09-14-2018 04:16 AM - edited 03-08-2019 04:09 PM
Hello,
Total noob here. Just got a C4948 switch and while I was trying to restore to factory defaults I deleted the OS. I am in rommon version 12.2. I then setup a tftp server with SolarWinds and am able to ping it successfully from rommon per following these instructions. I tried to run
boot tftp://192.168.10.2/cat4500-ipbasek9-mz.150-2.SG11.bin
which gave a timeout error. I then just listed my available commands in rommon and I am not seeing tftpdnld or xmodem. This is all I have with "?"
rommon 50 >? alias set and display aliases command boot boot up an external process clear clear configurations, use 'clear help' for more info confreg configuration register utility dev list the device table with physical device information dir list filesystem information help monitor builtin command help history monitor command history macstats print management port MAC statistics counters meminfo main memory information ping ping utility to determine network connectivity repeat repeat a monitor command reset system reset set show/set environment vars, use 'set help' for more info sprom serial eprom operations sysret print out info from last system return unalias unset an alias unset unset a monitor variable version display Rom Monitor version information
and this is what environment variables I have
rommon 51 >set PS1=rommon ! > ConfigReg=0x0102 RommonVer=12.2(31r)SGA7 IP_SUBNET_MASK=255.255.255.0 Gateway=192.168.10.1 IpAddr=192.168.10.3 Netmask=255.255.255.0 Broadcast=192.168.10.255 TFTP_SERVER=192.168.10.2 TFTP_FILE=cat4500-ipbasek9-mz.150-2.SG11.bin DEFAULT_GATEWAY=192.168.10.1 IP_ADDRESS=192.168.10.3
Did I brick my router? Is there a way I can restore it? It doesn't have a USB input so I can't load the image manually and I haven't found another way. Also running dir slot0: says that the device has been taken out or removed. Also running dir bootflash: shows everything is empty.
EDIT:
I tried to set the configuration register to 0x2101 via the command "confreg 0x2101" and nothing changes in the env vars. I also tried resetting via confreg and following the options to change the boot charectoristics and ignore system info and still am not able to get out of configuration register 0x101.
All help much appreciated.
Solved! Go to Solution.
09-15-2018 04:14 AM
Thank you for the help. I got it working. It occurred to me that I pinging the tftp wasn't enough, I had to open port 69 on the firewall to get it loaded.
Just got it running. Thank you so much for your time.
09-14-2018 04:53 AM
You can use Terminal to restore the IOS image
follow below URL :
https://www.cisco.com/c/en/us/support/docs/switches/catalyst-4000-series-switches/24061-149.html
09-14-2018 04:55 AM - edited 09-14-2018 07:11 PM
09-14-2018 04:59 AM
The link is not working, or what is wrong ?
have you followed the steps mentioned that link ?
there is good post for your reference :
https://community.cisco.com/t5/switching/catalyst-4948-problem/td-p/1611842
09-14-2018 05:32 AM - edited 09-14-2018 05:40 AM
Thank you for your help.
The first link is indeed broken to me in chrome. I just opened it in Edge and it works. I followed it with a few of the confreg configurations it recommended to no avail.
On the second link (the post), I am not able to run the "config-register 0x2101" command as it returns "monitor: command "config-register" not found". When I simply run confreg and follow the inputs per the post, it uses 0x101 (0x0101 in env vars) and the results don't change.
How do I change the configuration register if it is not accepting "config-register" command?
09-15-2018 04:14 AM
Thank you for the help. I got it working. It occurred to me that I pinging the tftp wasn't enough, I had to open port 69 on the firewall to get it loaded.
Just got it running. Thank you so much for your time.
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