After a repair task with disk utility I can't mount my external hard drive on my mac. I have tried to mount it on terminal
but I receive this eror
mount: /dev/disk1s1: unknown special file or file system.
I have tried to verify the volume
diskutil verifyVolume disk1s1
and I receive this error
Error starting file system verification for disk2s1 OneTouch4: Invalid request (-69886)
What I can do?
This is the result of diskutil list
/dev/disk0 #: TYPE NAME SIZE IDENTIFIER 0: GUID_partition_scheme *500.3 GB disk0 1: EFI EFI 209.7 MB disk0s1 2: Apple_HFS Macintosh HD 499.4 GB disk0s2 3: Apple_Boot Recovery HD 650.0 MB disk0s3 /dev/disk1 #: TYPE NAME SIZE IDENTIFIER 0: FDisk_partition_scheme *500.1 GB disk1 1: Windows_NTFS OneTouch4 500.1 GB disk1s1