![]() I've also tried deleting the file SuperDuper is erroring on and then doing a backup again, but it'll just fail on a new file. When I tried to do a SuperDuper backup again, I get another I/O error. I rebooted with OSX install disk, did a Disk Repair which found errors and fixed them. It kept failing with an I/O error around the same spot (Itunes related files). I initially found out my disk could be having problems when I attempted to do SuperDuper full backup. Yikes, seems like most of the replies indicated I need to do a full format of the drive in order to do a thorough surface scan? In order to do that, I'd need to backup my system, but that's the problem you see. ![]() The format process can take up to several hours depending upon the drive size. Set the format type to Mac OS Extended (Journaled.) Click on the Options button, check the button for Zero Data and click on OK to return to the Erase window.Ħ. Click on the Erase tab in the DU main window.ĥ. Select the volume you just created (this is the sub-entry under the drive entry) from the left side list. Click on the Partition button and wait until the process has completed.Ĥ. Set the format type to Mac OS Extended (Journaled.) Click on the Options button, set the partition scheme to GUID (for Intel Macs) or APM (for PPC Macs) then click on the OK button. Under the Volume Scheme heading set the number of partitions from the drop down menu to one. Otherwise, click on the Partition tab in the DU main window.ģ. SMART info will not be reported on external drives. If it does not say "Verified" then the drive is failing or has failed and will need replacing. Note the SMART status of the drive in DU's status area. After DU loads select your hard drive (this is the entry with the mfgr.'s ID and size) from the left side list. When the menu bar appears select Disk Utility from the Utilities menu.Ģ. ![]() ![]() After the installer loads select your language and click on the Continue button.
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