mac USB HDD failed: at least one volume could not be unmounted

mac

接続しても反応しない ディスクユーティリティにも表示されない状態となった

初期化を試みる

確認

[code lang=text] astelnoMacBook-Pro% 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_CoreStorage Macintosh HD 298.4 GB disk0s2 3: Apple_Boot Recovery HD 650.0 MB disk0s3 4: Microsoft Basic Data BOOTCAMP 193.0 GB disk0s4

/dev/disk1 (internal, virtual): #: TYPE NAME SIZE IDENTIFIER 0: Apple_HFS Macintosh HD +298.0 GB disk1 Logical Volume on disk0s2 094739F1-0A66-4032-BFD9-6C3E5DAFE984 Unencrypted

/dev/disk2 (external, physical): #: TYPE NAME SIZE IDENTIFIER 0: GUID_partition_scheme *500.1 GB disk2 1: EFI EFI 209.7 MB disk2s1 2: Apple_HFS astel_HDD 499.8 GB disk2s2

astelnoMacBook-Pro% [/code]

/dev/disk2 として接続されていることはわかるがディスクユーティリティには表示されていない状態

unmountして初期化を試す

[code lang=text] astelnoMacBook-Pro% diskutil unMountDisk /dev/disk2 Unmount of disk2 failed: at least one volume could not be unmounted astelnoMacBook-Pro% astelnoMacBook-Pro% astelnoMacBook-Pro% sudo diskutil unMountDisk /dev/disk2 Password: Unmount of disk2 failed: at least one volume could not be unmounted astelnoMacBook-Pro% astelnoMacBook-Pro% astelnoMacBook-Pro% sudo diskutil unMountDisk force /dev/disk2 Unmount of disk2 failed: at least one volume could not be unmounted [/code]

失敗する

psコマンドでなんか使ってるか見る

[code lang=text] astelnoMacBook-Pro% sudo ps aux | grep -v grep | grep disk2 root 311 46.7 12.5 4596756 2104132 ?? R 2:52PM 15:13.10 /System/Library/Filesystems/hfs.fs/Contents/Resources/./fsck_hfs -y /dev/disk2s2 [/code]

なんか使われてるのでkill

[code lang=text] astelnoMacBook-Pro% sudo kill -9 311 astelnoMacBook-Pro% sudo ps aux | grep -v grep | grep disk2 root 988 16.6 1.7 4551700 285428 ?? R 3:35PM 0:00.62 /System/Library/Filesystems/hfs.fs/Contents/Resources/./fsck_hfs -y /dev/disk2s2 astelnoMacBook-Pro% sudo kill -9 988
astelnoMacBook-Pro% sudo ps aux | grep -v grep | grep disk2 root 1007 15.7 1.7 4551700 278852 ?? R 3:35PM 0:00.38 /System/Library/Filesystems/hfs.fs/Contents/Resources/./fsck_hfs -y /dev/disk2s2 astelnoMacBook-Pro% astelnoMacBook-Pro% astelnoMacBook-Pro% sudo kill 1007 astelnoMacBook-Pro% sudo ps aux | grep -v grep | grep disk2 astelnoMacBook-Pro% sudo ps aux | grep -v grep | grep disk2 astelnoMacBook-Pro% astelnoMacBook-Pro% sudo ps aux | grep -v grep | grep disk2 astelnoMacBook-Pro% sudo ps aux | grep -v grep | grep disk2 [/code]

kill -9 やるとゾンビになるので-9なしでやったら死んだ

[code lang=text] astelnoMacBook-Pro% 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_CoreStorage Macintosh HD 298.4 GB disk0s2 3: Apple_Boot Recovery HD 650.0 MB disk0s3 4: Microsoft Basic Data BOOTCAMP 193.0 GB disk0s4

/dev/disk1 (internal, virtual): #: TYPE NAME SIZE IDENTIFIER 0: Apple_HFS Macintosh HD +298.0 GB disk1 Logical Volume on disk0s2 094739F1-0A66-4032-BFD9-6C3E5DAFE984 Unencrypted

/dev/disk2 (external, physical): #: TYPE NAME SIZE IDENTIFIER 0: GUID_partition_scheme *500.1 GB disk2 1: EFI EFI 209.7 MB disk2s1 2: Apple_HFS astel_HDD 499.8 GB disk2s2

astelnoMacBook-Pro% sudo diskutil unMountDisk /dev/disk2
Unmount of all volumes on disk2 was successful [/code]

無事unmountできた

この状態でディスクユーティリティみるとちゃんと表示されているのでそこから初期化した めでたしめでたし

astelnoMacBook-Pro%