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Chapter 2
Before You Begin
S e n d d o c u m e n t a t i o n c o m m e n t s t o m d s f e e d b a c k - d o c @ c i s c o . c o m .
Formatting Flash Devices and File Systems
By formatting a Flash devices or a file system, you are clearing out the contents of the device or the file
system and restoring it to its factory-shipped state.
See the
page
Initializing Internal bootflash:
When a switch is shipped, the init system command is already performed and you do not need to issue
it again. Initializing the switch resets the entire internal Flash device and erases all data in the bootflash:
file system. The internal Flash device is composed of several file systems with bootflash: being one of
them. All files in bootflash: are erased and you must download the system and kickstart images again.
After issuing an init system command, you do not have to format the bootflash: again because bootflash:
is automatically formatted.
The init system command also installs a new loader from the existing (running) kickstart image. You
Note
can access this command from the
If your system has an active supervisor module currently running, you must issue the system standby
Caution
manual-boot command in EXEC mode on the active supervisor module before issuing the init system
command on the standby supervisor module to avoid corrupting the internal bootflash:. After the init
system command completes on the standby supervisor module, issue the system no standby
manual-boot command in EXEC mode on the active supervisor module.
If bootflash: is found corrupted during a boot sequence, you will see the following message:
ERROR:bootflash: has unrecoverable error; please do "format bootflash:"
Use the format bootflash: command to only format the bootflash: file system. You can issue the format
bootflash: command from either the
If you issue the format bootflash: command, you must download the kickstart and system images again.
Formatting External CompactFlash
Be sure to format an external CompactFlash device before using it to save files or images.
You can verify if the external CompactFlash device is formatted by inserting it into slot0: and issuing
the dir slot0: command.
•
•
OL-6973-03, Cisco MDS SAN-OS Release 2.x
"About Flash Devices" section on page 2-20
2-22.
If the external CompactFlash device is already formatted, you can see file system usage information
(along with any existing files).
If the external CompactFlash device is unformatted (corrupted), you will see the following message:
Device unavailable
In this case, you need to format the CompactFlash device using the format slot0: command.
and the
"Using the File System" section on
prompt (see
switch(boot)#
or the
switch#
switch(boot)#
Cisco MDS 9000 Family Configuration Guide
Formatting Flash Devices and File Systems
Chapter 6, "Software
Images").
prompts.
2-21
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