ROMMON lseek out of bounds and getdirent: lseek error

Question

Hello,
I have a 2600 router i indend to use as an access server. I doesnt have an IOS so i downloaded via tftp. I should see the file at dir flash:, but all i get are these error
System Bootstrap, Version 11.3(2)XA4, RELEASE SOFTWARE (fc1)
Copyright (c) 1999 by cisco Systems, Inc.
TAC:Home:SW:IOS:Specials for info
PC = 0xfff0a530, Vector = 0x500, SP = 0x680127b0
C2600 platform with 65536 Kbytes of main memory
rommon 1 > dir flash:
         File size           Checksum   File name
lseek out of bounds
getdirent: lseek error
rommon 2 >
And if i tried to download again the file, its failing because it seems that there aren't any space available in my flash. Heres the meminfo.
rommon 2 > meminfo
Main memory size: 64 MB.
Available main memory starts at 0x10000, size 65472KB
IO (packet) memory size: 0 percent of main memory.
NVRAM size: 32KB
rommon 3 >
Here's the download
rommon 14 > tftpdnld
          IP_ADDRESS: 172.16.15.223
      IP_SUBNET_MASK: 255.255.255.0
     DEFAULT_GATEWAY: 172.16.15.231
         TFTP_SERVER: 172.16.15.205
           TFTP_FILE: c2600-c-mz.123-23.bin
Invoke this command for disaster recovery only.
WARNING: all existing data in all partitions on flash will be lost!
Do you wish to continue? y/n:  [n]:  y
Performing tftpdnld over Fast Enet.
Interface is operating at: 10Mbps/FULL DUPLEX
Initializing interface.
Interface link state down.
Interface link state up.
ARPing for 172.16.15.205
ARPing for 172.16.15.205..
ARPing for 172.16.15.205
ARPing for 172.16.15.205..
ARPing for 172.16.15.205
ARPing for 172.16.15.205..
ARPing for 172.16.15.205
ARPing for 172.16.15.205..
ARPing for 172.16.15.205
ARPing for 172.16.15.205..
ARPing for 172.16.15.205
ARP reply for 172.16.15.205 received.  MAC address 48:5b:39:ee:dd:ff
Receiving c2600-c-mz.123-23.bin from 172.16.15.205 !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
File reception completed.
TFTP flash copy: Error, image size (18522732) larger than flash (8388608).
rommon 15 >
Even if im not seeing some file/s on my dir flash: command i executed boot nevertheless.
rommon 15 > boot
lseek out of bounds
getdirent: lseek error
boot: cannot determine first file name on device "flash:"
So tried a network boot
rommon 16 > boot c2600-c-mz.123-23.bin 172.16.15.205
lseek out of bounds
getdirent: lseek error
an alternate boot helper program is not specified
(monitor variable "BOOTLDR" is not set)
and unable to determine first file in bootflash
loadprog: error - on file open
boot: cannot load "c2600-c-mz.123-23.bin 172.16.15.205"
rommon 17 >
Here's what i think. The first file dowload could be corrupted and it eats up the space on my flash.
My question is how can I reformat the flash so that I can redownload the IOS? And if in case that fails also, any other way i can recover this machine
Thanks,
Jon

Answer 1

Hi Sandee,
After several attmepts, the same errors
rommon 2 > xmodem c2600-bin-mz.123-18.bin
Do not start the sending program yet...
         File size           Checksum   File name
lseek out of bounds
getdirent: lseek error
WARNING: All existing data in bootflash will be lost!
Invoke this application only for disaster recovery.
Do you wish to continue? y/n  [n]:  y
Ready to receive file c2600-bin-mz.123-18.bin ...
Erasing flash at 0x607c0000
program flash location 0x60800000program flash: address 0x60800000 not valid - aborting
rommon 3 >
I've tried the ios and the same proceedure on another router and even on the gns3, it works fine. Im thinking of reformatting the flash, but couldn't find the right procedure on a cisco 2620 router.