Revision [15616]
This is an old revision of fdisk made by coolpup on 2011-06-17 06:37:24.
Fdisk displays or updates the master boot record (M.B.R.) in the first sector (sector 0) of a disk that uses the MBR style of partitioning. It does not recognize GUID Partition Table (GPT) and it is not designed for large partitions: use the more advanced parted GNU Parted.
http://linux.die.net/man/8/fdisk
Usage: fdisk [-b SSZ] [-u] DISK Change partition table fdisk -l [-b SSZ] [-u] DISK List partition table(s) fdisk -s PARTITION Give partition size(s) in blocks fdisk -v Give fdisk version Here DISK is something like /dev/hdb or /dev/sda and PARTITION is something like /dev/hda7 -u: give Start and End in sector (instead of cylinder) units -b 2048: (for certain MO disks) use 2048-byte sectors
"Unfortunately, the fdisk and sfdisk tools from util-linux make it particularly hard to do this correctly, because they try to preserve an archaic geometry of 255 "heads" and 63 "sectors" and, by default, align partitions to "cylinder" boundaries. None of these units have any significance on today's hard drives or flash drives, but they are kept for backwards compatibility with existing software. The result is that most partitions are as misaligned as possible, they start on a odd-numbered 512-byte sector, which defeats all optimizations that a filesystem can do to align its accesses to logical blocks and segments inside of the partition."
http://lwn.net/Articles/428584/
