SRW248G4P - (!)Loader Binary checksum error - <ERR> Runtime Loading Fail - System Halt.

[jzingsheim]

We have this 48 port switch in our engineering department, and it basically stopped passing network traffic.

When connecting to the Console port and power cycling the switch, this is what I see:

Image Loader 1.0.1

Loading Diagnostic Image File : SRW224G4P_SRW248G4P_boot.bix

Diagnostic 1.0.1

User Mode

--- Performing Power-On Self Tests (POST) ---

DUMMY Test 1 ................. PASS

UART Loopback Test ........... PASS

POE UART Loopback Test ....... PASS

DRAM Test .................... PASS

Timer Test ................... PASS

Done All Pass.

------------------ DONE ---------------------

(!)Loader Binary checksum error

<ERR> Runtime Loading Fail - System Halt.

This error obviously doesn't look "normal".

When pressing CTRL-U, I get the following screen:

File Name                         S/Up Type Size       Create Time

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

$logfile_1                          0    3         64  1193046:28:15

Factory_Default_Config.cfg          0    5        354  24:01:02

SRW224G4P_SRW248G4P_boot.bix        1    1    1377600  00:01:03

certificate                         0    8      18040  24:00:56

startup-config                      1    5       5651  25:00:38

startup1.cfg                        0    5       5537  24:01:14

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

Free Space : 5636096

[X]modem Download  [D]elete File  [S]et Startup File

[Q]uit

Select>

I've tried to update the "SRW224G4P_SRW248G4P_image_v1310.bix" file using Xmodem download, but since I really wasn't sure how to use this boot loader tool, I haven't been successful at doing that, nor do I even know if that's the solution for the problem that I'm having.

Xmodem Receiving Start ::

XMODEM, Successful.

Blocks Received = 7289

Bytes Received = 394480

Errors:

        Checksum   = 0

        Complement = 0

        Duplicates = 0

Image downloaded to buffer.

        [R]untime

        [D]iagnostic

        M[u]ltipe Image

        [L]oader (Warning: Are you sure what you are doing?)

        [Q]uit

Update Image File:r

Runtime Image Filename : SRW224G4P_SRW248G4P_image_v1310.bix

Updating file system.

File system update fail.

I'm guessing that I'll need to contact Cisco tech support, although at least through their web site, they make that nearly impossible to accomplish.

Does anyone have any suggestions on what may have happened to our switch and what I should do to recover? Of course we're about to start a time-critical round of product testing, and without this switch, I'm dead in the water.  And it's not like we have a spare 48-port PoE switch lying around.

[Tom Watts]

Hi Jeff, you're on the right track I think. If you load the switch firmware through xmodem it should fix the problem providing the firmware loads correctly.

The firmware you can use depends on your boot code, here is a small table.

1.2.2a is 1.0.6 boot code.

1.2.2b is 1.0.1 boot code.

1.2.3.0 is 1.0.2 boot code

It looks like you're using 1.0.1 boot code so the 1.2.2b firmware should be for you.

-Tom
Please mark answered for helpful posts

[jzingsheim]

Tom - Thank you for your reply.  From what you're describing I may have been using the wrong firmware to try to resolve this problem.  The file that I'd downloaded from cisco.com was SRW224G4P_SRW248G4P_image_v1310.bix, which I'd guess is version 1.3.10 given your number formatting.

I ended up spending about 3 hours chatting online with a Cisco tech support person yesterday, who unfortunately never suggested anything like your recommended solution.  In the end, after asking me a series of questions, and going back and talking to others in Cisco, he recommended that we return the switch for replacement.  Since I was in a hurry to get it back up and running, I shipped it back yesterday to hopefully get a replacement shipped out today.  Therefore, I no longer have the switch in my possession to try this other solution.

As an engineer, I'd love to have tried this solution to see if it worked, although I'm also not sure of the root cause of the corruption within the switch in the first place, and how to be certain that it won't happen again.

This switch was on a wall, running happily for several years without so much as a power cycle to interrupt it's operation, so other than a potential power glitch, I can't identify what may have triggered it's failure.

[thomas.gorjup]

Hello,

I got the same issue. After downloading and uploading the firmware, I got the following result and all LED on the switch are glowing. Could you please help on this issue? Where can I find the right firmware. I also have Image loader 1.0.1.

Xmodem Receiving Start ::
XMODEM, Successful.
Blocks Received = 6b59
Bytes Received = 35ac80
Errors:
        Checksum   = 0
        Complement = 0
        Duplicates = 0
Image downloaded to buffer.


        [R]untime
        [D]iagnostic
        M[u]ltipe Image
        [L]oader (Warning: Are you sure what you are doing?)
        [Q]uit
Update Image File:r
Runtime Image Filename : SRW224G4P_SRW248G4P_image_v1020.bix
Updating file system.
File system update fail.
File Name                         S/Up Type Size       Create Time
--------------------------------- ---- ---- ---------- -----------

All I got now after restarting the switch is:

File Name                         S/Up Type Size       Create Time

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

Factory_Default_Config.cfg          1    5        354  24:01:02

certificate                         0    8      18040  24:00:56

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

Free Space : 7602176

[X]modem Download  [D]elete File  [S]et Startup File

[Q]uit

Select>

Thnx in advance.

[Mgrewal_123]

Hi Jeff,

                 Did you ever fixed this issue? (!)Loader Binary checksum error  - Runtime Loading Fail - System Halt.

I have same situation on SRW248G4P switch. What is the difference between an .IBX and .ROS files they are both listed under firmware catagory.

I am trying to XMODEM the new files but no success.

Xmodem Receiving Start ::

XMODEM, Successful.

Blocks Received = 6b59

Bytes Received = 35ac80

Errors:

        Checksum   = 0

        Complement = 0

        Duplicates = 0

Image downloaded to buffer.

        [R]untime

        [D]iagnostic

        M[u]ltipe Image

        [L]oader (Warning: Are you sure what you are doing?)

        [Q]uit

Update Image File:r

Runtime Image Filename : SRW224G4P_SRW248G4P_image_v1020.bix

Updating file system.

File system update fail.

Mandeep

[jzingsheim]

The issue is resolved, but because Cisco issued an RMA and replaced it.  I really don't have answers to any of the other questions, but I found the online chat feature with Cisco techs in India to work well.