I think you have a bad hard drive there my friend. Those symptoms exactly match what you see with a bard drive. It could also be a bad drive, cable but that is much less common.
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Can't partition new MacBook Pro?
- Thread starter seeforyourself
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I think you have a bad hard drive there my friend. Those symptoms exactly match what you see with a bard drive. It could also be a bad drive, cable but that is much less common.
There's a way to test it? To confirm your diagnosis? Thank you in advance for being there!
You can try using Disk Util to do a verify disk and see what that says, but I suspect it won't tell you much since you can't even get it formatted.
Thing is Disk Util can say a drive is okay and have the drive still be bad. There are more thorough drive test tools, but for what they cost, you could just buy a new drive for around $50. The cable is around $10 or so. If it was me, I would just get both to be sure.
Do you have an external 2.5' disk enclosure? It is a bit of messing around, but you could try putting the drive in the enclosure then from internet recovery see if you can then format the drive and install to it. If you can, that would point to the internal cable rather than the drive.
I think I will buy a new drive and cable. If any solution comes meanwhile I will post here. Thank you so much for the input, anyhow.
Sorry that I'm writing here. I'm totally new in forums.
I was just searching and this post was similar to my problem.
Anyways I hope someone can help me with this issue.
Just upgraded to the imac retina i7 4ghz 4gb video 8gb ram 3tb fusion drive.
I had problems with yosemite. safari , notes, reminder ,terminal didn't launch so I decided to do a clean install with the 10.10.1 version .
I made a bootable usb drive through terminal with my previous imac
Restarted the system I held down alt button then I chose the yosemite drive.
After this I went to disc utility to erase my main hd.Everything went well untill a blackout.
So I started the whole process all over again but when I wanted to erase the main hd it didn't offer me the erase option.i don't know what to do.never ever had such a problem and it's not the first time that I'm doing a clean instal. Help.
🙁
I was just searching and this post was similar to my problem.
Anyways I hope someone can help me with this issue.
Just upgraded to the imac retina i7 4ghz 4gb video 8gb ram 3tb fusion drive.
I had problems with yosemite. safari , notes, reminder ,terminal didn't launch so I decided to do a clean install with the 10.10.1 version .
I made a bootable usb drive through terminal with my previous imac
Restarted the system I held down alt button then I chose the yosemite drive.
After this I went to disc utility to erase my main hd.Everything went well untill a blackout.
So I started the whole process all over again but when I wanted to erase the main hd it didn't offer me the erase option.i don't know what to do.never ever had such a problem and it's not the first time that I'm doing a clean instal. Help.
🙁
Attachments
Can't partition new MacBook Pro?
]In the disk utility menu you will need to open terminal ( it's on one of the tabs on the top in the recovery menu) then I had to enter into terminal: "diskutil cs list" with out the "" . then u will need to highlight and copy the "logical volume" which has the many numbers and letters and then you will need to enter "diskutil cs [logical volume group here] delete" ... then when that is done you will have to go to disk utility in the menu and u will see ur hard drive come up and over the tab "Macintosh hd" u will see "untitled" and u will rename it to what ever you want then hit erase. then you will see the hard drive when u install OS X
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Also I'd like to note; when you do reinstall it DONT do from "back up" do "as new machine" then after it is freshly installed it will say "back up from time machine" then u hit yes and it will ask u if you want the firevault and make sure u uncheck it!!! if you don't u would have to do the whole process again...
]In the disk utility menu you will need to open terminal ( it's on one of the tabs on the top in the recovery menu) then I had to enter into terminal: "diskutil cs list" with out the "" . then u will need to highlight and copy the "logical volume" which has the many numbers and letters and then you will need to enter "diskutil cs [logical volume group here] delete" ... then when that is done you will have to go to disk utility in the menu and u will see ur hard drive come up and over the tab "Macintosh hd" u will see "untitled" and u will rename it to what ever you want then hit erase. then you will see the hard drive when u install OS X
----------
Also I'd like to note; when you do reinstall it DONT do from "back up" do "as new machine" then after it is freshly installed it will say "back up from time machine" then u hit yes and it will ask u if you want the firevault and make sure u uncheck it!!! if you don't u would have to do the whole process again...
In my case there was no solution: the HD was already in a bad state and "deleting" it in that way in disk utilities just killed it completely. Not even Disk Warrior has able to fix its directory or bring it from death. Buying a new HD was my only solution. I bought a SSD (Solid-state drive) and the computer is running 3x faster then when it was new. I seems new now, extremely fast. I've downgrade it though to Lion, and upgrade it only to Mountain Lion. It's in perfect conditions.