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?
Kindly upgrade the boot loader first before attempting the firmware. Boot loader (.rfb file)can be found on the same zip folder as the firmware.
I've sorted this... You need to carry out an interim firmware upgrade to the previous version. Then upgrade to 1.4.X.X. The switch flash file system was changed in 22.214.171.124
Hope it helps?
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 v126.96.36.199 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_188.8.131.52.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 184.108.40.206 to 220.127.116.11 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 18.104.22.168 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 was able to skip step 4 (and 5) and upgrade directly from "sx300_fw_22.214.171.124.ros" to "sx300_fw-14502.ros".
Thank you for detailing these steps.
I bought a sg-300-52p or-switch and it has a vero firmware SW version 126.96.36.199 and Boot version 188.8.131.52, I do not find a version 1.3.5, I'm a doubt, I can go straight to the version 1.4.7?
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 184.108.40.206 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%.
What is the current version of your boot code? More than likely there could be a version in between that needs to be reached prior to updating to that specific boot code.
Jesus Christ. After hours of frustration I found your post. I was about to RMA this piece of crap. Upgrading firmware should not be this frustrating in 2017.
Wow I bought the switch with old firmware (need 100mb not GB) and I've spent many hours trying to solve this upgrade problem. Never in all the switches and firewalls I have programed have I had this much trouble.CLI, TFTP, HTTP it doesn't matter except for the boot code. You must have V220.127.116.11 installed before updating to V1.4.7.06.
Once I realized that you have to expand the ' 1 ' to get to download the V1.3 FW, then things started going right.
Many thanks to support community.
Thank you. I was having the same issue and had to step upgrade several times. Another reason I prefer enterprise switches over SMB ones. Unfortunately I still have some out there.
I understand that current upgrade it is a bit complicated but it is not always going to be the same challenge. Such a caution is usually communicated in release notes.
The reason for this is to accommodate bigger firmware with more additional features :-)
Same Problem here, I have an old 1.3.x on my SG300-28.My Problem is now, that I cant find the 18.104.22.168 Firmware, it Looks like Cisco has removed it from the download.
Without the iterim release, I can't upgrade anymore...
Anyone know where I can download the 22.214.171.124 or can send it to me?
Thanks for the info above. I was able to install the V126.96.36.199 ros file via http/https but cannot upload the boot loader via that option.
Our boot version is 1.1 and want to update it to 1.3.506 before 1.4x. I tried TFTP and entered the ip of the server and file name of the rfb in UNC format. I got the message download in progress, processing data banner, but copy failed TFTP server unreachable.
What is the easiest way to get the boot loader updated? The files are on the file server or could be located anywhere that's easiest
I'd recommend you always use the CLI to TFTP.. Seems to be easier on the SMB boxes. For example if your TFTP server was 10.7.8.9..
copy tftp://10.7.8.9/my_boot.rfb boot
Make sure your TFTP Server service is running on your server too, and that you don't have any Windows firewalls blocking TFTP. Solarwinds.net do a great free TFTP server if you need one.
I am following the same steps that you have mentioned and I am able to transfer some firmware file data but after exact same amount to byte transfer it stops working and gives me illegal software format error.
Could you please help me to find out the cause of this issue?
I have run TFTP server and I was able to upload boot file. But after then when I tried to upgrade firmware file I was not able to upload whole file. Just look at the error message that I have attached to previous comment.