Take the 2-minute tour ×  How can I check on which partition
Ubuntu installed my bootloader from within Ubuntu?
share|improve this question  3 Answers 3  up vote 2 down vote
accepted  sudo fdisk -l /dev/sda  Where sda is the disk you want
to check the partitions, one of them should be listed as boot
partition, if you have more then 1 disk there can be other
partitions marked as boot, the next logical disk is sdb followed
by sdc, etc.  If you have more then a disk and more than 1
partition is marked as boot the booting will be determined by
the selected boot device in your BIOS.  share|improve this
answer  It depends on what you mean by installed. Grub places
some files in the /boot directory, which usually is on the same
partition as /. It also embeds its core image to the Master Boot
Record of the drive, and the following several sectors that are
not part of any partition, so in that sense, it is not installed
to any partition, but rather to the whole disk.  You can check
the output of df to see what partit