MSI MS-91F7 Manual de usuario descargar pdf (Pagina 207)

- The starting records of the Partition Table;

- The standard bootstrap code (or the initial code of boot managers, disk overlay software or boot

viruses).

Generally, the 0th sector is used for similar purposes in all existing partitioning schemes.

The MBR capacity is not sufficient to contain sophisticated boot programs. That’s why the on-boot

software is allowed to use the entire 0th track of the disk. For example, boot managing utilities such

as LILO, GRUB and Paragon Boot Manager are located in the 0th track.

Partition ID (or File system ID) is a file system identifier that is placed in the partition. It is used to quickly

detect partitions of supported types. A number of operating systems completely rely on it to

distinguish supported partitions.

Partition ID is saved in appropriate entries of the Partition Table and takes only 1 byte of space.

Partition Label (or Volume Label) is a small textual field (up to 11 characters) that is located in the

partition's boot sector. This value is used for notification purposes only. It is detectable by any

partitioning tool including the DOS FDISK utility.

Modern operating systems save it within a file system, e.g. as a special hidden file. Thus it is able to

contain a relatively large amount of text in multiple languages.

Partitioning Scheme is a set of rules, constraints and format of the on-disk structures to keep

information on partitions located on a hard disk.

There are known several partitioning schemes. The most popular of them is the so-called DOS

partitioning scheme. It was introduced by IBM and Microsoft to use multiple partitions in the disk

subsystems on IBM PC compatible computers.

Another popular partitioning scheme is the so-called Logical Disks Model (LDM) that originates from

the UNIX mainframe systems. Veritas Executive accommodates a simplified version of LDM to the

Windows 2000 operating system.

Windows 2000 and XP support two quite different partitioning schemes: the old DOS partitioning

scheme and the new Dynamic Disk Management (DDM). The problem is that earlier versions of

Windows do not support DDM. In addition, most hard disk utilities do not support it as well.

Recovery Media is a CD/DVD disc, a USB flash card or even a floppy disk from which you can boot

for maintenance or recovery purposes.

Root Directory is the top-level directory of a formatted logical drive to include other files and

directories. In modern file systems (Ext2/Ext3, NTFS and even FAT32) it does not differ from other

directories. This is not the case for old FAT12 and FAT16 file systems.

Serial Number. In the DOS partitioning scheme, every hard disk and every partition has a 32-bit serial

number represented by an 8-figure hexadecimal value. It is stored in the MBR and its value is

assigned when the MBR sector is initialized by Microsoft standard disk managing tools, such as

Windows Disk Administrator and the FDISK utility.

In fact, a hard disk's serial number is not important for most operating systems and software. It is

known that Windows NT, 2000 and XP store its value in the database of assigned drive letters.

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MSI MS-91F7 Manual de usuario Pagina 207