October 2006
Files and Directories
43
Can I save changes to the Certified directory?
No. The
/flash/certified
directory is intended to store only
tested, reliable configuration and image files. Configuration
changes must be saved to the
boot.cfg
file in the
/flash/working
directory. Once those changes have been road-
tested, the contents of the
/flash/working
directory can be
copied to the
/flash/certified
directory via the
copy working
certified
command.
What happens when the switch boots?
During the boot process, the switch compares the contents of
the
/flash/working
and
/flash/certified
directories. Based on
this comparison, the switch determines which directory to use
as its running software.
Working and Certified Are Identical
If the software in the
/flash/working
and
/flash/certified
directories are completely identical, the switch considers the
software in both directories to be equally reliable. In this case,
the switch will run from the
/flash/working
directory.
When the switch is running from the
/flash/working
directory
software, configuration changes can be saved via the
write memory
command.
Working
Directory
boot.cfg
Hbase.img
Hrelease.img
Etc.
Working
Directory
boot.cfg
Hbase.img
Hrelease.img
Etc.
Certified
Directory
boot.cfg
Hbase.img
Hrelease.img
Etc.
Certified
Directory
boot.cfg
Hbase.img
Hrelease.img
Etc.
Working and Certified
contents are identical.
The switch runs
from Working.
