I would say start at wikipedia looking up terms and consider a couple of weeks to grasp the simple notions of what's involved. Start with MBR, limits on old dr

I would say start at wikipedia looking up terms and consider a couple of weeks to grasp the simple notions of what's involved. Start with MBR, limits on old drives, dig into various tricks to get around limitations ... not really relevant present day but it's good insight. Problems with bootlaoders are generally specific to the system it's on and how the drive(s) is / are set up. https://www.linux.org/threads/linux-bootloaders.8943/ https://www.linux.org/threads/linux-bootloaders.8943/ https://www.tecmint.com/best-linux-boot-loaders/ https://www.tecmint.com/best-linux-boot-loaders/ I think even old versions of Scott Mueller's "Upgrading and Repairing Pcs" might be of use to you. Digital versions could be found at archive.org.