01-29-2020 09:25 PM
So I'm brand new to Cisco awesome equipment though. I bought a switch and when I first booted it up it was stuck in a boot-loop. So I researched and read and through trial and error I got it unstuck and the correct image in place. So I am configuring the switch have not done a tftp server yet and follow a wrong procedure and assign the wrong ip address to the switch I was supposed to be doing a loop-back. So I figured I would just start over good practice right. I'm trying to self teach myself Cisco here that should tell you I'm not the brightest crayon in the box. So I do a clear config all and it works great so great that even though I had supposedly done a running config save I now have no boot image no slot0 image and no boot system flash bootflash image. I did however make me a tftp server with tftp64 but cant for the life of me get the command right for Rommon to drop me an image. Hell at one point I could see on a reset it said boot booted from 0x010 cat4500-entservicesk9-mz.150-2.SG10.bin it was right there just not in the right position I have been driving myself crazy here could someone please throw me in the right direction?
Rom Monitor Program Version 12.2(31r)SGA4
Supervisor: WS-C4948 Chassis: WS-C4948
Hardware Revisions - Board: 6.0 CPLD: 4 Dagobah: 225
MAC Address : 00-15-c6-de-ef-ff
IP Address : 192.168.0.69
Netmask : 255.255.255.0
Gateway : 192.168.0.1
TftpServer : 192.168.0.6
Main Memory : 256 MBytes
***** The system will autoboot in 5 seconds *****
Type control-C to prevent autobooting.
. .
Established physical link 100MB Full Duplex
Network layer connectivity may take a few seconds
. . .
******** The system will autoboot now ********
config-register = 0x102
Autobooting using BOOT variable specified file.....
Could not find a valid file in BOOT environment variable.
BOOT variable can be set from IOS. To find currently set
Rom Monitor variables, please type 'set' command.
For help on choosing a boot method, type 'confreg' command.
rommon 1 >
Solved! Go to Solution.
01-30-2020 06:32 PM
alright thank you again. That's the same file it was stuck on doing a loop the first time I turned it on.
01-30-2020 07:02 PM
So I got home from work and it seems my switch somehow reconfigured itself while I was at work. This is crazy.
For help on choosing a boot method, type 'confreg' command.
rommon 1 >cdelete /f /r bootflash:cat4500-ios-promupgrade-122_31r_SGA4delete /f
/r bootflash:cat4500-ios-promupgrade-122_31r_SGA4
monitor: command "cdelete" not found
rommon 2 >erase /f /r bootflash:cat4500-ios-promupgrade-122_31r_SGA4
monitor: command "erase" not found
rommon 3 >clear /f /r bootflash:cat4500-ios-promupgrade-122_31r_SGA4
Clear commands:
clear boot clear BOOT variable
clear bootldr clear BOOTLDR variable
clear config use 'clear config help' for more info
clear ip use 'clear ip help' for more info
rommon 4 >
Im not sure which one to use
01-30-2020 07:20 PM
1. Boot the appliance into IOS: boot bootflash:cat4500-entservicesk9-mz.150-2.SG10.bin
2. Delete the ROMMON upgrade file: delete /f /r bootflash:cat4500-ios-promupgrade-122_31r_SGA4
3. Change the config-register value:
conf t config-register 0x2101 end wr
4. Reboot
Discover and save your favorite ideas. Come back to expert answers, step-by-step guides, recent topics, and more.
New here? Get started with these tips. How to use Community New member guide