[c-nsp] Sup720 hanging after rommon starts loading IOS

["Rolf Hanßen"]

Hi,

now got another annoying card, this one does not boot from bootdisk:

--------------------------------------
System Bootstrap, Version 8.5(4)
Copyright (c) 1994-2009 by cisco Systems, Inc.
Cat6k-Sup720/SP processor with 1048576 Kbytes of main memory

Autoboot executing command: "boot
bootdisk:/s72033-adventerprisek9_wan-mz.122-33.SXH.bin"
Loading image, please wait ...


Initializing ATA monitor library...
monlib.open(): Open Error = -66
loadprog: error - on file open
boot: cannot load "bootdisk:/s72033-adventerprisek9_wan-mz.122-33.SXH.bin"
Exit at the end of BOOT string
rommon 1 > dev
Devices in device table:
        id  name
 bootdisk:  boot disk
    disk0:  PCMCIA Disk 0
    disk1:  PCMCIA Disk 1
    eprom:  eprom
rommon 2 > dir bootdisk:

Initializing ATA monitor library...
monlib.open(): Open Error = -66
dir: cannot open device "bootdisk:"
rommon 3 >
--------------------------------------

That is a 3bxl.
After replacing the battery I was able to flash the ROMMONs. ;)

Same adapter + same flash card boots in another Sup720 with same ROMMON
versions.
Also tried version 8.5.3 and 8.4.2.
RP has 12.2(17r)SX7 installed (I guess that does not matter anyway).
Booting from disk0: works fine, I can access sup-bootdisk: from within IOS.
I already tried to format it and copy IOS image again but that looks to me
like somthing prior to the magic number things.

Any further idea ?

kind regards
Rolf

> On 4/24/13 2:31 PM, Paul wrote:
>> For compact flash cards you need to put them in a PC, and remove the
>> partition table (or format it FAT16).
>> Once the partition table is completely removed , format it in your
>> supervisor and it will work every time.
>> The issue is that most flash cards come with the partition table already
>> created and already formatted.
>>
>
>
>
> You also can't boot from a flash disk that hasn't been
> formatted/'blessed' by the platform its been inserted into.  This
> platform limitation also applies to differences in SUPs, such as between
> SUP32, SUP720, etc.
>
> We had gotten a 720 with no flash, its internal flash had been wiped
> completely.  Tried using a flash formatted and loaded in the SUP32 we
> have - wouldn't successfully boot, then tried with a RSP16 from a 7500
> series, and still couldn't make it boot off the flash.
>
> Finally succeeded in tickling the 720 to boot off of the one made in the
> RSP16 after fooling with its ROMMON.  Apparently, the format command
> adds some hidden flags or files to the flash which when not present or
> of the wrong type, it will cause the boot loader to pretend like the
> flash is unbootable even with the right files on it.
>
> Important side note for anyone with a SUP720 - you can't load an IOS
> image over serial or TFTP with the ROMMON.  For serial, its particularly
> deceptive in that the command is there, but will fail every single time.
>
> Yay Cisco!
>
>
> --
> Brielle Bruns
> The Summit Open Source Development Group
> http://www.sosdg.org    /     http://www.ahbl.org
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