
#: TYPE NAME SIZE IDENTIFIER
0: APFS Container Scheme - +255.9 GB disk1
Physical Store disk0s2
1: APFS Volume mac os 195.8 GB disk1s1
2: APFS Volume Preboot 21.0 MB disk1s2
3: APFS Volume Recovery 518.1 MB disk1s3
4: APFS Volume VM 3.2 GB disk1s4
/dev/disk2 (external, physical):
#: TYPE NAME SIZE IDENTIFIER
0: FDisk_partition_scheme *64.0 GB disk2
1: Windows_NTFS 未命名 64.0 GB disk2s1
切换到镜像目录文件夹如:1
tusmdeMacBook-Pro-2:JavaVirtualMachines tusm$ cd ~/Downloads/
使用dd命令将系统镜像写入,需要特别特别注意disk后的数字,不能搞错!
(说明:/dev/disk2s1是分区,/dev/disk2是块设备,/dev/rdisk2是原始字符设备)1
tusmdeMacBook-Pro-2:Downloads tusm$ sudo dd bs=4m if=2017-09-07-raspbian-stretch.img of=/dev/rdisk2
经过几分钟的等待,出现下面的提示,说明SD卡刷好了:1
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31172+1 records in
1172+1 records out
4916019200 bytes transferred in 642.569513 secs (7650564 bytes/sec)
用diskutil unmountDisk卸载设备:1
2tusmdeMacBook-Pro-2:Downloads tusm$ sudo diskutil unmountDisk /dev/disk2
Unmount of all volumes on disk2 was successful
现在就可以拔下SD卡,插到树莓派上启动系统了。第一次启动会进入Raspi-config,后面配置方法同其他平台一样,参考使用raspi-config配置树莓派即可。