I would like to dual boot ArchLinux with my Ubuntu. I would like some hints at how to do it without messing my partitions too much.Presently, my Computer partition scheme goes like this:(Ubuntu only)sda    sda1    [boot loader]    sda2    [root]    sda3    [swap]    sda4    [home]If I were to install Arch only, I would have the same partition scheme.Now how should I prepare my partitions in order to successfully dual-boot? I have a suggestion though it may be a naive one:sda     sda1    [bootloader]  -> Will it detect Arch?    sda2    [root_ubuntu]    sda3    [swap]    sda4    [home_ubuntu] -> I have a lot of space, I could just resize and divide this partition.    sda5    [root_arch]    sda6    [home_arch]Will the above scheme be a workable implementation?In any case, what do you suggest I do? Which files (config, etc) will I have to create or modify?
Add ArchLinux to Ubuntu dual-boot
ubuntu;arch linux;partition;dual boot
This scheme is certainly workable. You are right, the best solution is to transform your current layout as little as it is possible.If you don't ask Arch Linux to install his Grub bootloader, you'll have to run grub-mkconfig -o /boot/grub/grub.cfg in Ubuntu (if you have os-prober installed, it will find your Arch installation and update all the config files automatically).You may find information you need about Grub in Arch Linux wiki: https://wiki.archlinux.org/index.php/GRUB (almost all the instuctions are applicable to current versions of Ubuntu)