Determining the Current Flash and Boot Image Versions

To determine the current boot and flash image versions installed on a device, enter the show version command at any level of the CLI.

ICX7550-48P Router# show flash 
Stack unit 1:
  Compressed Pri Code size = 65736224, Version:09.0.10dT243 (GZR09010d_b12.bin)
  Compressed Sec Code size = 72551212, Version:10.0.00T243 (GZR10000_b389.bin)
  Compressed Pri Boot Code size = 1081856, Version:10.1.25T245 (gzu10125)
  Compressed Sec Boot Code size = 1081856, Version:10.2.01T245 (gzu1021b63)
  Code Flash Free Space = 2137440256
Stack unit 2: 
  Compressed Pri Code size = 65736224, Version:09.0.10dT243 (GZR09010d_b12.bin)
  Compressed Sec Code size = 72551212, Version:10.0.00T243 (GZR10000_b389.bin)
  Compressed Pri Boot Code size = 1081856, Version:10.1.25T245 (gzu10125)
  Compressed Sec Boot Code size = 1081856, Version:10.2.01T245 (gzu1021b63)
  Code Flash Free Space = 2176720896
Stack unit 3: 
  Compressed Pri Code size = 65736224, Version:09.0.10dT243 (GZR09010d_b12.bin)
  Compressed Sec Code size = 72551212, Version:10.0.00T243 (GZR10000_b389.bin)
  Compressed Pri Boot Code size = 1081856, Version:10.1.25T245 (gzu10125)
  Compressed Sec Boot Code size = 1081856, Version:10.2.01T245 (gzu1021b63)
  Code Flash Free Space = 2064109568
ICX7550-48P Router#