Here I would show you how to console into switch/router on your apple laptop. Unlike windows you don’t need any additional software like Putty.
1. Click Go > Utilites from the top menu.
Networking. Developement. Design.
Here I would show you how to console into switch/router on your apple laptop. Unlike windows you don’t need any additional software like Putty.
1. Click Go > Utilites from the top menu.
Do the regular routine of unplugging the power-cord and holding the mode button and then plugging back until you land in recover mode (switch:)
Now enter the following commands
switch: SWITCH_IGNORE_STARTUP_CFG=1
switch: SWITCH_DISABLE_PASSWORD_RECOVERY=0
switch: boot
After reboot
Switch(config)#no system ignore startupconfig switch all
Switch(config)#system disable password recovery switch all
Switch#copy running startup
Find the step by step solution here.
Note: You can’t do password recovery on most of the AP so you will need to factory reset. If it will be connected to a WLC it can then copy the new config.
Step 1: Download and copy the latest IOS (XE) to the 3850 flash via USB or TFTP.
Step 2: Check the mode (Install or Bundle) of the switch by entering following command:
Switch#show version | begin Switch Ports
The out put will be as below:
Note: If the Switch is not in INSTALL Mode it’s highly recommended to switch INSTALL mode from BUNDLE mode. Click here to find out how or enter the below commands:
# software expand running to flash: (config)#boot system flash:packages.conf
Step 3: Enter the following command to start installing the new IOS using the new code on the flash
Switch#:software install file flash:<New_IOS_File_Name>.bin
Example: Switch#:software install file flash:cat3k_caa-universalk9.SPA.03.03.00.SE.150-1.EZ.bin
Then following will be shown:
Step 4: enter yes and hit enter.
NOTE: Ran into some issue booting 3850. This might be helpful if your Catalyst 3850 Fails to Boot.
3850-access#show boot ————————— Switch 1 ————————— Current Boot Variables: BOOT variable = flash:packages.conf; Boot Variables on next reload: BOOT variable = flash:packages.conf Allow Dev Key = yes Manual Boot = yes Enable Break = no
Notice it’s set to Manual Boot = yes
you need to change that to NO
#conf t (config)#no boot manual #reload
If this also doesn’t fix the boot issue refer the following blog post here.
Step1: Reboot ASA
Step 2: Wait till the you can see following “Use BREAK or ESC to interrupt boot.” and then hit the ESC key, works on MAC/Terminal as well. (see below)
Step 3: Then you should land in “rommon #0>”
Step 4: Change the confreg valu to 0x41 as it tells to ignore its saved (startup) configuration upon boot
rommon #2> confreg 0×41
Step 5: reboot
rommon #2> reboot
Step 6: After the reboot you need to change the confreg value back to 0x01 and reboot.
ciscoasa(config)# config-register 0x01
ciscoasa# reboot
Here are the quick easy steps to recover your 3850 switch password.
1. Power cycle the switch, press and hold the Mode button. Hold the mode button for approx. 15-30 sec, the Status LED will go amber. On the console make sure you are in Boot Loader mode.
Switch: flash_init
Switch: SWITCH_IGNORE_STARTUP_CFG=1
Switch: boot
2. After switch boots up.
Switch# copy startup-config running-config
Switch# configure terminal
Switch(config)# no system ignore startupconfig switch all
Switch(config)# exit
Switch# write
Here i will show how to step by step recover a password on N 5k (ex. N5548).
1. Do a hard reboot by unplugging the power cable.
2. Careful watch the switch boot up and when it gets to “Loading system software” (see below) and send break command “Ctrl + ]”.
Today I had to update a 3560x but when I consoled into the switch it was at Boot Loader prompt (switch:) and I wasn’t sure so I tried to boot and this is what happened.
switch: boot Loading "flash:/c3560e-universalk9-mz.122-53.SE2/c3560e-universalk9-mz.122-53.SE2.bin"...flash:/c3560e-universalk9-mz.122-53.SE2/c3560e-universalk9-mz.122-53.SE2.bin: no such file or directory Error loading "flash:/c3560e-universalk9-mz.122-53.SE2/c3560e-universalk9-mz.122-53.SE2.bin" Interrupt within 5 seconds to abort boot process. Boot process failed... The system is unable to boot automatically. The BOOT environment variable needs to be set to a bootable image.