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

[@serinafallingstar]

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

[@giovannimendez5027]

When i put the sudo dd if=/dev/zero of=/dev/disk4 bs=1024 count=1024 my mac says sudo:command not found

[@lifeofarely1852]

I had tried everything and was ready to return my hard drive until I came across this video!!! thank you so much

[@liveengineering2231]

same here I got new one but not working sharing and permissions show read only and then formatting show this error wth

[@DanialVlogs]

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

[@tinosterling2392]

Thank you a million.... 6years after and still works.. .Thanks!!!!

[@britanguenoinlondon9304]

That COPY PASTE, is the most convenient method you created.,. unlike other tutorial .Thank you!!

[@amirisrage]

Oh my god this nigga the goat I swear. I was finna break this damn MacBook. Shout out you man 🙏🏾🙏🏾🙏🏾

[@nuriasilva8970]

"Input/output error" what do i do?

[@nuriasilva8970]

@Mohana Krishnan K I gave up. Nothing worked :(

[@tanwira4120]

@@nuriasilva8970 me too

[@garethconey9603]

Thanks , thought I had just bought a broken Samsung ssd, good video

[@dannygauthier]

Thank you a thousand times! Couldn't format my 2TB G-Drive at all. Now, it's like new!

[@yakirdamti5538]

Hey, I received an error that my permission denied what can I do to fix that?

[@danielprenticeproductions3375]

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

[@dev.MuhammadAlaminIslam]

dude, which app do u using for internet speed meter? can u mention here, please?

[@SmallTechReviews]

istat

[@rodriguinhojp5557]

"operation not allowed" how to proceed?

[@arjun0631]

Operations failed on mine as well. However I went to Disk utility and tried to erase. It was erased.

[@Jxrdy]

Same but when i copy and paste it and it worked because before that i didnt add space at "disk4 bs=1024"

[@izzzzzz6]

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.

[@spectaculardesing9890]

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

[@Rutledgp]

Am I able to do this from recovery mode? I've run into the issue of disk02 that can't be erased/repaired as well as the SSD I have installed. Am I able to access the terminal from recovery mode?

[@SmallTechReviews]

yes you are able to run the terminal in recovery mode

[@JeffMarkBaker]

Thank you for this very useful tutorial! You saved my new SSD. Was able to re-format after performing dd, and now I've starting cloning my HDD to the SSD. I will subscribe.

[@FadzliRealtor]

I am trying to reinstall after deleting it previously for a new owner for my laptop. Now I want to install the OS. It keeps on giving me error saying "an error occurred when preparing the installation". Changed the date and time still nothing. So I am trying to start from the beginning by erasing everything again. APFS is greyed out. When I choose Mac OS extended journaled, it gives me an error.

[@swoyammanandhar7097]

Please reply. I really need help. I did exactly what you said but now the disk is unreadable. I was doing it to only a partition of the disk but the whole disk is unreadable. Before I did the last step, at least the other partition used to show up but now it doesn’t. Please help!!!

[@emirnazren2157]

Same thing happen to me.. now I can't read my external. Sobbb

[@VoiceMessage]

It said disk2: Resource Busy

[@kavindrums]

VoiceMessage unmount your device

[@jrdeep]

@@kavindrums mine keeps saying Resource Busy even after disk was force unmounted as it is explained in the video.

[@kavindrums]

Jr Deep it might have to do with your sata cable, mine had the same issue, but replacing it fixed the issue

[@thato3347]

After typing password and pressing enter I got “dd: /dev/disk2: device not configured “ on top of what you got I tried to erase it anyway but it failed

[@X_DD]

Fuck apple im so done with these shit products. iMac was so fucking frustrating to use

[@damianvong9016]

Thank you so much dude! Now the SSD works normally on my laptop

[@SmallTechReviews]

What version of macos are you on?

[@FlecissaVideos]

dd: /dev/disk2: Input/output error 1+0 records in 0+0 records out 0 bytes transferred in 0.012877 secs (0 bytes/sec) it also shows UNABLE TO WRITE LAST BLOCK OF ...

[@sebastianlima]

im with you in every video

[@AhmedAbada]

I'm in the same problem dd: /dev/disk2: Input/output error 1+0 records in 0+0 records out 0 bytes transferred in 0.006242 secs (0 bytes/sec)

[@jdumandap]

Ahmed Abada any luck with these? same results for me. Unable to write and input output error as well. Been trying to troubleshoot

[@MrMarcoVW]

I'm not gonna say you saved my life (because you didn't), but you did save the hard drive I was about to throw away - so thanks for that!

[@SmallTechReviews]

MrMarcoVW well said

[@alessandrovettore1]

Great bro. The only process that worked among thousands of others 🙌

[@unteepassi7078]

It WORKED!!! Thank you love.

[@mariopqrst]

After all I get dd: /dev/disk5: Permission denied Any thoughts on how to continue from here?

[@جياالحق]

Use Sudo

[@simplyyam]

I'm trying to erase my internal hard drive using diskutil eraseDisk JHFS+ hardrivename diskN to do a fresh install but upon reaching 50% im getting error -69760: Unable to write to the last block of the device. Im also getting the same prompt on disk utility. Does it mean that my hard drive or possibly hard drive cable is toast? Thanks for any help.

[@tristenfortenberry5212]

@simply_yam ik this was forever ago, but did you ever find a fix for this? thanks in advance:)

[@simplyyam]

@@tristenfortenberry5212 i actually ended up replacing my hard drive.

[@tristenfortenberry5212]

@@simplyyam that’s tough, i appreciate the help thank you

[@Keenonhang]

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

[@confidencenyirenda87]

Thanks Mate! Worked after a long struggle

[@shikhab2250]

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)

[@particlesmedia]

I did everything that you said correctly, I entered the computer password in and now my external HD has completely disappeared so I can't complete the next step. It doesnt even show the HD up now

[@bonytony5295]

Did you put in the wrong disk?

[@banele_Cnah]

Man you're the best!!!! Thank you so much. My drive is back!!!

[@oatiko3065]

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".

[@shikhab2250]

I am wondering if you ever found a solution for this problem my hd too is stuck with this same error for over a year now and it's in an unmounted state disk utility mount button does not help

[@alykofi8799]

What to do when I try to erase disk0s2 it says volume erase failed file system formatted failed

[@mediaministry.church]

Dude! You are the man! Thanks so much for making this video!!!!

[@MichelleTan0910]

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

[@TheiTE]

It worked for me thanks, Just had to format it after doing this

[@SmallTechReviews]

That's good, I did forget to mention to format it after the terminal commands as I assumed it was common sense but I was wrong according to some previous comments

[@TheiTE]

@@SmallTechReviews Yup, Thanks for considering my comment, :)

[@chrisar1984]

Thank you so much my friend. Your video help me so much. Congratulations!

[@SmallTechReviews]

Im glad it helped

[@BogzWong]

Hello, after the password part. It seemed like it won't let me type anything after that. Idk why?

[@jovanatakac]

Same here

[@jason8anthony]

i get Bus error:10. any idea what that is?

[@beep.9009]

OMG !! it worked !! I've been try to fix this issue for couple days. Thanks

[@SmallTechReviews]

I'll take a look at it but as he can see in previous comments a lot of individuals have said it it doesn't work, I will see if the supplemental update helped this issue at all but if it works for you awesome

[@gurmeetchahal74]

Hi bro, I did as you said but after shows error/ couldn’t open device (69877)

[@LLLLLLLLLLL293]

Not working: message received on stage 3 please help: dd: /dev/disk2: Input/output error 1+0 records in 0+0 records out 0 bytes transferred in 0.021681 secs (0 bytes/sec)

[@ali-dj1uf]

dd: /dev/disk4: Operation not permitted i tried everything

[@janulkamizu]

New error occurred after doing your tutorial and now the disc is not visible anymore. Some tip? It is brain new WD elements 2T so no data on it. I tried to use it for time machine and during the formatting it failed and since that it is not working.

[@saurabh8198]

dd: /dev/disk2: Resource busy what should i do ?

[@iristang9168]

I have tried to copy your 1st and 2nd also can but the 3rd link cannot be done.

[@ajazshaik7202]

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

[@atraeumateo-panilo7011]

worked perfectly, thanks for the help, saved me $100

[@cjboffoli]

Thanks so much! Worked like a charm. Very helpful.

[@valeriaparreira6664]

The ONLY thing that worked...THANK YOU

[@trimagazi]

Guy thank you. You really saved my life

[@user-hq7sg4wo7k]

my is internal and it still didn't work idk what the problem is. pls help

[@NewYorkerPEACE]

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

[@SmallTechReviews]

Thank you for the advice, I will look into this

[@AdrianTATEOfficial]

Finally it worked. Thanks man 👏🏾

[@gilsmetana5288]

Hi, your tutorial is excellent! Sloved my problem! Many thanks:-)

[@gurmeetchahal74]

Hi bro, I did same as you said but now input/output error 1+0 record in 0+0 record out 0 bytes transferred in 0.015656 sec (0 bytes/sec) Please help me out 🙏🙏🙏🙏

[@beep.9009]

I'm having problem to erase 'other' file on my SSD , any idea? Thanks !

[@SmallTechReviews]

Unfortunately after they updated to Mojave This command in which I made this video no longer works, I'm trying to find a different solution but it's a little bit difficult to tread a get this thing to work myself , once I have a solution I'll try and update the video as well as the description

[@beep.9009]

Small Tech Reviews Thanks 😊

[@DoughCrafter]

After I put in the password in terminal nothing comes up confirming that worked but in your video something did come up. then I went into disk utility and tried to erase it and I got the same error, I tried it with every format and nothing worked! please help I need to hard drive to work!

[@tristenfortenberry5212]

@DoughCrafter did you ever find a fix for this? i’m in the same boat

[@chrisladewig697]

does this work with latest version of high Sierra?

[@SmallTechReviews]

Yes

[@AhmedAbada]

thank you man but it shows this in the end : dd: /dev/disk2: Input/output error 1+0 records in 0+0 records out 0 bytes transferred in 0.006242 secs (0 bytes/sec) Any Ideas ?

[@SmallTechReviews]

This work really well with high Sierra common I have to take a look how it works with Catalina even on Mojave

[@AhmedAbada]

​@@SmallTechReviews yes please .. I will be grateful and thankful

[@jdumandap]

Small Tech Reviews hi! Thank you for this! I also have the same error... were you able to find a fix for this on Mojave?

[@asthonsbackgrounds]

Still can't format my SSD after that process with exFAT, same error "....probing failed"

[@syedwasi985]

Thanks a lot man you helped a lot

[@SmallTechReviews]

I'm glad it helped

[@MrUnderdawg777]

Hey great video and the best I've seen, mine says failed to write to the last block when I try to format it to exfat ? My external harddrive comes as exfat as default which is great, I just wanna use it for storage and maybe run apps from it for my Mac any ideas or tips 😇 much appreciated 😇

[@alexanderperez6010]

On God, you saved my life, G. Good looking out!

[@guacamolee1979]

Hey Man. Thanks for the help. Does anyone know what if mine said dd: bs: Invalid Argument?

[@fixit1018]

THANK YOU SO MUCH YOUR VIDEO IS REALLY HELPFUL, THANK YOU

[@worth2worthnation]

Hey... I was denied permission after entering my password. Can you help?

[@kferreira86]

Thanks a ton bud! Great help.

[@clflover]

Unable to write to the last block of the device. : (-69760).. doesn't work for me

[@kmt488]

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?

[@master.swordz]

all 3 commands worked. But when I erase, I get stuck on Creating the partition map....

[@zekwaan]

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

[@harshansingh4822]

thank you very much, sir.

[@oraneblake]

Oh man thank you very much it helped me

[@nicolasmichel9137]

can I apply it to my internal ?

[@SmallTechReviews]

nicolas michel I’m not sure I’ve never tried it to an internal hard drive, if you’re in ternal hard drive is working I don’t see that there’s an issue here but if you’re in ternal hard drive is not working this could be a solution but again I can’t say yes or no to it because I’ve never tried it to an internal hard drive

[@christiantrost6374]

Thank you! This was big big help 🙌

[@luccianocastellanos4844]

I did everything and mine still says unable to write last block of device 69670 😢 can someone please help?

[@destydg3339]

it perfectly worked. Thank you :)))

[@andresbriceno73]

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

[@SuperZoomster]

I don't know if its just me but you recorded this either low volume on the mic or you're sitting too far away from the mic. I can barely make out what you're saying.

[@SmallTechReviews]

Bruno F I don’t know what to say because I had it in about 25% on my iPhone and I heard it just fine

[@boblatzer]

Didn’t work for me I’m afraid. I’ll have to use the sledgehammer method.

[@medtarekbachir6614]

You're the man! 🤝

[@josephmhlanga172]

Thanks . Worked like a charm! After a lot of time trying to fix. Saved my day

[@ybyasin]

Thank you 🙏🏽 brother 💙

[@rajdeepg55]

it is saying resource busy

[@vidalexperience]

rajdeep gupta I have the same issue but I am doing this from recovery mode

[@MrMcleoder]

I tried doing it but after i enter my password it says permission denied

[@dethchyl2824]

Same.

[@vontreherumaiBH]

I can’t click terminal command! It’s not showing up

[@Artuts]

DUDE! THANK YOU!!! worked flawlessly here!! =)

[@markkeegan17]

doesn't work for me. I've been trying to find a solution for that one for the past 2 weeks!!!

[@YoYouWildinBro]

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 :(

[@riadhch5643]

شكرا

[@SmallTechReviews]

You're welcome 😊

[@sakshiarjun2527]

Thank u so much it worked

[@SmallTechReviews]

Glad it helped

[@saintarthur8840]

Thank you so much, you save my day.

[@vanhan4225]

I like your video but too small I can't see at all. I wish you can make it biger for reading. Thanks

[@SmallTechReviews]

That's why it's "small tech review" lol, thanks for the feedback I'll keep that in mind

[@dronzerdroid]

Worked for me. Thanks man!

[@kuldeeppimple1994]

bs1024 not found

[@jewnearsa]

THIS WORKED, THANKS