Hi my friend
how cam i install linux on mikrotik?
help me pls
MikroTik is a company
RouterOS is an operating system
Where do you want to install this linux?
maybe run http server，mysql server 
Look there..it could help: http://lmgtfy.com/?q=mikrotik+openwrt
Hi my friends
I want to install linux (ubuntu) on mikrotik’s os, because i want install wampserver on it’s linux.
Can i install linux on a sd card or flash memory and connect it to mikrotik?
You can’t install Linux on top of RouterOS, there can only be one OS.
If you have a RouterBOARD device, you could try to remove RouterOS and install Linux, but it will not be easy.
RouterBOARD is not powerful enough to be used as a WAMP server.