I’ve got a Cisco SG200-26 switch, and it has a Firmware Version (Active Image): 18.104.22.168 and Boot Version: 22.214.171.124
I tried to update the (latest) firmware sx200_fw-14088.ros via http, and …
it failed, stating there was an ‘error “illegal software format”’ – WTF ?
I’ve tried http/https, and TFTP same result. A google search later gave an answer.
I have to upgrade to intermediate firmware(S) before being able to install the latest firmware release.
Almost Like a Microsoft update style here.
The 1st intermediate release seems to be the 126.96.36.199 which include both a .ros firmware file and a .rfb boot file.
But to be able to install it we need to install 188.8.131.52 first.
This time file upload completes fine via http. A reboot later and new firmware 184.108.40.206 has been applied.
Note : I had to save the configuration.
Now let’s try to upload the 220.127.116.11 files (boot and firmware) via tftp.
My tftp is enabled by default on my OsX Server as I have deploy Studio.
if you need to enable it on a Os X Client :
go download tftpserver here and search for the Lion Version or the latest for OsX below 10.6.x
I then copied 18.104.22.168 files to /private/tftpboot
Note : You have to put the file at the root of the tftp server.
sudo cp sx200* /private/tftpboot/
Then on the cisco, go back to :
File Management -> Upgrade/Backup Firmware/Language
Choose TFTP enter your computer IP: 192.168.xxx.yyy
then the filename: sx200_fw_22.214.171.124.ros
– The file upgrade will take effect only after the switch has been rebooted. –
as before once done, reboot.
This time no need to save the config after reboot.
Note : router seems to be loading faster.
Update the boot file.
Here NO choice, TFTP is the only way to go. – that’s why I tried previously tftp for the firmware update
Again reboot to apply. It took a long time to reboot. be patient (I was a bit stress I admit)
Note : boot file sx200_boot-13506.rfb has the same label for the 126.96.36.199 and the 188.8.131.52 firmware.
Next, do the same to upload and update the 184.108.40.206 firmware. reboot.
Switch is now upgraded with the latest firmware (to date)
Note : interface has slightly changed in the VLAN tab (and maybe elsewhere)
url that helped:
I did update firmware as I had trouble creating VLANs between RV220W and SG200-26 CISCO devices.
But this had nothing to do I was just not getting it right.