Mac OS X 10.1: CD Installation Stops, "File could not be written" Alert Appears

Symptom

Mac OS X 10.1 installation does not complete, and this message appears:

"File could not be written"

Solution

First, review technical document 106693, "Mac OS X: Troubleshooting Installation From CD-ROM".

Follow these steps if the information in document 106693 does not resolve the issue:

1. Shut down the computer and verify that all internal ATA (IDE) devices are properly installed.
2. Check for proper master/slave settings when applicable.
3. Check to see that data and power cables are firmly connected for ATA devices.

Note: Your hard disk should not be set to ATA ID 1 (slave mode) if it is the only ATA device on the bus. See technical document 106728, "Mac OS X: Cannot Install From ATA ID 1 (Slave) Disc Drive".

Advanced step: If installation still does not complete, shut down your computer and temporarily disconnect additional ATA devices, such as an internal (ATA) Zip drive, if present. Disconnect the device by unplugging the ATA data cable. Remember that your hard disk should not be set to ATA ID 1 (slave mode) when it is the only device on the ATA bus.