Following the process documented in the SG300 manual - When I select the firmware source file - Select File sx300_fw-14088.ros (I just downloaded from the Cisco website) - I receive the following error - Copy: Illegal software format. What is the file extension of the firmware upgrade file? What am I doing wrong?
Hello Cisco Support Community,
Wanted to add to this thread. I recently obtained a SG 300-10 in which I had to upgrade its firmware before I could proceed with my configurations. Thanks to your comments and tips I was able to upgrade our SG 300-10 from firmware v18.104.22.168 to 1.4. 5.02. Here is what I did...
Step 1: upgrade "boot code" first to "sx300_boot-13506.rfb"
Step 2: upgrade firmware to "sx300_fw_22.214.171.124.ros"
Step 3: "Reboot"
Step 4: upgrade to firmware "sx300_fw-1413.ros"
Step 5: "Reboot"
Step 6: Upgrade to firmware "sx300_fw-14502.ros"
Step 7: "Reboot"
The reason why I updated from 126.96.36.199 to 188.8.131.52 is because of my experience with jumping through major versions. I did not find any information regarding a specific firmware level stop point to update from 184.108.40.206 to 1.4.5.02, but you can sure try to update all the way to 1.4.5.02. Please document here your experience by jumping straight to the latest version.
My 7 steps did the job for our SG 300-10.
I wasn't able to update the boot code.(rfb), i keep having the "Illegal Software format" error. Although I was able to update the system to the 220.127.116.11 version, but i could not get any further, because after reboot, the firmware version wasn't active, later after that, if i tried with a higher firmware version, i got: "oversized file" and the upload of the firmware was cancelled at 96%.