usb flash drive waiting for partitions to activate mac

Thanks, this fixed my Seagate SSD which can not be mounted ** Checking active bitmap. I ran fsck in single mode diskutil in terminal all that.At least I got some good Mac lessons.

When I reboot my Mac I'm back to square one. The drive content did show on windows but Not in Mac the format is Exfat there is a 'Back Up' partion also.When I run Diskutil: I get this message 'Updating boot support partitions for the volume as required.Unable to unmount volume for repair.Operation failed.' The drive did open once the files were accessible. The format, capacity, available space left on partion info are correct. One thing I did notice maybe that's the problem I go to the drive icon right click go to 'Get info' my Storage Info is wrong it says Modified:Monday, December 31,1969 at 11:00PM and under General: Created: Wednesday,December 31,1969 at 7:00PM Modified: Monday, December 31,1979 at 11:00PM. Back to square one the drive shows but still won't repair in disk utility tried almost everything since mid March of this year. After the drive debug on a 6TB WD Elements usb hard drive Took more than 12/hrs whew.the message said 'everything seems to be ok' received No errors.

Usb flash drive waiting for partitions to activate mac