I don't know if this is simple or not, I've spent hours trying and haven't got anywhere. I'm trying to install Vista and it tells me that it needs at least 512mb of temp space to install.
When I check the df -h it tells me that the tmpfs is 479mb and 1% used. This seems small. I don't know how to change it. I've got over 100gb of free disk space. Any suggestions?