Manula IOS upgrade of Cisco switch stacks (CBS3130)

Question: I have a stack of 4 C3130 switches want to upgrade the IOS, when I put the new image in flash and reload the switch I see that only the master switch comes up but the other 3 not. How can I upgrade the IOS manually for these 4 switches?

Answer: To manually upgrade your stack with a new IOS image you have to follow these steps:

1- Copy the image to the flash of all stack members ( and also the master):
copy tftp: flash1:
( flash2: and so on...)

2- Make sure that the new image file exists in all flashes
dir flash1:
( flash2: and so on...)

3- Use the boot system command to tell all stack members to boot from your new image file. This is the tricky part cuz you normally do not use this way in a single stand-alone switch:
boot system switch all flash:imagename