Digital BW, The Print

I just made a copy of SP7900 raw curve for starting a new linearization process but the install command is not able to activate it. It gives a following message in terminal: Couldn't open /Library/Printers/QTR/quadtone/Quad7900/UCpk-ProPearl205.quad for writing: Permission denied

I use iMAC27 OS 10.8.5

I already tried to disable firewall and checked if install7900.command permission is Read&Write.

Thanks