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The partitioning is not required in general. For the boot device it is required only to a) allow the boot partition to be accessible via the BIOS API (to allow the MBR boot loader to load the grub or other boot loader properly if the latter is installed onto partition) and b) allow the boot partition to be readable by the grub or other boot loader (for example, grublilo can't read LVM's)

From all other points of view there is no need to have a device to be partitioned unless you have some reasons for it.

The partitioning is not required in general. For the boot device it is required only to a) allow the boot partition to be accessible via the BIOS API (to allow the MBR boot loader to load the grub or other boot loader properly if the latter is installed onto partition) and b) allow the boot partition to be readable by the grub or other boot loader (for example, grub can't read LVM's)

From all other points of view there is no need to have a device to be partitioned unless you have some reasons for it.

The partitioning is not required in general. For the boot device it is required only to a) allow the boot partition to be accessible via the BIOS API (to allow the MBR boot loader to load the grub or other boot loader properly if the latter is installed onto partition) and b) allow the boot partition to be readable by the grub or other boot loader (for example, lilo can't read LVM's)

From all other points of view there is no need to have a device to be partitioned unless you have some reasons for it.

1
source | link

The partitioning is not required in general. For the boot device it is required only to a) allow the boot partition to be accessible via the BIOS API (to allow the MBR boot loader to load the grub or other boot loader properly if the latter is installed onto partition) and b) allow the boot partition to be readable by the grub or other boot loader (for example, grub can't read LVM's)

From all other points of view there is no need to have a device to be partitioned unless you have some reasons for it.