How to fix MAC OS Hard Drive formatting issue 2018 – 2021

23 Comments

1. I want to thank you so much ! I thought I was going to lose my hard disk but you saved my life, thank youuuuuuu ! 💛

2. thank so much
   it works

3. This is quite an old video not sure if anyone will answer but can somone please explain why you are writing all zeros to the external flash drive?(i think this is what that dd command is doing unless i am wrong)

4. Good evening! I have disk 0.
   I have a 2019 Catalina. Is it okay for me to
   do this?

5. Duuuuuuude, thank you so much !!!!!!!

6. The volume on this video is ridiculously low 🚮🚮🚮

7. Command not found

8. Worked great. Thanks. I was having a lot of bother with this issue.

9. thank you so much~~~this finally works!!!!1

10. I've tried force unmount with terminal and disk utility but I am still when erasing it seems to get stuck on "Waiting for partition to activate".

11. Hi thank you but I still get error (-697760)

12. you are a mannnnnnnnn. ı was struggling for this from hours and saw alot of videos but nothing happend. and finally u solved it mannnnnn. love uuuu

13. It WORKED!!! Thank you love.

14. I get through all that and then it says Operation not permitted
    ahhhhhhh

15. Erasing “Samsung PSSD T7 Media” (disk4) and creating “500GB SSD”

    Unmounting disk
    Creating the partition map
    Wiping volume data to prevent future accidental probing failed. : (-69825)

    Operation failed…
    Still getting this can you help

16. good video but you need to zoom in on the steps.

17. I ran first aid in recovery mode, i thought that worked to fix my issue but…… The next day i went to restart and no luck, i found the issue. I had failed to update monterey os. I was having more issues and could not start up in recovery mode to run disc utility but the disc was not the issue. I managed to startup with left shift held down after several attempts then i managed to go to about this mac, software update (app store was not working) then i ignored the recommended os and clicked on show more updates, then i found the missing update for monterey, this took around 30 mins and a few restarts, which it seemed to do on it's own. I was scared as my monitor was working and sometimes updates do not allow the use of the external monitor. Anyway. Finally this worked. no more error showing in startup disc in disc utility first aid when clicking on the top disc option.

18. So helpful!!!!

19. It says the forced unmount was successful but I'm still getting an error on the third command

20. I got this error

    dd: /dev/disk6: Input/output error
    1+0 records in
    0+0 records out
    0 bytes transferred in 0.042328 secs (0 bytes/sec)

    looks like it worked for everyone else though. I guess my external Is garbage then 🙁

21. شكرا

22. It didn't work. On the last step, I got this message.

    1+0 records in
    0+0 records out
    0 bytes transferred in 0.016235 secs (0 bytes/sec)

    I still can't fix it. Can anyone help please?

23. it didn't work for me it says sudo : command not found
    idk why