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- Macintosh: Disk Recovery
- At the outset, we recommend that you and your customers practice that
- time-honored tradition of backing up important files. Recently, however, we
- have gotten suggestions on reviving damaged Macintosh application disks and
- retrieving files from damaged data disks. Since there are many ways to blow
- up disk directories, though, these methods are not 100% effective.
-
- Method one: Rebuild the desktop file.
-
- 1. If the disk is bootable (i.e. has a system folder on it), put the bad disk
- into the internal drive while the Macintosh is turned off.
- 2. Hold down the OPTION and COMMAND keys and turn the Macintosh on.
- 3. While the Macintosh boots, hold down the OPTION and COMMAND keys
- until the disk icon appears.
- 4. If the disk is a data disk (i.e. no system folder on it) then boot the
- system with a good disk. When the data disk is inserted into the drive
- hold down the OPTION and COMMAND keys as above.
-
- This method sometimes requires several attempts, and while it restores data
- files, file folders are lost on Finders prior to 4.1; they must be re-created,
- and the documents must be placed back into them manually. If the Finder is
- version 4.1 or greater then the folders lose their names and must be manually
- renamed.
-
- Method two: Recovering files.
-
- 1. Boot the Macintosh with a good copy of the application needed to read the
- data files you wish to recover.
- 2. Create a new document in that application with a double click on the
- application's icon.
- 3. Once the document, usually called "Untitled", has opened, close it.
- 4. Select Open on the File menu.
- 5. Insert the bad disk.
- 6. Select Open again and try to read files off of the bad disk.
- 7. Save the files to a good disk.
-
- This method also works faster if you use a second drive for reading data
- files.
-
- Method three: Replacing System Files.
-
- This method has been known to work with disks that fail to boot and exhibit a
- "Sad Macintosh" with the address 0F0064. First attempt Method one above. If
- that doesn't work, boot from a good disk and then insert the bad one. If the
- bad one appears on the desktop, then throw away the bad disk's System Files and
- replace them with new ones from the good disk.
- Apple Technical Communications
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