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RE: upgrading IOS posted 06/05/2001
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It looks like the flash SIMMs might have different capacities? Depending
on the order they're installed in and the boot ROM revision, what the
boot ROM reports may not be what you have access to.

For example, I've seen a situation where 8 Meg was installed in slot 0
and 4 Meg in slot 1. The boot ROM reported 16 Meg and would take and
boot an image that was smaller than 12 Meg.

If the order of the SIMMs were reversed, the ROM would only report and
allow access to 4 MB.

I must admit, I've never seen this before: <<address space sized on CPU

Good luck,


-----Original Message-----
From: nobody@xxxxxxxxxxxxxx [mailto:nobody@xxxxxxxxxxxxxx]On Behalf Of
Bob Dixon
Sent: Tuesday, June 05, 2001 5:16 AM
To: John Brooks
Cc: ccielab@xxxxxxxxxxxxxx
Subject: Re: upgrading IOS

I am concerned about my being able to get an image back on the flash as
well, but someone had to get the original one on the flash somehow. This
an older 2500. I didn't know if maybe the bootrom needs to be (or can
upgraded easily. Also didn't know if the type of flash in this guy is
fully supported by Cisco. Maybe I need to crack this router open and
the copy process with a different flash module installed?

Earlier, I forgot to include what I get when I try to erase flash. Here

Router(boot)#sh flash
8192K bytes of Flash address space sized on CPU board.
Flash: invalid chip id 0x9105
       unable to configure flash for erase or write.
Flash chips recognized by system :
   Code   Chip-Sz     Cmd-grp   Chip-name
   89B4   0x20000        1      INTEL 28F010
   89BD   0x40000        1      INTEL 28F020
   01A7   0x20000        1      AMD   28F010
   012A   0x40000        1      AMD   28F020
   012A   0x40000        1      AMD   28F020
   1CD0   0x40000        1      M5M   28F101P
   89A2   0x100000       2      INTEL 28F008SA
Memory type is Flash.
File  name/status
 0  c2500-ds-l.113-11a.bin

Router(boot)#erase flash
Translating "ERASE"...domain server (
% Unknown command or computer name, or unable to find computer address

clear           Reinitialization functions, type "clear ?" for list
configure       Configure from terminal or over network
connect <host>  Connect to host - same as typing just a host name
copy            copy flash tftp or tftp flash
debug           Enable debugging functions, type "debug ?" for list
disable         Turn off privileged commands
disconnect <cn> Break the connection specified by name or number
enable          Turn on privileged commands
exit, quit, logout      Exit from the EXEC
name-connection Give a connection a logical name
ping            Send echo messages
reload          Halt and reload system
resume          Make the named connection be current
setup           Initialize system configuration
show <cmd>      Information commands, type "show ?" for list
systat          Show terminal lines and users
telnet <host>   Connect to host using telnet protocol
terminal        Change terminal's parameters, type "terminal ?"
test            Run hardware tests, type "test ?"
trace <address> Trace route to <address>
undebug         Disable debugging functions, type "undebug ?" for list
where           Show open connections
which-route     Display CLNS route table lookup
write           Write configuration memory, type "write ?" for list
<cr>            To resume connection


----- Original Message -----
From: John Brooks <John.Brooks@xxxxxxxxxxxxx>
To: 'Jason1' <jason1@xxxxxxxxxx>; Bob Dixon <bobdixon@xxxxxxxxxxxx>;
Sent: Tuesday, June 05, 2001 4:31 AM
Subject: RE: upgrading IOS

> Jason,
> Bob is already in router(boot)# indicating 2101 is already set.  I'd
> to erase flash...however I'm worried that we will not get an image
back on
> if the chips are not identifiable???
> John
> -----Original Message-----
> From: Jason1 [mailto:jason1@xxxxxxxxxx]
> Sent: Tuesday, June 05, 2001 9:27 AM
> To: Bob Dixon; ccielab@xxxxxxxxxxxxxx
> Subject: Re: upgrading IOS
> This horse has been beaten to death already on groupstudy already...
> you need to do is to change the config to 0x2101 ,reboot,  assign a IP
> to the Ethernet Interface and then do the copy.. remember to change
> config registry back to 0x2102 after that.
> ----- Original Message -----
> From: "Bob Dixon" <bobdixon@xxxxxxxxxxxx>
> To: <ccielab@xxxxxxxxxxxxxx>
> Sent: Tuesday, June 05, 2001 12:49 PM
> Subject: upgrading IOS
> > All,
> >
> > Based on recent suggestions for a baseline IOS image to run in a
> study
> > lab, I am in the process of upgrading mine to 12.0.14. However, on a
> I
> > am getting the following:
> >
> > Router(boot)#copy tftp flash
> > Flash address space cannot be written to.
> > Memory type is Flash. Chips are not identifiable.
> >
> > The router runs fine on its current image. See below:
> >
> > Router(boot)#sh flash
> > 8192K bytes of Flash address space sized on CPU board.
> > Memory type is Flash.
> > File  name/status
> >  0  c2500-ds-l.113-11a.bin
> >
> > What am I missing here?
> >
> > Thanks,
> > Bob
> >
> > PS Here is the sh ver as well.
> >
> > Router(boot)#sh ver
> > 3000 Software (IGS-RXBOOT Bootstrap), Version 9.14(6)[fc2], RELEASE
> > Patchlevel = 9.1(10)
> > Copyright (c) 1986-1994 by cisco Systems, Inc.
> > Compiled Thu 07-Apr-94 13:58 by chansen
> >
> > System Bootstrap, Version 4.14(6)[fc3], SOFTWARE
> >
> > Router uptime is 15 minutes
> > System restarted by reload
> > Running default software
> >
> >
> > cisco 2500 (68030) processor (revision B) with 16384K/2048K bytes of
> memory.
> > Processor board serial number 01197477
> > DDN X.25 software, Version 2.0, NET2 and BFE compliant.
> > Desktop software set supported.  (0x1)
> > 1 Token Ring/IEEE 802.5 interface.
> > 2 Serial network interfaces.
> > 32K bytes of non-volatile configuration memory.
> > 8192K bytes of Flash address space sized on CPU board.
> > Configuration register is 0x2101
> > **Please read:
> **Please read:
> **Please read:
**Please read:
**Please read:
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