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MacでWindows10 ブートUSBの作り方

Last updated at Posted at 2020-10-10

コマンドラインでやるならこれ 

1. デバイス名の確認

ディスク名: disk1s1 = diskNsM
N: デバイス識別子
M: パーティション番号


# device確認
$ diskutil list

/dev/disk0 (internal):
   #:                       TYPE NAME                    SIZE       IDENTIFIER
   0:      GUID_partition_scheme                         251.0 GB   disk0
   1:                        EFI EFI                     314.6 MB   disk0s1
   2:                 Apple_APFS Container disk1         250.7 GB   disk0s2

/dev/disk1 (synthesized):
   #:                       TYPE NAME                    SIZE       IDENTIFIER
   0:      APFS Container Scheme -                      +250.7 GB   disk1
                                 Physical Store disk0s2
   1:                APFS Volume Macintosh HD            191.0 GB   disk1s1
   2:                APFS Volume Preboot                 46.6 MB    disk1s2
   3:                APFS Volume Recovery                510.4 MB   disk1s3
   4:                APFS Volume VM                      3.2 GB     disk1s4

/dev/disk2 (external, physical):
   #:                       TYPE NAME                    SIZE       IDENTIFIER
   0:     FDisk_partition_scheme                        *7.7 GB     disk2
   1:                 DOS_FAT_32 WINDOWS USB             7.7 GB     disk2s1
   2:                 DOS_FAT_32 UEFI_NTFS               524.3 KB   disk2s2

2. フォーマット

# ディスクの消去. デバイス識別子を指定
$ diskutil eraseDisk MS-DOS UNTITLED /dev/disk2

3. 焼き込み

MacOSX上でISOファイルからインストールUSBディスクを作る - re:inventing the wheel

# 焼き込み
$ sudo dd if=Win10_2004_Japanese_x64.iso of=/dev/rdisk2 bs=1m

* ~は使えない。フルパスか相対パスで書く。
* disk2ではなくrdisk2の方が高速 (らしい

おまけ. boot tools

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