Fdisk-l Display

A description of some numerical values of fdisk-l;

disk/dev/hda:80.0 GB, 80026361856 bytes

255 heads, Sectors/track, 9729 cylinders

Units = Cylinders of 16065 * 8225280 bytes

This hard drive is 80G, has 255 magnetic surface, 63 sectors, 9,729 magnetic columns, each cylinder (magnetic column) capacity is 8225280 bytes=8225.280 K (about) =8.225280m (about);

Partition sequence boot start terminating capacity partition type ID partition type

/DEV/HDA1 * 1 765 6144831 7 Hpfs/ntfs

/dev/hda2 766 2805 16386300 C W95 FAT32 (LBA)

/dev/hda3 2806 9729 55617030 5 Extended

Description: Hard disk partition representation: In Linux is represented by hd*x or sd*x, where * denotes a, B, c ... number 1, 2, 3 ... HD is mostly IDE hard disk; SD is mostly SCSI or mobile storage;

Boot: Represents the boot partition, HDA1 is the boot partition in the example above; active partition active

Start (start): Represents a partition starting from X cylinder (magnetic column);

End: Represents the end of a partition to Y cylinder (magnetic column);

The ID and system represent a meaning by specifying the ID to confirm the partition type, such as 7 for NTFS partitioning;

Blocks (volume): Is the meaning of the volume, its unit is k; the value of a partition capacity is derived from the following formula; Blocks = (corresponding partition end value-corresponding partition start value) x unit cylinder (magnetic column) capacity so let's count Hda1 's Blocks. Size: hda1 blocks= (765-1) x8225.280=6284113.92 K = 6284.113.92M

2010-02-21

This article is from the "Five Corners" blog, please be sure to keep this source http://hi289.blog.51cto.com/4513812/1764635

Fdisk-l Display