i got a link from some member (i think you can get too) and i can asure, that EOS64-4.28.10.1M.swi installs and works on DCS-7050SX-64 (similiar to yours but with 48xSFP+ ports).Hey guys! Just got some switches from Ebay and I'm wanting to flash the default via USB, and of course found it's nearly impossible to find the EOS.swi file. I have the DCS-7050TX-64, anybody have a useable EOS file for that? You would be a lifesaver.
a7050sx-1#show version
Arista DCS-7050SX-64-R
Hardware version: 12.23
Serial number: *
Hardware MAC address: *
System MAC address: *
Software image version: 4.28.10.1M
Architecture: x86_64
Internal build version: 4.28.10.1M-35010112.428101M
Internal build ID: af99aa8b-f6f0-4d36-a45e-6111cdc5d266
Image format version: 3.0
Image optimization: Strata-4GB
Uptime: 15 minutes
Total memory: 8098992 kB
Free memory: 5790324 kB