8Formatting Flash Disks and Flash Cards
The Flash disk or Flash card that shipped with your router contains the default Cisco IOS image for booting your router. This section explains how to format an ATA Flash disk, modify its contents, or resolve a problem with the Flash card.
Caution The formatting procedure erases all information on Flash memory disks or Flash cards.
ATA Flash disks and Flash cards use similar commands. The primary syntax change is that disk0: or disk1: refers to ATA Flash
disks, while slot0: or slot1: refers to Flash memory cards.
Use the following procedure to format a Flash disk:
Step 1 To format a Flash disk, you should be in privileged EXEC mode.
Step 2 Ensure there is a Flash disk in slot 0 or slot 1 of the PRE.
Step 3 Enter the format diskn: command at the privileged EXEC mode prompt to format the disk.
The following example shows the display after you enter the format disk0: command:
Router# format disk0:
All sectors will be erased, proceed? [confirm]
Enter volume id (up to 30 characters): MyNewdisk
Formatting sector 1
Format device slot0 completed
The Flash disk is now ready for use.
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