How to copy text of virtual terminal from graphics mode?

Linux have virtual terminals, one can switch between them with chvt 1, chvt 7 commands. Former is in the text mode, later is in the graphics mode. I want to copy all the text from first terminal, with some utility from graphics mode. fbgrab -c 1 ~/image.png saves an image, but in my case it is a transparent rectangle. There is no ebuild for fbdump, so I can't check it. And actually I want some paste (as with wgetpaste -s gists), not a picture. OS is Sabayon Linux with MATE DE on AMD GPU I need this because my chrome browser starts to execute some js, and hangs the system (mouse cursor freezes), then there is a message in virtual terminal about crash in chrome plugin. I want to paste that message, but don't know how to do this.