Chapter 4 System Startup and Basic System Configuration
Using RP Flash Memory Cards
Booting a New Cisco IOS Software Image from a Flash Memory Card
Use the following procedure to boot a new image from a flash memory card in slot 0 or slot 1 (this example uses slot 0).
Step 1 Insert the flash memory card with the new image in slot 0.
Step 2 Enter the following commands to designate the file named image.new as the new default system image for boot purposes:
Milo# configure terminal
Milo(config)# no boot system
Milo(config)# boot system flash slot0:image.new
Milo# copy running-config startup-config
Milo# reload
When the system reloads, it boots the image.new file from the memory card in slot 0.
Recovering from Locked Blocks in Flash Memory Cards
When power is lost or the card is removed from its slot during a write or erase operation, a locked block in flash memory cards occurs.
When a block of flash memory is locked, you cannot write to it or erase it. The only way to recover from locked blocks is to reformat the flash memory card using the format command (see the “Formatting a New Flash Memory Card” section on page
Caution Formatting a flash memory card erases all existing data on the card.
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