1- download ios cat3k_caa-universalk9.16.12.10a.SPA.bin
2-when enter in romon use the comand :
set
3-Check the options below that may be blocking manual booting and writing to flash
and change them
several option will be available , check these and change
BOOT_LOADER_UPGRADE_DISABLE=1 change to 0 - comand: BOOT_LOADER_UPGRADE_DISABLE 0
MANUAL_BOOT=no change to yes - comand: MANUAL_BOOT yes
and this will permit manual boot on command (in case you doesnt leave romon condition)
4- switch: boot usbflash0:cat3k_caa-universalk9.16.12.10a.SPA.bin
5-after load comands to copy o ios comand below:
copy usbflash0:cat3k_caa-universalk9.16.12.10a.SPA.bin flash:
6-check files on flash: to confirmation of copy results
dir flash:
7- install the IOS with comand below:
switch: install add file flash:cat3k_caa-universalk9.16.12.10a.SPA.bin activate commit
8-after copy sequence will appear a question change packages.conf , choose yes:
change packages.conf yes
(may appear come log in the middle)
9-reload question , choose yes
procced with reload yes
10-check files with comand below and verify .pkg:
dir flash:
(all .pkg will appear on flash:)
11-after reload error will appear and will come back to romon , restore the old boot condition to automatic boot
configuring the following with set command :
set MANUAL_BOOT no
12- check if set command is configured to old condition using set comand
and verify the set MANUAL BOOT =no
(from now on the boot flash:ios willl be forbiden again)
13-reload the sistem command:
switch: reset
(RELOAD WILL BEGIN)
TEST AGAIN AFTER RELOAD , if this isnt working WITH ANOTHER RELOAD COMMAND nd the old version appears proceed:
switch> en
switch#conf t
switch(conf)#no boot system
switch(conf)# do wr
switch(conf)#boot system: flash:16.12.10a
switch(conf)#do wr
switch(conf)#end
