09-14-2012 02:24 PM - edited 03-07-2019 08:53 AM
I was directed to this forum to see if somebody could assist in getting my 3560 back online.
Original thread: https://learningnetwork.cisco.com/message/243366#243366
When I try and boot the new image, or even the older image I get a 'magic number mismatch: bad mzip file. I've tried 3 different IOS images.
I don't have a TAC account for this switch, as I use it in the lab for my studies. I would hate to waste this switch.
Cheers,
Solved! Go to Solution.
09-20-2012 11:51 AM
Evan,
I am afraid that the attempt to upgrade your IOS resulted in uncovering some dormant FLASH memory error. If that happened then sadly, there is no workaround.
Before giving up all hope, have you tried formatting and fsck-ing the FLASH from the switch: bootloader prompt? Also, have you tried various software terminals to upload the IOS image via XMODEM to the switch? It is possible that the particular software you are using somehow corrupts the XMODEM during the upload. By the way, you have quoted the following output:
switch: dir flash:
Directory of flash:/
2 -rwx 12753152
However, according to the Cisco download site, the size of this particular IOS image should be different:
Description: | IP SERVICES |
Release: | 12.2.55-SE6 |
Release Date: | 01/Aug/2012 |
File Name: | c3560-ipservicesk9-mz.122-55.SE6.bin |
Min Memory: | DRAM 128 MB Flash 16 MB |
Size: | 12.16 MB (12752912 bytes) |
MD5 Checksum: | 51b1e567f8e0bfe8c0892d321ba8e8df |
It indeed appears that the image in your FLASH is not genuine. Make sure that your COM port uses 8 data bits, 1 stop bit, no parity, and - important! - no flow control, i.e. no software (XON/XOFF), no hardware.
I suggest using TeraTerm to download the IOS to the FLASH via XMODEM. So far, it has worked nicely for me.
Best regards,
Peter
09-15-2012 06:20 AM
Hi,
Did you try deleting the old image first before loading a new one?
What model 3560 do you have?
what IOS are you trying yo load?
Can you post the output of "dir" or "dir flash:"?
HTH
09-16-2012 01:29 AM
Heya RezaSharifi,
I did indeed delete the image before loading the new one. I have the WS-C3560-24PS-S model.
I tried loading the following images:
c3560-ipservicesk9-mz.122-25.SEE.bin
c3560-ipservicesk9-mz.122-55.SE6.bin
c3560-ipservices-mz.122-25.SEC2.bin
switch: dir
List of filesystems currently registered:
flash[0]: (read-write)
xmodem[1]: (read-only)
null[2]: (read-write)
bs[3]: (read-only)
switch: dir flash:
Directory of flash:/
2 -rwx 12753152
3244544 bytes available (12754432 bytes used)
09-16-2012 01:38 AM
Also, I wanted to add that I tried booting the image off flash and I got the following error which I found odd.
switch: boot
Loading "c3560-ipservicesk9-mz.122-55.SE6.bin"...c3560-ipservicesk9-mz.122-55.SE6.bin: no such device
Error loading "c3560-ipservicesk9-mz.122-55.SE6.bin"
Interrupt within 5 seconds to abort boot process.
Boot process failed...
09-16-2012 11:52 AM
Can you try loading the IOS using Xmodem?
see link below:
http://www.cisco.com/en/US/products/hw/switches/ps628/products_tech_note09186a0080169696.shtml
HTH
09-16-2012 07:56 PM
That's what I've been using, is Xmodem. I think that's really the only way for me to load the IOS at this point.
09-18-2012 02:17 PM
Any thoughts gents? I really can't believe this switch is truly bricked from simply trying to upgrade the IOS.
09-20-2012 10:28 AM
Looks like I'm dead in the water.
09-20-2012 11:51 AM
Evan,
I am afraid that the attempt to upgrade your IOS resulted in uncovering some dormant FLASH memory error. If that happened then sadly, there is no workaround.
Before giving up all hope, have you tried formatting and fsck-ing the FLASH from the switch: bootloader prompt? Also, have you tried various software terminals to upload the IOS image via XMODEM to the switch? It is possible that the particular software you are using somehow corrupts the XMODEM during the upload. By the way, you have quoted the following output:
switch: dir flash:
Directory of flash:/
2 -rwx 12753152
However, according to the Cisco download site, the size of this particular IOS image should be different:
Description: | IP SERVICES |
Release: | 12.2.55-SE6 |
Release Date: | 01/Aug/2012 |
File Name: | c3560-ipservicesk9-mz.122-55.SE6.bin |
Min Memory: | DRAM 128 MB Flash 16 MB |
Size: | 12.16 MB (12752912 bytes) |
MD5 Checksum: | 51b1e567f8e0bfe8c0892d321ba8e8df |
It indeed appears that the image in your FLASH is not genuine. Make sure that your COM port uses 8 data bits, 1 stop bit, no parity, and - important! - no flow control, i.e. no software (XON/XOFF), no hardware.
I suggest using TeraTerm to download the IOS to the FLASH via XMODEM. So far, it has worked nicely for me.
Best regards,
Peter
09-28-2012 10:46 PM
That worked Peter!!! TeraTerm to the rescue!! I was able to restore the switch, the IOS loaded up successfully.
Thanks for the direction and help Peter, very much appreciated!!!!
Cheers mate,
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