Where is the boot loader, such as Grub, installed generally?
When I install 12.04 along side Windows on different partitions of my disk, I encountered a choice for "Device for boot loader installation". If I understand it correctly, it is to specify where to install the boot loader Grub,
I found on the internet that it is to specify the disk that contains the partitions for the OS, not any partition on the disk. E.g.
disk sda, not partition sda1, sda2.
Questions:
I wonder where the boot loader installed actually on the disk?
Is it installed on any of the existing partitions for the OSes and for personal data, or does it have its own partition, which is also visible e.g. from system monitor of Ubuntu?
Thanks and regards!