How to set more lines to scroll backwards, in text mode?

I want to scroll back 10000+ lines in text mode linux terminal. As there is an unlimit option in gnome-terminal, so I guess if this is also possible in text mode?

Solution 1:

You can increase the scrollback buffer size by changing the kernel configuration, recompile and re-install your new kernel. IN menuconfig

Device Drivers -> Graphics Support -> Console Display driver support

config VGACON_SOFT_SCROLLBACK_SIZE                                                                                                  
       int "Scrollback Buffer Size (in KB)"                                                                                         
       depends on VGACON_SOFT_SCROLLBACK                                                                                            
       range 1 1024                                                                                                                 
       default "64"                                                                                                                 
       help                                                                                                                         
         Enter the amount of System RAM to allocate for the scrollback                                                              
         buffer.  Each 64KB will give you approximately 16 80x25                                                                    
         screenfuls of scrollback buffer

Solution 2:

I believe it cannot be done in text mode: http://www.educ.umu.se/~bjorn/linux/linux-faq/Linux-FAQ-7.html

You can't increase the amount of scrollback, because it is implemented using the video memory to store the scrollback text. You may be able to get more scrollback in each virtual console by reducing the total number of VC's. See linux/tty.h.