Hello Marek,
with my last move from Windows to Linux I had the probleme that the images pathes for the devices in the Firmware Mgmt tab was wrong.
The only way to solve this. I found, was to click on the device Type. Go to the right window and delete the firmware (right click on the firmware and select delete).
May this hint helps if you have the same problem.
![248953339b97406f8b3854781982790a_RackMultipart20170427-113306-1k3ld9-FirmwareManager_inline.jpg 248953339b97406f8b3854781982790a_RackMultipart20170427-113306-1k3ld9-FirmwareManager_inline.jpg](/t5/image/serverpage/image-id/1766iE180F7A07CED09AC/image-size/large?v=v2&px=999)
Regards
Stephan