[SOLVED] iMac OS X installation problems. Possibly bricked

[Harv0118]

I managed to mess up my iMac pretty badly, it's a 2013 27" and when i boot it up it shows the question mark folder. I recently bought a OS X 10.10 install flash drive, but when I plug it in to upgrade I run into a bigger problem. My disk is not showing up. It could be, but I'm really unsure of what it would be if it was my disk. In disk utility, i have a disk 2 and disk 3. Disk 2 is erasable and partitionable, and under it is "OS X Install ESD" and is sized 6.02 gb. But the problem im having, is that disk 3 isn't partitionable or erasable, and it is saying the total capacity is 1.33 gb. I'm not sure if this is my hard drive, but my hard drive is 1tb and I cant seem to erase this or partition it in any way. I'm in no way familiar with apple computers and help is much appreciated. Thanks!

 

[SchizTech]

This could be a bad hard drive, or possibly a very badly corrupted filesystem on the drive.

There's a utility made by Seagate to test HDDs, called Seatools. The DOS version is bootable, and it happens that Windows disks are bootable on Intel based macs. So, you need to wrangle a blank CD, burn the Seatools image to the disk then boot from it and run the tests.

- download from here:

https://www.seagate.com/files/www-content/support-content/downloads/seatools/_shared/downloads/SeaToolsDOS223ALL.ISO

- On a working PC with a DVD burner, insert a blank CD into the drive and use a program like

https://cdburnerxp.se/en/home

Use the option "burn disk image" - don't make a data disk and copy the iso file to it!

- Once complete, boot the mac, slide the disk into it's own DVD drive while holding "option" key.

- On the screen that loads use the arrow key to highlight "windows" and hit enter

- OK whatever dialog boxes pop up while Seatools loads then highlight the drive and select the tests to run. Start with "quick" tests and if they pass move on to "full," though if a failure message happens on the quick test that's a clear answer.