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OS X - Operating System General OS operation information and support

Can't mount startup drive using disk utility


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abrandt

 
Member Since: May 30, 2011
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I have this mac that is fairly old running os x 10.4. When I turned it on today it stalled on the startup screen and then after several minutes the apple logo turned into a circle with a line through it. Before doing a reinstall i decided to run the disk utility program off of the install cd. The repair stopped halfway through and said that it was unable to complete. The same occurs when i try to verify it. Now my problem is that after running the repair the startup disk is no longer mounted. If i try and mount it, it gives an error and says to run the repair. Ive run a hardware test and everything passed so i dont think its a hardware issue. I have the disk warrior program but i cant try it because my optical drive keeps spitting out any cd but the install disk (separate problem). Ive tried using terminal by typing in "diskutil mount /dev/disk0s3" where disk0s3 is the disk identifier but that doesnt work. ive loaded fsck in single user mode but when i run "/sbin/fsck -fy" it scans the install disk because i cant run off the startup disk since it isnt mounted. Any ideas?
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chscag

 
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Mac Specs: 27" iMac i5, 3.2 GHz, iPad 3, iPhone 5c, 3 iPods, OS X Mavericks

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You didn't give us much to go on.

What kind of Mac? Are you able to remove the hard drive from the machine and then boot with the Tiger DVD?
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harryb2448

 
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Mac Specs: iMac i5 2.7GHz, 16GB memory, OS X.10

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G'day and welcome to the forums.

Sounds well like it is time for a new hard drive. Depending on the precise model, which is not included in the thread, may only see up to 128GB so do not waste money buying a larger drive if that is all it can see natively.

Hang on to those original install discs like grim death! Using OS X.7 or later make a bootable USB thumb drive before running Installer!
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abrandt

 
Member Since: May 30, 2011
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to anyone with the same issue. turns out all i had to do was reset the nvram in the open firmware.
enter open firmware with cmd-option-o-f
then type:
reset-nvram
reset-all
press enter after each command. the reset all command will restart the computer.
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