Guides administrators through managing file systems, boot operations, and SD card configurations including emergency recovery procedures for IOS images.
Overview
Describes the flash file system as the primary file system for booting IE switches and explains the Swap Drive feature that allows SD cards to serve as backup storage for configurations and IOS XE images.
ROM monitor variables and configuration handling
Describes how ROM Monitor variables and configurations are stored in flash memory and explains the boot precedence hierarchy from image paths to removable media locations.
SD card operation
Describes hot-swappable SD card operations in Cisco IOS XE, including validation processes, boot precedence changes from release 17.10.1, and available boot loader commands.
Inserting and removing the SD card
Describes how to properly insert and remove SD cards from Cisco switches, including correct orientation, insertion technique, and hot-swappable behavior considerations.
Enable an SD card
Configure an SD card on a Cisco IOS XE switch to enable storage and file management capabilities.
Disable an SD card
Configure the system to disable an SD card on a Cisco IOS XE switch using either ROMMON mode or switch CLI mode.
Configure auto sync from internal flash to SD card
Configure auto sync from internal flash to SD card to automatically synchronize files at scheduled times.
Auto restore of switch configurations with SD swap drive
Configure automatic restore of a switch using the Swap Drive feature with an SD card.
Format the SD card to load Cisco IOx
Configure SD card partitions to run Cisco IOx applications or both Cisco IOS-XE and Cisco IOx applications on the switch.
Emergency recovery for Cisco IOS-XE image
Describes the emergency recovery process for restoring a Cisco IOS-XE image when a switch has corrupted files or is stuck in ROMMON mode.