Rich,
Pre-6.42 FW will not stack with 6.61, thus can't copy the FW that way. Luckily the one with 6.61 had 6.42 as a backup firmware, booted that, stacked and upgraded the 6.03, then upgraded it again to 6.61.
Was 06.61.11.0006 the latest firmware...
+1 on Enterasys C3 firmwares. I have 2 C3 switches, one on 06.03 and the other on 06.61 and I can't stack them because of this. Would love to upgrade the older one to 06.61 but I can't extract the firmware from the newer switch. Can't open a support ...
