From: ccie2be (ccie2be@nyc.rr.com)
Date: Sat May 10 2003 - 21:10:05 GMT-3
Hey Kym,
Thank you so much. I don't understand why these register settings work, but
so far, it's seems to be working fine. Right now the router is in the
process of copying over the new ios.
I looked up the register settings in Solie's Practical Studies and he
doesn't mention anything about bit 6 or bit 1 changing the flash from read
only to read/write. Instead, he says setting bit 6 to 1 (4 decimal) causes
the rtr to ignore nvram and bit 1 means to boot to boot mode. So, if you
could explain it, I'd like to understand why this works.
But, in any case, this does work and I very much appreciate you help. Jim
----- Original Message -----
From: "kym blair" <kymblair@hotmail.com>
To: <ccie2be@nyc.rr.com>; <ccielab@groupstudy.com>
Sent: Saturday, May 10, 2003 6:50 PM
Subject: Re: IOS Upgrade problem
> Jim,
>
> Set your config register to 0x2141 and reload. After installing your new
> IOS, change the config register back to 0x2102:
>
>
>
> R1(boot)#sh version
> <snip>
> 16384K bytes of processor board System flash (Read ONLY)
> Configuration register is 0x2102
>
>
> R1#conf t
> R1(config)#config-reg 0x2141
> R1(config)#end
> R1#reload
>
> System configuration has been modified. Save? [yes/no]: no
> Proceed with reload? [confirm]
>
>
> Router(boot)#sh version
> <snip>
> 16384K bytes of processor board System flash (Read/Write)
> Configuration register is 0x2141
>
>
>
> HTH, Kym
>
>
>
> >From: "ccie2be" <ccie2be@nyc.rr.com>
> >Reply-To: "ccie2be" <ccie2be@nyc.rr.com>
> >To: "Group Study" <ccielab@groupstudy.com>
> >Subject: IOS Upgrade problem
> >Date: Sat, 10 May 2003 16:01:11 -0400
> >
> >Hi group,
> >
> >I'm trying to upgrade from ios 12.0 to 12.1 on a 2501 with 16 mb flash.
> >The
> >router to be upgraded also has version 11.0 bootstrap. The flash isn't
> >partitioned and the version of ios I'm trying to copy is running fine on
> >another 2501. I've tried copying the ios from both a PC running Cisco's
> >TFTP
> >server s/w as well as another 2501 configured as a TFTP server. It
doesn't
> >work in either case.
> >
> >I go through the tftp process but shortly after it starts, it fails. ( I
> >can
> >ping the tftp server just fine.)
> >
> >I also noticed that with sho version, it says, 16384k bytes of processor
> >board
> >system flash (read only)
> >
> >
> >On some of my other 2501's, it says, (read/write) instead of (read only).
> >Could this be the problem? And, how do I change the flash from (read
only)
> >to
> >(read/write)?
> >
> >Thanks in advance, Jim
>
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