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A bootable device can be storage devices like floppy disk, CD-ROM, USB flash drive, a partition on a hard disk (where a hard disk stores multiple OS, e.g Windows and Fedora), a storage device on local network, etc. [7] A hard disk to boot Linux stores the Master Boot Record (MBR), which contains the first-stage/primary bootloader in order to be ...
The system partition is the disk partition that contains the operating system folder, known as the system root. By default, in Linux, operating system files are mounted at / (the root directory). In Linux, a single partition can be both a boot and a system partition if both /boot/ and the root directory are in the same partition.
Many Linux distributions ship a single, generic Linux kernel image – one that the distribution's developers create specifically to boot on a wide variety of hardware. . The device drivers for this generic kernel image are included as loadable kernel modules because statically compiling many drivers into one kernel causes the kernel image to be much larger, perhaps too large to boot on ...
Some Unix-like systems have also introduced a concept called supermounting, as implemented in the Linux supermount-ng project. [4] For example, a floppy disk that has been supermounted can be physically removed from the system. Under normal circumstances, the disk should have been synchronized and then unmounted before its removal.
The mount point for the EFI system partition varies depending on the bootloader used. Older bootloaders such as GRUB 2 and lilo/elilo default to /boot/efi. Alternatively, systemd-boot prefers either /efi or /boot over /boot/efi due to potential complications with nested autofs mounts. Regardless of the mount point path, its contents are ...
The mount command instructs the operating system that a file system is ready to use, and associates it with a particular point in the overall file system hierarchy (its mount point) and sets options relating to its access. Mounting makes file systems, files, directories, devices and special files available for use and available to the user.
Mounting a file containing a disk image on a directory requires two steps: association of the file with a loop device node, mounting of the loop device at a mount point directory; These two operations can be performed either using two separate commands, or through special flags to the mount command.
The Boot File System (named BFS on Linux, but BFS also refers to the Be File System) was used on UnixWare to store files necessary to its boot process. [1]It does not support directories, and only allows contiguous allocation for files, to make it simpler to be used by the boot loader.