mac下如何使用dd命令写入u盘镜像

本篇文章为大家展示了mac下如何使用dd命令写入u盘镜像，内容简明扼要并且容易理解，绝对能使你眼前一亮，通过这篇文章的详细介绍希望你能有所收获。

查询u盘位置

zylMBP:Downloads zhangyalin$ diskutil list/dev/disk0 (internal):   #:                       TYPE NAME                    SIZE       IDENTIFIER   0:      GUID_partition_scheme                         500.3 GB   disk0   1:                        EFI EFI                     314.6 MB   disk0s1   2:                 Apple_APFS Container disk1         499.3 GB   disk0s2/dev/disk1 (synthesized):   #:                       TYPE NAME                    SIZE       IDENTIFIER   0:      APFS Container Scheme -                      +499.3 GB   disk1                                 Physical Store disk0s2   1:                APFS Volume Macintosh HD            469.8 GB   disk1s1   2:                APFS Volume Preboot                 45.6 MB    disk1s2   3:                APFS Volume Recovery                517.0 MB   disk1s3   4:                APFS Volume VM                      1.1 GB     disk1s4/dev/disk2 (external, physical):   #:                       TYPE NAME                    SIZE       IDENTIFIER   0:     FDisk_partition_scheme                        *7.8 GB     disk2   1:                 DOS_FAT_32 KS                      7.8 GB     disk2s1

卸载u盘

zylMBP:Downloads zhangyalin$ diskutil unmountDisk /dev/disk2Unmount of all volumes on disk2 was successful

写入镜像

zylMBP:Downloads zhangyalin$ sudo dd if=./openwrt-18.06.2-x86-generic-combined-ext4.img of=/dev/disk2Password:558080+0 records in558080+0 records out285736960 bytes transferred in 609.099414 secs (469114 bytes/sec)

推出u盘

zylMBP:Downloads zhangyalin$ diskutil eject /dev/disk2Disk /dev/disk2 ejected

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