IOS upgrade failed

[samuel0901]

hi,

I upgrade IOS for 2503 to 12.1. I had testing the connect between tftp server and router, it's ok (running-config copy to tftp server successful). but when copy tftp flash, the connection is down. what's happen?

thanks!

Samuel

=============================

R4#copy tftp flash

**** NOTICE ****

Flash load helper v1.0

This process will accept the copy options and then terminate

the current system image to use the ROM based image for the copy.

Routing functionality will not be available during that time.

If you are logged in via telnet, this connection will terminate.

Users with console access can see the results of the copy operation.

---- ******** ----

Proceed? [confirm]

Address or name of remote host []? 149.1.1.2

Source filename []? c2500-i-l.121-27b.bin

Destination filename [c2500-i-l.121-27b.bin]?

Accessing tftp://149.1.1.2/c2500-i-l.121-27b.bin...

Erase flash: before copying? [confirm]

%SYS-4-CONFIG_NEWER: Configurations from version 12.0 may not be correctly understoo

d.

%FR-5-DLCICHANGE: Interface Serial0 - DLCI 401 state changed to ACTIVE

%FR-5-DLCICHANGE: Interface Serial0 - DLCI 405 state changed to ACTIVE

%FLH: c2500-i-l.121-27b.bin from 149.1.1.2 to flash ...

System flash directory:

File Length Name/status

1 5606780 c2500-i-l.120-3

[5606844 bytes used, 2781764 available, 8388608 total]

Accessing file 'c2500-i-l.121-27b.bin' on 149.1.1.2...

Loading c2500-i-l.121-27b.bin ... [timed out]

[failed]

%FLH: retry #1

%FLH: c2500-i-l.121-27b.bin from 149.1.1.2 to flash ... (retry)

System flash directory:

File Length Name/status

1 5606780 c2500-i-l.120-3

[5606844 bytes used, 2781764 available, 8388608 total]

Accessing file 'c2500-i-l.121-27b.bin' on 149.1.1.2...

Loading c2500-i-l.121-27b.bin ... [timed out]

[failed]

==================================

[glen.grant]

Looks like you didn't have a good path to the server or you didn't unlock the file ont he server .

[samuel0901]

using the same method, it's successful for others router. the path is correct. what's your mean unlock.

i ping the router when copy tftp flash, the connection then down. what's cause it's down?

thanks!

Samuel

[bella]

**** NOTICE ****

Flash load helper v1.0

This process will accept the copy options and then terminate

the current system image to use the ROM based image for the copy.

!!!!!! Routing functionality will not be available during that time.!!!!!!!

If you are logged in via telnet, this connection will terminate.

Users with console access can see the results of the copy operation.

[Richard Burts]

Andriy makes a very good point here. On the 2500 routers flash is normally read-only as the architecture of the 2500 is that it is a run from flash machine. To upgrade IOS the 2500 needs to run the mini IOS that is ROM based so that flash will be read-write. Flash Load Helper (FLH) was implemented to do this so that you do not need to manually boot to ROM etc.

In the ROM based IOS the router is acting as an IP host and does not run any routing protocols. If the TFTP server is not locally connected it becomes necessary to configure the default-gateway command to enable the 2500 to reach remote destinations.

Try configuring the 2500 with default-gateway pointing at the next hop toward the TFTP server and let us know if it works then.

HTH

Rick

[samuel0901]

Hi Rick,

it should be FLH problem.

I go to mini IOS (0x2101) first, then upgrade the IOS, it's successful.

thanks!

Samuel