[Bug 874239] Re: util-linux fdisk mixes size terminology (G=gigabyte, gibibyte?)

[Pych]

why does the size displayed using fdisk differs from the size calculated
by converting sector size.

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Title:
  util-linux fdisk mixes size terminology (G=gigabyte,gibibyte?)

Status in The Util-Linux-ng Set of Utilities:
  New
Status in “util-linux” package in Ubuntu:
  Opinion

Bug description:
  fdisk -p reports "2000.4 GB". The value printed is in gigabytes.

  When creating a new partition the user has the option of entering the
  size as "+sizeG". This value is interpreted in gibibytes.

  Oddly, Karel Zak - the maintainer of util-linux - apparently fixed
  this back in 2007. Either the patch did not make it into the upstream
  source tree, or the Ubuntu version has dropped it somewhere. See
  http://osdir.com/ml/linux.utilities.util-linux-
  ng/2007-12/msg00053.html

  
  Example follows.

  Command (m for help): p

  Disk /dev/sdc: 2000.4 GB, 2000398934016 bytes
  224 heads, 56 sectors/track, 311465 cylinders, total 3907029168 sectors
  Units = sectors of 1 * 512 = 512 bytes
  Sector size (logical/physical): 512 bytes / 4096 bytes
  I/O size (minimum/optimal): 4096 bytes / 4096 bytes
  Disk identifier: 0x188f7216

     Device Boot      Start         End      Blocks   Id  System

  Command (m for help): n
  Command action
     e   extended
     p   primary partition (1-4)
  p
  Partition number (1-4, default 1): 
  Using default value 1
  First sector (2048-3907029167, default 2048): +1864G
  Value out of range.
  First sector (2048-3907029167, default 2048): 
  Using default value 2048
  Last sector, +sectors or +size{K,M,G} (2048-3907029167, default 3907029167): +1864G
  Value out of range.

  Command (m for help): n
  Command action
     e   extended
     p   primary partition (1-4)
  p
  Partition number (1-4, default 1): 
  Using default value 1
  First sector (2048-3907029167, default 2048): 
  Using default value 2048
  Last sector, +sectors or +size{K,M,G} (2048-3907029167, default 3907029167): +1863G

  Command (m for help)

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