I have a VS-S720-10G supervisor with version 12.2(33)SXH IOS. The BOOT variable looks like this:
BOOT variable = flash:s72033-ipservices_wan-mz.122-33.SXH.bin;-mz.122-33.SXI.bin,12;flash:s72033-advipservicesk9_wan-mz.122-33.SXI.bin;s72033-ipservices_wan-mz.
It's obviously messed up, so I want to remove all the variables and start fresh. I want the boot variable to read "BOOT variable = sup-bootdisk:s72033-ipservices_wan-mz.122-33.SXH.bin"
The problem is, I can't remove the variables. I try a "no boot system flash xxxxxx" (substituting a variable string for the x's), then do a write, but "show boot" shows no change. I've even tried "no boot system flash <everything after the equal sign>", to no effect.
What am I doing wrong?