MacOS 如何刻录U盘装系统

MacOS 如何刻录U盘装系统

1. 确认U盘挂载分区

% diskutil list
/dev/disk0 (internal, physical):
   #:                       TYPE NAME                    SIZE       IDENTIFIER
   0:      GUID_partition_scheme                        *1.0 TB     disk0
   1:             Apple_APFS_ISC Container disk1         524.3 MB   disk0s1
   2:                 Apple_APFS Container disk3         994.7 GB   disk0s2
   3:        Apple_APFS_Recovery Container disk2         5.4 GB     disk0s3

/dev/disk3 (synthesized):
   #:                       TYPE NAME                    SIZE       IDENTIFIER
   0:      APFS Container Scheme -                      +994.7 GB   disk3
                                 Physical Store disk0s2
   1:                APFS Volume Macintosh HD            9.6 GB     disk3s1
   2:              APFS Snapshot com.apple.os.update-... 9.6 GB     disk3s1s1
   3:                APFS Volume Preboot                 9.7 GB     disk3s2
   4:                APFS Volume Recovery                1.6 GB     disk3s3
   5:                APFS Volume Data                    602.7 GB   disk3s5
   6:                APFS Volume VM                      20.5 KB    disk3s6

/dev/disk4 (disk image):
   #:                       TYPE NAME                    SIZE       IDENTIFIER
   0:      GUID_partition_scheme                        +205.5 MB   disk4
   1:                  Apple_HFS 迅雷                    205.5 MB   disk4s1

/dev/disk5 (disk image):
   #:                       TYPE NAME                    SIZE       IDENTIFIER
   0:      GUID_partition_scheme                        +2.1 GB     disk5
   1:                  Apple_HFS Docker                  2.0 GB     disk5s1

/dev/disk6 (external, physical):
   #:                       TYPE NAME                    SIZE       IDENTIFIER
   0:      GUID_partition_scheme                        *125.3 GB   disk6
   1:       Microsoft Basic Data                         4.9 GB     disk6s1
   2:                        EFI ESP                     5.2 MB     disk6s2
   3:       Microsoft Basic Data                         307.2 KB   disk6s3
   4:           Linux Filesystem                         120.4 GB   disk6s4

确定待刻录的U盘挂载在/dev/disk6。

2. 取消挂载U盘

% diskutil unmountDisk /dev/disk6
Unmount of all volumes on disk6 was successful

这是为了防止U盘被占用导致刻录失败。

3. 刻录U盘

% sudo dd if=/Users/orthopole/Downloads/ubuntukylin-22.04-pro-amd64.iso of=/dev/disk6 bs=1m
Password:
4598+1 records in
4598+1 records out
4821962752 bytes transferred in 128.269242 secs (37592510 bytes/sec)

这里用到dd命令，其用法是sudo dd if=刻录文件 of=刻录U盘分区 bs=分块大小。
输入密码并等待其完成即可，刻录期间没有输出代表正常运行。