3750x 48ts IOS not booting

[louis0001]

We have a 3750x 48ts. When I tried to update the IOS with 3750e-universalk9-mz.152-4.E5.bin, it fails to boot.

If I try 3750e-universalk9-mz.152-1.E1.bin, it boots. I've downloaded the newer image a couple of times now and still the same result.... no boot.

This switch is destined for a stack with 152-4.E5.bin so I suspect adding it to a stack will result in the IOS being updated and it failing to boot again.

I know I can downgrade the stack but it's a pain.....

Any ideas why the newer image won't boot?

[ngraupe]

yes - he did

without any error-message

[Leo Laohoo]

This is odd and I'm beginning to think this is a bug.
Can you try 15.2(4)E6?

[ngraupe]

it is the same, and looks like a bug ...

@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@
File "flash:/c3750e-universalk9-mz.152-4.E6.bin" uncompressed and installed, entry point: 0x3000
executing...
Boot process failed...

The system is unable to boot automatically. The BOOT
environment variable needs to be set to a bootable
image.

switch:

[Leo Laohoo]

What is the output to the command "sh bootvar"?
How about 15.0(2)SE11?

[ngraupe]

bootvar is okay,

15.0(2)SE11 is running

It is not a simple mistake, i have long experience too

[Leo Laohoo]

---

@ngraupe wrote:

16 Gigabit Ethernet interfaces

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You don't happen to have an SM module attached, would you?

[ngraupe]

We do not use SM modules. I also have no access to one

[Leo Laohoo]

Then I'm out of answers.
I've never seen something like this before.
You might want to consider raising a TAC Case.