> Trying to upgrade to IOS 11, need to run CPA25 upgrade. Having problems
> completing this, wont take, have errors, see below. Tried to erase the
> flash and this is what we get, also get the checksum error when we
> attempt the upgrade.
>
> System flash directory:
> File Length Name/status
> 1 3774192 cpa25-y-l.111-5 [invalid checksum]
> [3774256 bytes used, 420048 available, 4194304 total]
>
> Erase flash device? [confirm]
> Are you sure? [yes/no]: y
> %dev_open: System flash not writable
> ttc-glc-corp-gw#show flash
>
> System flash directory:
> File Length Name/status
> 1 3774192 cpa25-y-l.111-5 [invalid checksum]
> [3774256 bytes used, 420048 available, 4194304 total]
> 4096K bytes of processor board System flash (Read ONLY)
>
>
> Thanks,
> Mark
>
conf t
config-register 0x1
exit
reload
It will reload into Bootrom mode. The flash is now writable. The 2500 series
runs from flash so the flash memory is read-only during normal operation.
Also, shutdown all interfaces except for the one with access to the TFTP
server before doing the reload.
David C Prall, CCDP CCNP MCSE MCNE
[EMAIL PROTECTED]
http://dcp.dcptech.com
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