parted

create_parted_partitions.py

#!/usr/bin/python

_TARGET_DISK       = '/dev/sdb'
_PARTITION_NUM     = 4

#--- parted _TARGET_DISK -s 'unit s print'

_DISK_SECTOR       = 17511219456
_OFFSET_START      = 2048
_OFFSET_END        = 34
_AVAILABLE_SECTOR  = _DISK_SECTOR - _OFFSET_START - _OFFSET_END
_PARTITION_SECTOR  = _AVAILABLE_SECTOR / _PARTITION_NUM / 2048 * 2048
_PARTED_COMMAND    = "parted %s -s 'unit s mkpart primary ext4 %12ds %12ds'"

for i in xrange(_PARTITION_NUM):
    if i == 0 : sector_start = _OFFSET_START
    else      : sector_start = sector_end + 1
    sector_end = sector_start + _PARTITION_SECTOR - 1
    print _PARTED_COMMAND % (_TARGET_DISK, sector_start, sector_end)