03-23-2009 11:39 AM - edited 03-06-2019 04:45 AM
Just got 2 x 3750 and I tried to stack them, that didn't work because of an IOS mismatch. I upgraded the IOS to c3750e-universalk9-mz.122-40.SE and erased the old version, now the switch does not boot up normally. I get an unusual prompt.
These are the files I have on the other 3750:
2 drwx 512 Mar 1 1993 00:10:47 +00:00 update
3 -rwx 2385 Mar 1 1993 00:44:53 +00:00 config.text
4 -rwx 24 Mar 1 1993 00:44:53 +00:00 private-config.text
5 -rwx 1048 Mar 1 1993 00:44:53 +00:00 multiple-fs
6 drwx 512 Mar 1 1993 00:06:43 +00:00 c3750e-universalk9-mz.122-
40.SE
How do I revive this 3750?
It's currently not in a regular IOS mode?
03-23-2009 12:11 PM
Hi Roni,
Let's check this link out.
http://www.cisco.com/en/US/products/hw/switches/ps628/products_tech_note09186a0080169696.shtml
Let's go to rommon mode first.
HTH,
Toshi
03-23-2009 02:36 PM
Are you sure your switches are 3750-E?
03-25-2009 07:43 AM
Yes, I am sure, I have two 3750E stacked. I just tried to reboot and I get:
sh switch
Switch/Stack Mac Address : 001d.a132.5280
H/W Current
Switch# Role Mac Address Priority Version State
----------------------------------------------------------
1 Member 0000.0000.0000 0 1 Provisioned
*2 Master 001d.a132.5280 1 1 Ready
dir
Directory of flash:/
2 drwx 512 Mar 1 1993 00:10:47 +00:00 update
3 -rwx 1048 Mar 2 1993 19:53:28 +00:00 multiple-fs
4 -rwx 4281 Mar 1 1993 00:18:25 +00:00 config.text
5 drwx 512 Mar 1 1993 00:06:43 +00:00 c3750e-universalk9-mz.122-
40.SE
510 -rwx 24 Mar 1 1993 00:18:25 +00:00 private-config.text
57409536 bytes total (31827968 bytes free)
Interestingly enough, when I do a "sh run" I see both 1/0/1-48 AND 2/0/1-48.
Why does "sh switch" show switch#1 as "provisioned"?
03-25-2009 11:12 AM
When I disconnect the stack and boot up that switch I get the following:
The system is unable to boot automatically. The BOOT
environment variable needs to be set to a bootable
image.
switch:
03-25-2009 02:26 PM
Hi Ron,
You're in ROMmon mode possibly because the switch IOS is either corrupt or missing. Do "load_helper" and followed by "flash_init".
Once you've done this, can you do "dir flash:" (please don't forget the colon at the end)?
03-25-2009 04:19 PM
Ron,
Here's the procedure to copy your IOS software via ROMmon:
Step-by-Step Recovery Procedure
03-26-2009 09:45 AM
switch: dir flash:
Directory of flash:/
2 drwx 512
5 -rwx 4281
6 -rwx 24
7 -rwx 11439675
8 drwx 512
512 -rwx 1048
27500544 bytes available (29908992 bytes used)
The other 3750 (stack) has this c3750e-universalk9-mz.122-40.SE.bin
03-26-2009 02:37 PM
From the ROMmon, do the following:
"boot flash:c3750e-universalk9-mz.122-40.SE.bin" and see what the error messages bring.
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