…Details…

fw01-> save software from tftp 10.255.4.210 ns50ns25.5.4.0r21.0 to flash
Load software from TFTP 10.255.4.210 (file: ns50ns25.5.4.0r21.0).
!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
tftp received octets = 5994268
tftp success!

TFTP Succeeded
Save to flash. It may take a few minutes ...platform = 14, cpu = 10, version = 18
update new flash image (01e97ddc,5994268)
platform = 14, cpu = 10, version = 18
offset = 20, address = 3060000, size = 5994189
date = 4062f3e0, sw_version = 4062f3e4, cksum = f7522c46
Program flash (5994268 bytes) ...
sec_size :131072 align_support 1 , mode 96028
++++++++++++++++++++++++++++++++++++++++++++++done
Done
fw01-> reset
System reset, are you sure? y/[n] y
In reset ...

Comandi base per aggionare un Catalyst 29xx partendo da un’immagine IOS compresssa in tar, ovviamente e’ indispensabile avere a disposizione un server TFTP con gia’ caricata nella root l’immagine.

Fase 1 – Eliminare l’immagine e eventuali web-interface con questi due comandi:

Switch#delete flash:c0000-versioneios.bin
Switch#delete flash:html/*

Fase 2 – Copiare scompattare e caricare l’immagine dall’TFTP

Switch#archive tar /xtract tftp://10.10.10.1/c0000-versioneios.bin flash:

Fase 3 – Verificare l’immagine

Switch#verify flash:c0000-versioneios.bin

Memo:

Le immagini con questa notazione “i6k2l2q4″ hanno le seguenti feature:
EI AND SI IOS CRYPTO

Le immagini con questa notazione “i6q4l2″ hanno le seguenti feature:
EI AND SI IOS