Cisco CSR 1000v Series Software Configuration Manual page 218

Loading the New System Image from the Cisco IOS XE Software
Example:
Router# configure terminal
Router(config)#
Step 3 no boot system
Use this command to delete all entries in the bootable image list, which specifies the order in which the router attempts
to load the system images at the next system reload or power cycle:
Example:
Router(config)# no boot system
Step 4
boot system bootflash:system-image-filename.bin
If the new system image is the first file or the only file displayed in the dir bootflash: command output in Step
Note
1, you do not need to perform this step.
Use this command to load the new system image after the next system reload or power cycle. For example:
Example:
Router(config)# boot system bootflash:
csr1000v-universalk9.03.10.00.S.153-3.S-ext.SPA.bin
Step 5 (Optional) Repeat the previous step to specify the order in which the router should attempt to load any backup system
images.
Step 6
exit
Use this command to exit global configuration mode:
Example:
Router(config)# exit
Router#
Step 7
write
or
write memory
Example:
Router# write memory
This step is required beginning with Cisco IOS XE Release 3.9S if upgrading to a later version. Entering the
Note
write or write memory command updates the GRUB menu list of images available on the bootflash disk.
Step 8
show version
Use this command to display the configuration register setting:
Example:
Router# show version
Cisco Internetwork Operating System Software
.
.
.
Configuration register is 0x0
Cisco CSR 1000v Series Cloud Services Router Software Configuration Guide
206
Upgrading the Cisco IOS XE Software