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jean346

macrumors newbie
Apr 22, 2017
1
0
Hi Weaselboy.

I have read this discussion and followed your instruction for an internet recovery and hard drive formating ... it was very helpful and all the steps leaded to success.

Now, I am about to install Sierra. In the macOS Utilities window I click on "Reinstall macOS" and I click on "Continue" (agreeing to the terms of the licence), until I am asked to install Sierra on the hard drive.

And here is the problem: I get a message that it is "About 6 minutes remaining" for the installation. But the progression bar doesn’t move at all. I tried it a couple of time (cancel and redo the procedure). The first time the installation stopped at 12 seconds. Now it doesn’t go on at all ...

Do you think, you know what can be the reason?

Thank you for the advices till now and in advance for your answer.
 

Weaselboy

Moderator
Staff member
Jan 23, 2005
34,481
16,195
California
And here is the problem: I get a message that it is "About 6 minutes remaining" for the installation. But the progression bar doesn’t move at all. I tried it a couple of time (cancel and redo the procedure). The first time the installation stopped at 12 seconds. Now it doesn’t go on at all ...

How long did you wait at that stage for it to progress? I have read about people waiting up to an hour or so for it to move along. Did you perhaps not wait long enough?
 

TheDoors 00

macrumors newbie
Apr 28, 2017
3
1
I'm not quite sure how you got in this mess, but here is how to fix it. (I am assuming here there is not some underlying hardware issue that got all this started).

Hold command-option-r at boot and select your wifi when asked. Then you will see a spinning globe while the recovery utility downloads and installs. Once that is done you will see the recovery screen. From there launch Terminal from the Utilities menu and enter the line below exactly like I have it, including the quotes. That will blow off the Fusion drive.

Code:
diskutil cs delete "Fusion Drive"

Now quit Terminal and launch Disk Utility. You should see a screen like this offering to fix the Fusion drive. Go ahead and click Fix to rebuild the Fusion drive.

View attachment 610983

Now quit Disk Utility and click reinstall OS X at the top and wait for it to finish and restart. This will put you on the OS X version that came from the factory. You can update to El Capitan after if you like.

What you are seeing locked there in your second screenshot is the Recovery HD partition, and that is as it should be and not the problem. The problem is you borked the Fusion drive somehow and this will fix it.
I'm not seeing anything wrong there. Once you have command-r booted to recovery can you not select that 499GB Macintosh HD volume as the install target?

I'm not quite sure how you got in this mess, but here is how to fix it. (I am assuming here there is not some underlying hardware issue that got all this started).

Hold command-option-r at boot and select your wifi when asked. Then you will see a spinning globe while the recovery utility downloads and installs. Once that is done you will see the recovery screen. From there launch Terminal from the Utilities menu and enter the line below exactly like I have it, including the quotes. That will blow off the Fusion drive.

Code:
diskutil cs delete "Fusion Drive"

Now quit Terminal and launch Disk Utility. You should see a screen like this offering to fix the Fusion drive. Go ahead and click Fix to rebuild the Fusion drive.

View attachment 610983

Now quit Disk Utility and click reinstall OS X at the top and wait for it to finish and restart. This will put you on the OS X version that came from the factory. You can update to El Capitan after if you like.

What you are seeing locked there in your second screenshot is the Recovery HD partition, and that is as it should be and not the problem. The problem is you borked the Fusion drive somehow and this will fix it.
Heyy I NEED HELP! I tried Factory resetting my imac and when i clicked on Disk utility i clicked on Restore instead of erase, when i tried to Download an os from the internet it says its locked like his^^^. I did what you said with terminal but it does not work, it is still locked . What can i do to fix it?
[doublepost=1493422315][/doublepost]
Okay... this will kill it. The issue is you copied my earlier command with Fusion HD in it. I gave the other user that command because that is what his drive was named. Yours is named Macintosh HD so the command is different.

Code:
diskutil cs delete "Macintosh HD"
I followed what you told him but my HD says something completely different
 

TheDoors 00

macrumors newbie
Apr 28, 2017
3
1
Heyy I NEED HELP! I tried Factory resetting my imac and when i clicked on Disk utility i clicked on Restore instead of erase, when i tried to Download an os from the internet it says its locked like his^^^. I did what you said with terminal but it does not work, it is still locked . What can i do to fix it?
[doublepost=1493422315][/doublepost]
I followed what you told him but my HD says something completely different
[doublepost=1493424871][/doublepost]When i go to Disk Utility "Erase" is greyed out,
 

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Weaselboy

Moderator
Staff member
Jan 23, 2005
34,481
16,195
California
When i go to Disk Utility "Erase" is greyed out,

It does not look like you have a core storage volume on there. Start Disk Utility and go to the erase tab, then select the drive itself at the very top of the left column like in my screenshot. Then select Mac OS Extended (Journaled) from the dropdown and apply that format.

You will need to do this from Internet recovery (command-option-r boot)

Screen Shot 2017-04-29 at 6.03.26 AM.png
 

TheDoors 00

macrumors newbie
Apr 28, 2017
3
1
It does not look like you have a core storage volume on there. Start Disk Utility and go to the erase tab, then select the drive itself at the very top of the left column like in my screenshot. Then select Mac OS Extended (Journaled) from the dropdown and apply that format.

You will need to do this from Internet recovery (command-option-r boot)

View attachment 697869
Thank you so much ! My mac works again, Youre a true hero!
 
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NishLija

macrumors newbie
May 5, 2017
4
0
IMG_2798.JPG
IMG_2796.JPG
IMG_2797.JPG
@Weaselboy In great need of help here
I bought my first macbook pro like a month ago and wanted to reinstall os. It's macbook pro 2009 15" i made bootable flash, format HD and never saw a light of desktop again :( when I try to go for Internet recovery I hold cmd alt r but don't see any globe spinning. My terminal photos

And when I try to boot it with flash plugged in and hold alt key I see only
Thanks in advance

Edit: mbp was running yosemite
 
Last edited:

Weaselboy

Moderator
Staff member
Jan 23, 2005
34,481
16,195
California
You 2009 model does not come with Internet (command-option-r boot) recovery.

Can you command- boot to regular recovery? From there start Disk Utility and go to the erase tab and try to format that OS X Base System partition to Mac OS Extended (Journaled). Then try to reinstall.
 

NishLija

macrumors newbie
May 5, 2017
4
0
When I go to disk utility and try to format or partition it it says that device can't broj unmounted but it is already mac OS extended journaled
 

NishLija

macrumors newbie
May 5, 2017
4
0
It asks me for my iCloud, when I log into appstore to download yosemite it says this item is not available
 

Weaselboy

Moderator
Staff member
Jan 23, 2005
34,481
16,195
California
It asks me for my iCloud, when I log into appstore to download yosemite it says this item is not available
Have you ever downloaded Yosemite under that AppleID? You will need to use an AppleID that was previously used to install Yosemite.
 

iubhounds

macrumors regular
Nov 29, 2010
169
9
It does not look like you have a core storage volume on there. Start Disk Utility and go to the erase tab, then select the drive itself at the very top of the left column like in my screenshot. Then select Mac OS Extended (Journaled) from the dropdown and apply that format.

You will need to do this from Internet recovery (command-option-r boot)

View attachment 697869

I just looked at this thread tonight and from your post I am thinking I did something wrong. When choosing my drive to erase I did not highlight the line you have but the McIntosh HD underneath it. Since that time I re-installed Sierra, all my files from Time Machine. It ran great on Sunday night after I did all of the restoring but this morning it started getting buggy again. I'd click to read an email, spinning beach ball ... I'd open Excel, highlight the cell I wanted to type in, spinning beach ball. The computer itself is very slow.

I have had to reboot many times today. I ran Disk Utility repair to see if something had happened to my hard drive. Nothing was found wrong.

Last night I moved my Photo Library to an external drive and then deleted the library from the iMac, freed up 269Gb of files. I've had the Activity Monitor open at all times and most of the time memory used is below 3Gb.

It is not nearly as fast as it was before it crashed on Thursday. Before last Thursday I had zero problems with it. I do no play games on it, never watch tv on it, mostly photo editing, internet surfing and work with Excel.

So basically did I screw up by choosing the next line down McIntosh HD instead of the top line with the hard drive name and type?

My iMac was bought new in 2010, it was built Mid-Summer 2010, i3, 4Gb RAM, 500Gig HD.
 

Weaselboy

Moderator
Staff member
Jan 23, 2005
34,481
16,195
California
So basically did I screw up by choosing the next line down McIntosh HD instead of the top line with the hard drive name and type?

No not at all. What you did just erases the Macintosh HD partition versus selected the drive above that erases the whole drive including the recovery partition. But if you just want to reinstall the same OS version you are now using, what you did works fine.

That spinning beach ball when doing simple things like you describe sounds a lot like a failing drive.

Have you installed any software lately that may have caused this, or did it just start all on its own?
 

iubhounds

macrumors regular
Nov 29, 2010
169
9
No not at all. What you did just erases the Macintosh HD partition versus selected the drive above that erases the whole drive including the recovery partition. But if you just want to reinstall the same OS version you are now using, what you did works fine.

That spinning beach ball when doing simple things like you describe sounds a lot like a failing drive.

Have you installed any software lately that may have caused this, or did it just start all on its own?

It just did it on it's own. My intuition was telling me my drive was dying a slow death. So, last night over on the iMac section I told the story. I got a link from a poster that told me in a second, literally, that my drive was failing due to bad sectors, with a reason of old age.

I got some good years out of the computer after buying it new in October 2010. It's was built early-summer 2010.

Thanks for the explanation on those two lines for the hard drive in Disc Utilities.
 
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kys7eve

macrumors newbie
Jun 3, 2017
6
1
Help! I'm having the same issue where I was trying to reset my computer to sell it. It's a 2011 MacBook Pro 15. I followed some instructions online to erase "macintosh Hd". I did that and went to reinstall macOS. However it's coming up that the disk is locked. I've been trying everything but I don't have many options. I attempted to change the format but it was greyed out. I took some pictures but they won't upload.
 

Weaselboy

Moderator
Staff member
Jan 23, 2005
34,481
16,195
California
Once you get back in recovery, open Terminal from the Utilities menu, then run the two commands below one after the other. Then post the output of each command here so we can take a look.

Code:
diskutil list
diskutil cs list
 

kys7eve

macrumors newbie
Jun 3, 2017
6
1
Once you get back in recovery, open Terminal from the Utilities menu, then run the two commands below one after the other. Then post the output of each command here so we can take a look.

Code:
diskutil list
diskutil cs list

I did this. I tried attaching the picture but it says the file is too large. Any thoughts?
 

Weaselboy

Moderator
Staff member
Jan 23, 2005
34,481
16,195
California
It looks like somehow you copied the installer onto the main drive, and not you cannot do anything with that drive since you are booted to it.

Tyr getting to Internet recovery by holding command-option-r at boot. Select your wifi then you should see a spinning globe while the recovery utility downloads. Then you will see the recovery screen. Now use Disk Utility to erase the entire drive then try to reinstall.
 

kys7eve

macrumors newbie
Jun 3, 2017
6
1
It looks like somehow you copied the installer onto the main drive, and not you cannot do anything with that drive since you are booted to it.

Tyr getting to Internet recovery by holding command-option-r at boot. Select your wifi then you should see a spinning globe while the recovery utility downloads. Then you will see the recovery screen. Now use Disk Utility to erase the entire drive then try to reinstall.


It showed the spinning globe and said internet recovery but after about 10 minutes this popped up. I tried shutting it down and doing it again but it popped up right away
http://imgur.com/Uu0GWRK
 
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