i've killed one of my routers any doctors out there

Any ideas i erased the flash, i think, seemed like a good idea at the time

System Bootstrap, Version 11.3(2)XA4, RELEASE SOFTWARE (fc1)
Copyright (c) 1999 by cisco Systems, Inc.
TAC:Home:SW:IOS:Specials for info
C2600 platform with 32768 Kbytes of main memory

device does not contain a valid magic number
boot: cannot open "flash:"
boot: cannot determine first file name on device "flash:"

System Bootstrap, Version 11.3(2)XA4, RELEASE SOFTWARE (fc1)
Copyright (c) 1999 by cisco Systems, Inc.
TAC:Home:SW:IOS:Specials for info
C2600 platform with 32768 Kbytes of main memory

device does not contain a valid magic number
boot: cannot open "flash:"
boot: cannot determine first file name on device "flash:"

System Bootstrap, Version 11.3(2)XA4, RELEASE SOFTWARE (fc1)
Copyright (c) 1999 by cisco Systems, Inc.
TAC:Home:SW:IOS:Specials for info
C2600 platform with 32768 Kbytes of main memory

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Comments

jvax

You may want to set up a TFTP server and copy one of your other router's IOS image to it.
Then you should still be able to enter rommon on the router whose flash you erased, in order to copy the IOS image from TFTP.

Ciscopimpenator

Aaaah....

To be a newbie again.

-Ciscopimpenator

iproute

jvax wrote:

You may want to set up a TFTP server and copy one of your other router's IOS image to it.
Then you should still be able to enter rommon on the router whose flash you erased, in order to copy the IOS image from TFTP.

This may sound hard, but it will be a very good learning experience. I highly recommend it

Remember: context sensitive help is your friend.

aueddonline

cheers that doesn't sound so bad now i was in the middle of setting up a tftp server anyway so it'll give me something to do with it

Paul Boz

Ciscopimpenator wrote:

Aaaah....

To be a newbie again.

-Ciscopimpenator

In the grand scheme of things we're all newbies, chill out.

Darthn3ss

no big deal as long as you have a copy of the IOS.

my advice, when you get into rom mon and start to configure network settings, leave capslock on.

blackmage439

aueddonline wrote:

Any ideas i erased the flash, i think, seemed like a good idea at the time

Haha! I did this my FIRST DAY in CCNA 3... I had come off of a 3-month break from CCNA courses and I forgot the syntax for erase the startup config. I remembered "hey, the config is stored in flash, so ERASE FLASH must be the command!"

Boy did I feel like an idiot...

Ciscopimpenator

Paul Boz wrote:

Ciscopimpenator wrote:

Aaaah....

To be a newbie again.

-Ciscopimpenator

In the grand scheme of things we're all newbies, chill out.

I meant it in a nice way. I like being a newbie. There is nothing like learning something new.
Good luck to you

-Ciscopimpenator

jvax

aueddonline wrote:

cheers that doesn't sound so bad now i was in the middle of setting up a tftp server anyway so it'll give me something to do with it

Oh and if you get stuck, just google up smth like "router ios upgrade" and follow one of the guides you find. I know that's how I learned about rommon, boot registers etc...
Personally, I learn way better when I try to fix something I screwed up. Good luck and let us know how it went.

Webmaster

Although I can't remember accidentally erasing the Flash contents on a Cisco device, when I got my first PC, almost 20 years ago, one of the things I did after only a week or so is "format c:", which was a great learning experience (having to re-install DOS, modify autoexec.bat and config.sys... and of course knowing not to do it again

). Every CCNA student should erase the Flash at least once for practice.

iproute

Webmaster wrote:

Although I can't remember accidentally erasing the Flash contents on a Cisco device, when I got my first PC, almost 20 years ago, one of the things I did after only a week or so is "format c:", which was a great learning experience (having to re-install DOS, modify autoexec.bat and config.sys... and of course knowing not to do it again ). Every CCNA student should erase the Flash at least once for practice.

Do it more than once and restore the IOS in different ways. I've done it 2 times, once using TFTP another using XMODEM (slow as hell

)

jvax

iproute wrote:

Do it more than once and restore the IOS in different ways. I've done it 2 times, once using TFTP another using XMODEM (slow as hell )

Never had the guts to try it using XMODEM. yet!

One more thing I learned about flash the hard way was partitioning. It was when for the sake of curiosity, I switched slots for the 2 flash modules on my first 2501 with a 16MB image on them. I had to reload into 0x2101 to make them read/write, erase both modules then repartition them as one, copy back the image I backed up just in case, then go back to 0x2102. Great experience

spike_tomahawk

How about this....going to update IOS and erasing the flash and then finding out that you don't have enough memory to hold the new one and didn't back up the old one..........struggle, struggle and then success.. yeah that was me.. live and LEARN.

blackmage439

jvax wrote:

Never had the guts to try it using XMODEM. yet!

It takes at least an hour to complete, and that's only if you can set the transfer rate high enough... Ugh. We had to do a lab exercise in one of my CCNA classes based on ROMMON/XMODEM. I think I started the lab, worked on something else, and finally came back about 2hrs later... I am not looking forward to that again anytime soon.

jvax

DarbyWeaver wrote:

Also turn another router into a TFTP, RCP, FTP, and even HTTP Server that you can download from.

Now THAT I am going to try soon! Excellent advise

blackmage439 wrote:

I am not looking forward to that again anytime soon.

That's exactly what puts me off. I am eventually going to try it once though.

So aueddonline, how's that IOS restore comming out?

Rearden

It took me some time before I realized that I had to explicitly allow the other router to act as a tftp server. I couldn't imagine at all why it wasn't working.

aueddonline

i've got the 2600 that's in rommon connected to the tftp server using an ethernet into ethernet 0 i've set some settings on rommon but not getting anywhere, i've got all the addresses on the same segment have a look.

rommon 23 > set
PS1=rommon ! >
RET_2_RTS=
BSI=0
RET_2_RCALTS=0
ip_subnet_mask=255.255.224.0
tftp_server=172.16.96.22
tftp_file=c2600-io3-mz.123-3.bin
0=4
tftp_checksum=0
ethernet_0=172.16.96.31
default_gateway=172.16.96.10
?=0
ip_address=172.16.96.30

i don't quite get how it's gonna know where to get the image and normally the roter wouldn't have an ip it would just be the interfaces, right?
It's not connected to the default gateway ethier i've tried leaving that blank, because there is only one ethernet port on these routers i can't connected it to it's default gateway and have the gateway connected to the server, all confusing anyone with a brain out there, be my guest

mikej412

The variables names are case sensitive - use uppercase.

http://www.cisco.com/warp/public/471/76.html

First, you must set ROMmon environment variables prior to the TFTP download. All variable names are case sensitive.

You can view the ROMmon environment variables by using the set command, as shown here:

    rommon 3 > set 
        PS1=rommon ! > 
        IP_ADDRESS=172.18.16.76 
        IP_SUBNET_MASK=255.255.255.192 
        DEFAULT_GATEWAY=172.18.16.65 
        TFTP_SERVER=172.18.16.2 
        TFTP_FILE=quake/rel22_Jan_16/c2600-i-mz

mrhaun03

Webmaster wrote:

Although I can't remember accidentally erasing the Flash contents on a Cisco device, when I got my first PC, almost 20 years ago, one of the things I did after only a week or so is "format c:", which was a great learning experience (having to re-install DOS, modify autoexec.bat and config.sys... and of course knowing not to do it again ). Every CCNA student should erase the Flash at least once for practice.

I remember in my first month of school we told this one guy format c: at the DOS prompt would fix his problem. It definitely fixed it.

aueddonline

**** it works i can't believe the pain is over............. thanks man it was that upper case thing, god, what a day!

aussiecoptic

I have the same problem but I don't have ios for 2600, I download one form internet but keep getting out of memory

mikej412

aussiecoptic wrote:

keep getting out of memory

How much flash memory does your router have?
How much DRAM memory does your router have?
How big is the image your're trying to fit into that memory?
What are you doing when you get the "out of memory" error?

aussiecoptic

Bellow is the message am getting and it keep trying to decompress the image:

Configured I/O memory percentage was too large. Using 10 percent.

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cisco Systems, Inc.
170 West Tasman Drive
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Cisco Internetwork Operating System Software
IOS (tm) C2600 Software (C2600-DO3S-M), Version 12.0(5)T1, RELEASE SOFTWARE (fc
1)
Copyright (c) 1986-1999 by cisco Systems, Inc.
Compiled Tue 17-Aug-99 13:18 by cmong
Image text-base: 0x80008088, data-base: 0x80CB67B0

SYSTEM INIT: INSUFFICIENT MEMORY TO BOOT THE IMAGE!

System Bootstrap, Version 11.3(2)XA4, RELEASE SOFTWARE (fc1)
Copyright (c) 1999 by cisco Systems, Inc.
TAC:Home:SW:IOS:Specials for info
C2600 platform with 24576 Kbytes of main memory

program load complete, entry point: 0x80008000, size: 0x6d7ba0
Self decompressing the image :

mikej412

aussiecoptic wrote:

Configured I/O memory percentage was too large. Using 10 percent.

You didn't say how big the image is.

So based on what you did post -- you can try setting the configuration register to 0x2142 (like for password recovery) and bypass the startup config. If it boots, then the problem is in your startup configuration.

aussiecoptic

thanks for reponding,

the is image is 7MB c2600-do3s-mz.120-5.t1, I delete the ios from flash and I don't have backup, I download tat one form the internet and it look like to big for the memory, I can't find IOS to replace the corupt oen and CISCO required login id/password to download ios from their web site.......