After accidently deleting existing IOS from 9200 switch and then rebooting – the switch will have no boot IOS and hence you cannot access the existing configuration.
Check output of show boot
Instead you will see below prompt in CLI Console
Switch:
switch: help
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arp Dump or Clear ARP Table
boot Load and boot an executable image
cat Display text content from a file
copy Copy a file
dir List filesystems or a directory on a filesystem path
help List command information
history Show command history
idprom Show idprom data
ping Ping use ICMP protocol to get an ICMP ECHO_RESPONSE from host
ping6 Ping use ICMP protocol to get an ICMP ECHO_RESPONSE from host
reset Reset entire system
set Set an environment variable value
unset Unsets an environment variable
version Show sboot version and runtime info
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So now go to cisco software download page and download the latest IOS and load onto USB and then insert USB onto switch USB port.
Then to check all drives on switch
dir
usage: dir <path-to-directory>
supported filesystem(s):
flash: ro flash
usbflash0: rw front-panel USB 0
usbflash1: rw front-panel USB 1
Then use below command
boot usbflash0:cat9k_lite_iosxe.17.11.01.SPA.bin
The new image will start to load and finally the switch will boot with new image and you will see the running config is not deleted.
Now check boot configuration using show boot & dir flash:
then configure "boot system switch all flash:packages.conf" so that switch would boot with the latest image in flash
save config and reload to check
