Switch image upgrade boot preference.

[ADIT]

I am planning to upgrade the switch ICX7150 firmware to 8095m. I have a query for boot preference.

1) The current boot preference shows secondary, and the image is SPR. So, if I upgrade the image, should I choose a secondary flash? After the upload and restart, will it come to secondary with the upgraded version and the same configuration? 

2) If I choose the primary flash for uploading images, what will happen?

Can you please review and provide me with the steps for the error-free upgrade?

Please review the current configuration details.

SSH@RSH-STH-SW-05#show flash
Stack unit 1:
NAND Type: Micron NAND 2GiB (x 1)
Compressed Pri Code size = 28660224, Version:08.0.90dT211 (SPS08090d.bin)
Compressed Sec Code size = 32539748, Version:08.0.90dT213 (SPR08090d.bin)
Compressed Pri Boot Code size = 786944, Version:10.1.15T225 (mnz10115)
Compressed Sec Boot Code size = 786944, Version:10.1.15T225 (mnz10115)
Code Flash Free Space = 1131020288

SSH@RSH-STH-SW-05#show boot-preference
Boot system preference(Configured):
Boot system flash secondary

Boot system preference(Default):
Boot system flash primary
Boot system flash secondary

[ADIT]

I am using this "SPR8095mufi" image for upgrading ruckus switch, so my doubt is this required upgrading the boot file?

or this contain all the files required to perform the upgrade. 

[BenBeck]

UFI images contain everything in one file. The boot code is in there; you just don't see it. Things are much simpler with UFI!