boot switch

This command switches between primary and secondary installations.

Syntax

boot switch

Guidelines

A firmware upgrade with the boot image command retains current configuration data, including activated features, which allows you to restore the appliance (rolled back) to a known, stable state if necessary.
  • The previous firmware image and associated configuration data is the secondary installation.
  • The newly installed firmware image and associated configuration data is the primary installation.

The boot switch command is not available on an appliance that is part of a high availability group.

When you switch between firmware images that contain different versions of component firmware, the switch can take approximately 20 minutes. During this switch operation, do not power off or restart the appliance. Examples of component firmware includes, but is not limited to, the BIO, BMC or RAID controller for the appliance.

You can use the boot switch command to transition between the newly installed and previously active firmware versions.

Configuration edits that are made to a selected image are local and are not included during the rollback operation. It is possible to issue the boot switch command twice, which returns the appliance to the newly installed version.

While you can use the boot delete command to delete the secondary installation, keep in mind that its deletion prevents firmware rollback as provided by the boot switch command. Do not delete of the secondary installation unless you are working with IBM® Support.

Example

The rollback operation failed. The secondary installation was deleted with the boot delete command. 
# boot switch
% Firmware roll-back failed: Switch active firmware failed:
Secondary install not available