I have a rt-n56u router with an external hard disk shared in NFS.
Sometimes this shared disk shows in Finder, sometimes not, and I need to reboot router AND mac yosemite - even if I can see it being shared in my router's admin interface - to make it available in my sidebar. Sometimes, I need to wait some minutes for it to show.
What can I do to "force", "refresh", "flush cache" or something like this for my hard disk to show again without all this hassle? I'm fine with command line.