Re: Problems with IOS upgrade 3750

ramesys12 · ‎08-28-2006

Scenario: Te customer has two 3750 switches and for further redundancy + speed they decided to use the stackwise tech.

I was asked to install the stack wise cables so waht I did was

port 1 on Switch1 > port 2 on Swtich2

port 2 on Switch1 > port 1 on Switch2

restarted both switches to configure them from scratch i.e. cluster + ip and etc switch 2 was in a hung state so decided to upgrade the IOS on switch 2 as it did not match switch 1.

I got my hands on a tar file for this switch and like a idiot "copy tftp flash" the tar to the flash instead of following the follwoing command :

http://www.cisco.com/en/US/products/hw/switches/ps5023/products_configuration_example09186a00804799d7.shtml

***************************************

archive download-sw /leave-old-sw tftp://11.11.11.11/c3750-i5-tar.122-20.SE.tar

***************************************

The old IOS was erased by me and here I am stcuk with the 3750 on the promt where it sasy

switch:

I can barely run any commands on this mode.

What I need to do is install/ extract the tar file as it comes up with a message saying no boot file system found etc...

Can anyone pelase advise.

Now I will need to two things from any expert

1) How to fix this IOS issue I caused which is embarassing

2) Did I patch the stackwise cables correctly ?

please respond any help will be greatly aprpeciated.

cheers

AJ

Edison Ortiz · ‎08-28-2006

Responding your first question:

You can transfer a new IOS to this switch by using XMODEM or TFTPdnld

Please check these links for either method.

http://www.cisco.com/en/US/products/hw/routers/ps221/products_configuration_guide_chapter09186a008007cd0e.html

http://www.cisco.com/warp/public/130/xmodem_generic.html

Your second question:

The cables are connected correctly.

Please rate helpful posts.

Thanks

ramesys12 · ‎08-28-2006

EdisonOrtiz,

Thnak you for responding it is indeed kind of you.

Let me elaborate a little more on this.

The problem is I dont even get into the rommon mode to use the links above..

All I get with a prompt which the rotuer is switched on is

---------------

switch:

----------------

I surely tried the xmodem command in that mode and it seems to not work.

So is there a way I can change the "configure register" from the prompt I am in currently I dont even know what that prompt is called to be honest??

Am I being blind or am I looking for spoon feeding which is neither the case trust me...

I think I am under a lot of pressure to get that switch working as all the servers redundant cables were plugged into that switch.

Any help will be greatly apprecaited.

cheers

AJ

Edison Ortiz · ‎08-28-2006

If you type

?

What commands are available to you ?

ramesys12 · ‎08-28-2006

If memory serves me right

" ? "

does not work in that mode

neither does help

all I get is

switch:

ramesys12 · ‎08-28-2006

let me add further to this

I think I did run the command

dir flash:

and it list the .tar file only in the flash whcih is clear the result of my wrong doing.

The switch is not with me as it is onsite but I wsih I could have connected to it right now and given you the output whcih I can do tommorow if it helps.

cheers

AJ

Edison Ortiz · ‎08-28-2006

You need the .bin file as well. That's your IOS image.

EDIT: I see you went with the archive approach, nothing wrong with that but I usually download the BIN and go with the copy tftp flash :)

ramesys12 · ‎08-28-2006

I completely agree should have done that but the customer was a novice to cisco switches and required a funky web int so I decided to go down that route and in haste messed the whole thing up :(

I agree the commanf you have suggested but I think you will need that output when the switch starts which will enable any of the experts to help me..

So I will get back to you tommorow once I have access to the switch once again.

cheers

AJ

ramesys12 · ‎08-29-2006

As promised.

switch:

Base ethernet MAC Address: 00:18:19:60:81:00

Xmodem file system is available.

The password-recovery mechanism is enabled.

Initializing Flash..

*** some text missing *****

flashfs[0]: 0 orphaned files, 0 orphaned directories

flashfs[0]: Total bytes: 15998976

flashfs[0]: Bytes used: 7837184

flashfs[0]: Bytes available: 8161792

flashfs[0]: flashfs fsck took 9 seconds.

...done Initializing Flash.

Boot Sector Filesystem (bs) installed, fsid: 3

done.

Loading "flash:c3750-ipbase-mz.122-25.SEB4/c3750-ipbase-mz.122-25.SEB4.bin"...fl

ash:c3750-ipbase-mz.122-25.SEB4/c3750-ipbase-mz.122-25.SEB4.bin: no such file or

directory

Error loading "flash:c3750-ipbase-mz.122-25.SEB4/c3750-ipbase-mz.122-25.SEB4.bin

"

Interrupt within 5 seconds to abort boot process.

Boot process failed...

The system is unable to boot automatically. The BOOT

environment variable needs to be set to a bootable

image.

switch:

switch: dir flah:

unable to stat flah:/: no such device

switch: dir flash:

Directory of flash:/

2 -rwx 7834112 c3750-ipbasek9-tar.122-25.SEB.tar

3 -rwx 1493 config.text

4 -rwx 5 private-config.text

8161792 bytes available (7837184 bytes used)

switch: ?

? -- Present list of available commands

boot -- Load and boot an executable image

cat -- Concatenate (type) file(s)

copy -- Copy a file

delete -- Delete file(s)

dir -- List files in directories

flash_init -- Initialize flash filesystem(s)

format -- Format a filesystem

fsck -- Check filesystem consistency

help -- Present list of available commands

load_helper -- Load and initialize a helper image

memory -- Present memory heap utilization information

mkdir -- Create dir(s)

more -- Concatenate (display) file(s)

rename -- Rename a file

reset -- Reset the system

rmdir -- Delete empty dir(s)

set -- Set or display environment variables

set_bs -- Set attributes on a boot sector filesystem

set_param -- Set system parameters in flash

sleep -- Pause (sleep) for a specified number of seconds

trap -- Cause a software breakpoint to occur

type -- Concatenate (type) file(s)

unset -- Unset one or more environment variables

version -- Display boot loader version

ramesys12 · ‎08-29-2006

As mentioned earlier I dont even see the XMODEM command listed under the help.

can I not extract that tar file which is already in the flash?

or simply erase it and than reboot the switch?

than I might get a different prompt?

Please advise.

cheers

AJ

Edison Ortiz · ‎08-29-2006

AJ,

Reboot the device and perform the CRTL+BREAK sequence to get into ROM Mode and then follow the steps from this URL (XModem or TFTPDLND).

http://www.cisco.com/en/US/products/hw/routers/ps221/products_configuration_guide_chapter09186a008007cd0e.html

Make sure to download a .bin file instead of a .tar and also delete the .tar in order to create more space in the flash.

Good luck.

royalblues · ‎08-29-2006

Hi graeme,

Try the following commands and check

switch: flash_init

switch: load_helper

switch: boot

HTH

Narayan

Edison Ortiz · ‎08-29-2006

Narayan,

He doesn't have a valid image to boot from ...

ramesys12 · ‎08-29-2006

Thank you both for responding to the post much appreciated.

I have tried the break sequence .i.e ctrl < break >

it refuses to work

all I get is this

*****************************

switch: < AJ : powered off >

Base ethernet MAC Address: 00:18:19:60:81:00

Xmodem file system is available.

The password-recovery mechanism is enabled.

Initializing Flash...

flashfs[0]: 0 files, 1 directories

flashfs[0]: 0 orphaned files, 0 orphaned directories

flashfs[0]: Total bytes: 15998976

flashfs[0]: Bytes used: 1024

flashfs[0]: Bytes available: 15997952

flashfs[0]: flashfs fsck took 8 seconds.

...done Initializing Flash.

Boot Sector Filesystem (bs) installed, fsid: 3

done.

Loading "flash:c3750-ipbase-mz.122-25.SEB4/c3750-ipbase-mz.122-25.SEB4.bin"...fl

ash:c3750-ipbase-mz.122-25.SEB4/c3750-ipbase-mz.122-25.SEB4.bin: no such file or