[c-nsp] 3750G Metro - post upgrade, bug or feature?

[Afsheen Bigdeli]

Ah, think I've figured this out. This is bug CSCsc41813. Now to figure 
out how to upgrade the switch in-situ when I don't have access to flash...

--afsheenb




Afsheen Bigdeli wrote:
> > I haven't dealt with this particular model of 3750 but it does look
> > as though it's supported by the same IOS releases as the other 3750
> > and 3750G switches.
> >
>
>  Yep. This makes me think I've stumbled upon a bug.
>
> >> The other thing that stumps me is the odd failure mode. I'd
> >> expect the switch to simply not boot, as opposed to functioning
> >> perfectly except for when access to flash: is required.
> >
> > This does seem unusual - which other flash: related commands have
> > you tried? (sh flash: / copy flash: tftp:) Also what are the exact
> > errors you're receiving?
>
>  When I try to write mem initially after an upgrade:
>
>  test#wr mem Building configuration...
>
>  nv_done: unable to open "flash:/config.text.new" nv_done: unable to
>  open "flash:/private-config.text.new"[OK] NVRAM Verification Failed
>  cdg-tis-sw1#fsck flash: Fsck operation may take a while. Continue?
>  [confirm] flashfs[1]: 358 files, 5 directories flashfs[1]: 0 orphaned
>  files, 0 orphaned directories flashfs[1]: Total bytes: 23224320
>  flashfs[1]: Bytes used: 15832576 flashfs[1]: Bytes available: 7391744
>  flashfs[1]: flashfs fsck took 13 seconds. Fsck of flash:: complete
>
>  Hmm. Odd. Let's fsck flash and then try it...
>
>  test#wr mem Building configuration...
>
>  i28f128j3_16x_write_bytes: command sequence error flashfs[1]: writing
>  to flash handle 0x261CD80, device 0, offset 0xD40000, length 0x208:
>  Operation Failed flashfs[1]: sector ptr: {0x6A, 0xFB} nv_done: unable
>  to open "flash:/config.text.new" i28f128j3_16x_write_bytes: command
>  sequence error flashfs[1]: writing to flash handle 0x261CD80, device
>  0, offset 0x5C0000, length 0x208: Operation Failed flashfs[1]: sector
>  ptr: {0x2E, 0xC6} nv_done: unable to open
>  "flash:/private-config.text.new" i28f128j3_16x_write_bytes: command
>  sequence error flashfs[1]: writing to flash handle 0x261CD80, device
>  0, offset 0x5C0000, length 0x208: Operation Failed flashfs[1]: sector
>  ptr: {0x2E, 0xC4} flashfs[1]: filesystem marked down.  Use "fsck" to
>  recover.[OK] NVRAM Verification Failed
>
>  And that's what I see no matter what I try to do from thatpoint on.
>
>
> > It's probably worth trying an upgrade to a different release and if
> > the problem remains, refer it to the TAC - unless someone else here
> >  has any useful input.
>
>  Agreed. Last try: anyone seen this behavior before or have anything
>  to contribute?
>
>  Thanks, --afsheenb
>
>
>
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