Force configuration restore

The cfg-restore command fails if a reboot is required. The Configuration restoration is not allowed as the configuration has reboot required commands error is displayed, along with lines requiring a reboot. The force option in the cfg-restore command allows a user to force a reboot. The command is: cfg-restore {flash | tftp | sftp} <FILE-NAME> force.

Before reboot, config is the active configuration. After the device reboots, the backup file becomes the new active configuration.

id | act pri sec | name
---+-------------+---------------
 1 |  *   *   *  | config
 2 |             | def
 3 |             | golden_config
 4 |             |
 5 |             |

switch(config)# cfg-restore flash golden_config
Current running-configuration will be replaced with 'golden_config'.
Continue (y/n)? y
Configuration restore is in progress, configuration changes are temporarily
 disabled.
Configuration restoration is not allowed as the configuration has reboot required commands.

switch(config)# show cfg-restore status
 Status                 : Failed
 Config File Name       : golden_config
 Source                 : Flash
 Time Taken             : 5 Seconds
 Last Run               : Mon Oct 30 23:03:19 2017

 Recovery Mode          : Enabled
 Failure Reason         : Reboot required commands present.
 Command : console terminal none

 Number of Add Commands    : 0
 Number of Remove Commands : 1

Time Taken for Each Phase :
      Calculating diff     : 3 Seconds
      Adding commands      : 0 Seconds
      Removing commands    : 0 Seconds

switch# cfg-restore flash golden_config force
Device may be rebooted if the configuration file has reboot required or
system-wide change commands. Do you want to continue  (y/n)?
Current running-configuration will be replaced with 'golden_config'.
Continue (y/n)?
Configuration restore is in progress, configuration changes are temporarily
disabled.

Successfully applied configuration 'golden_config' to running configuration.

Rebooting switch...

In the preceding output, Command : console terminal none shows that cfg-restore failed because a reboot is required.

After the switch reboots and comes up, the golden_config becomes the active configuration.

NOTE:

In case of a switch reboot, the switch comes up with the configuration associated with the primary or secondary.

 id | act pri sec | name
 ---+-------------+------------------------------------------------
  1 |      *   *  | config
  2 |             | def
  3 |  *          | golden_config
  4 |             | 
  5 |             |


switch# show cfg-restore status
 Status                 : Success
 Config File Name       : default
 Source                 : Flash
 Time Taken             : 1 Seconds
 Last Run               : Mon Oct 23 07:17:03 2017

 Recovery Mode          : Enabled
 Failure Reason         : -

 Number of Add Commands    : 0
 Number of Remove Commands : 5

Time Taken for Each Phase :

      Calculating diff     : 1 Seconds
      Adding commands      : 0 Seconds
      Removing commands    : 0 Seconds

NOTE:

Time taken for adding and deleting commands is zero, as the switch reboots. It is similar to downloading a startup-configuration to the device.