Cisco Cisco ASA 5525-X Adaptive Security Appliance Guide De Dépannage

Removing and Installing the User CompactFlash

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Note: Before you try to manually replace the card, you are advised to contact the Cisco TAC for further
troubleshooting. The device should be under valid Cisco contract in order to open a TAC service request.

In this section, a list of widely known error messages related to the flash filesystem corruption are shown.

This error results when the show flash command is executed. It does not show any files in the output but this
error message. This is a sample output of the command:

ASA#show disk0:

−#− −−length−− −−−−−date/time−−−−−− path

23273472 bytes available (39673856 bytes used)

This behavior has been logged in Cisco bug ID CSCsl12010 (registered customers only) . When free memory
is low (close to 0), show flash does not indicate any files and recommends to run FSCK operation. In this
situation, wait for some time so that some memory becomes available by the running applications. Run the
show flash command again and see if some memory is available. If the previous situation prevails, run the
FSCK utility. At times, this error can also result when you try to save the configuration on the device.

Another bug, Cisco bug ID CSCsg16431 (registered customers only) , has been filed to address this behavior
in the case of FWSM. This error results after an upgrade on the FWSM and can be resolved after you run the

format

 utility.

This error resulted when this command is issued:

ASA# dir all−filesystems

%Error opening disk0:/ (No such device)

%Error opening system:/ (No such device)

%Error opening cache:/ (No such device)

This error resulted when this command is issued:

ASA# fsck disk0:

Initializing disk0: cache, please wait...Failed (Invalid DOS media or no media in slot

error).

Internal error, inode table initialization for disk0: failed with error Invalid DOS media

or no media in slot

%Error checking disk0: (Invalid DOS media or no media in slot)

WARNING: Restoring security context mode failed.

This error resulted when this command is issued:

ASA# show flash: