Saving the current configuration before a software upgrade
Before updating to a new version of software, follow these steps:
Procedure
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Enter the
show config files
command to display your current configuration files:switch(config)# show config files Configuration files: id | act pri sec | name ---+-------------+-------------------- 1 | * * * | config1 2 | | config2 3 | |
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To save a configuration file for software version K.12.43, for example, type:
switch(config)# copy config config1 config configK1243.cfg
Choose any name for the saved configuration file that you prefer.
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Display the configuration files as shown in the following example. Note the newly created configuration file listed.
switch(config)# show config files Configuration files: id | act pri sec | name ---+-------------+---------------------- 1 | * * * | config1 2 | | config2 3 | | configK1243.cfg
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Update the switch to the desired version, for example, K.12.51. Enter the
show flash
command to see the results. The switch is now running the software version K.12.51.switch(config)# show flash Image Size(Bytes) Date Version Build #: ----- ---------- -------- ------- ------- Primary Image : 6771179 04/17/08 K.12.51 304 Secondary Image : 7408949 11/06/08 K.12.43 123 Boot Rom Version: K.12.12 Default Boot : Primary
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To run the prior software version (K.12.43 in this example), type:
switch(config)# boot system flash secondary config configK1243.cfg
- After rebooting, the switch is running software version K.12.43 and is using the configuration file that you saved for this software version, configK1243.cfg.
- You can also save the K.12.43 configuration file on a TFTP server. To reload the K.12.43 version of the software again, reload the configuration file before doing the reload.