Cisco Cisco IOS XR Software Release 3.2

This procedure is applicable to IOS XR software only.

If you typed the show install rollback ? command and noted the latest rollback point available, and you 
would like to roll back to that point, then you can skip Step 1 and Step 2 in the following procedure. 

Enter admin EXEC mode, as shown in the following example:

RP/0/RP0/CPU0:router# admin

In admin EXEC mode, type the show install rollback ? command to obtain the list of available rollback 
points, as shown in the following example:

RP/0/RP0/CPU0:router#(admin)# show install rollback ? 

Type the show install rollback point-id command to locate the rollback point you want to go back to, 
as shown in the following example. Replace the point-id argument with the appropriate install rollback 
point ID number.

RP/0/RP0/CPU0:router#(admin)# show install rollback point-id 

You must run the show install rollback point-id command with a valid rollback point number. The 
command output shows list of active packages for that rollback point.

Enter the install rollback point-id sync command to perform the rollback operation, as show in the 
example that follows. Replace point-id with the appropriate installation point ID number.

RP/0/RP0/CPU0:router(admin)# install rollback point-id sync 

The sync keyword prevents the user from issuing any other commands while the installation is 
in process.

Based on the set of packages being activated and deactivated as part of the rollback operation, one or 
more nodes may be reloaded. This operation could take some time. 

If you are downgrading from 3.2.2 to 3.0.1 version of Cisco IOS XR software, use the procedure in the 

 section that follows to restore the 

bootflash on RP, LC, and SP nodes.

To ensure that a router comes up as quickly as possible after a reload, reformat the bootflash: on the RP, 
LC, and SP nodes that are present in the router. The following sections describe how to restore the 
bootflashes on RP, LC, and SP nodes: