A Master Boot Record (MBR) is a special type of boot sector at the very beginning of partitioned computer mass storage devices like fixed disks or removable drives intended for use with IBM PC-compatible systems and beyond. The MBR holds the information on how the logical partitions, containing file systems, are organized on that medium. Besides that, the MBR functions as an operating system independent chain boot loader in conjunction with each partition's Volume Boot Record (VBR).
MBRs are not present on non-partitioned media like floppies, superfloppies or other storage devices configured to behave as such.
The concept of MBRs was introduced in 1983. With storage volumes now commonly exceeding 2 TB, it has become a limiting factor in the 2010s. The MBR partitioning scheme is therefore in the process of being superseded by the GUID Partition Table (GPT) scheme in new computers. A GPT can coexist with a MBR in order to provide some limited form of backward compatibility for older systems.
Other articles related to "master boot record":
... LILO can write a Master Boot Record on a device /sbin/lilo -M. ...
... dd is also a commonly used POSIX command to read or write to any location on a storage device, MBR included ... In Linux, ms-sys may be used to install a Windows MBR ...
... It is possible to repair a master boot record ... floppy drive dd if=/dev/fd0 of=MBRboot.img bs=512 count=2 To create an image of the entire master boot record (including the partition table) dd if=/dev/sda of=MBR.img bs ...
Famous quotes containing the words record, master and/or boot:
“No record ... can ... name the women of talent who were so submerged by child- bearing and its duties, and by general housework, that they had to leave their poems and stories all unwritten.”
—Anna Garlin Spencer (18511931)
“Into the woods my Master went,
Clean forspent, forspent.
Into the woods my Master came,
Forspent with love and shame,
But the olives they were not blind to Him;”
—Sidney Lanier (18421881)
“... until the shopkeeper plants his boot in our eyes,
and unties our bone and is finished with the case,
and turns to the next customer, forgetting our face
or how we knelt at the yellow bulb with sighs
like moth wings for a short while in a small place.”
—Anne Sexton (19281974)