There a lot of guide how to split ISO file into multiple parts and merge them. But I want to split Linux ISO file into two parts, write on two DVD disks and install that Linux. Is it possible? How to do that?I would like to explain why I need it. I have a HP 6730b notebook and I have to install some custom distribution of Debian. I got this distribution on pendrive and it takes about 8GB. My notebook cannot be booted form this pendrive because the BIOS has some issue and the notebook hangs. I tried to update the BIOS but HP provides BIOS update files only for Windows. So I tried to update the BIOS according to this tutorial. I get error during bios update so I cannot update bios. So now I want to install Debian from the DVD but it is too large for one DVD disk. So I have to split it on to two DVD disks. 
Split linux installation ISO into two parts
system installation;iso