很久之前做ubuntu的PXE配置ubuntu的preseed费了很大的力气，总结的不多，现在温习一下。
就我所接触的，有分区普通磁盘，LVM，和raid三种方式。其中前两中方式比较多，raid方式是建立软raid，如果有硬件raid，不许要这个。
先看我配置成功的例子：
# Partitioning
d-i partman-auto/method string regular
d-i partman-lvm/device_remove_lvm boolean true
d-i partman-md/device_remove_md boolean true
d-i partman-lvm/confirm boolean true
d-i partman-auto/expert_recipe string
boot-root ::
512 5000 512 ext4
$primary{ } $bootable{ }
method{ format } format{ }
use_filesystem{ } filesystem{ ext4 }
mountpoint{ /boot }
.
15000 5000 15000 ext4
$primary{ }
method{ format } format{ }
use_filesystem{ } filesystem{ ext4 }
mountpoint{ / }
.
30000 5000 30000 ext4
$primary{ }
method{ format } format{ }
use_filesystem{ } filesystem{ ext4 }
mountpoint{ /home }
.
15000 5000 15000 ext4
method{ format } format{ }
use_filesystem{ } filesystem{ ext4 }
mountpoint{ /var/log }
.
其中的参数含义：
lvm分区能够运行的例子
最终看一下一个preseed.cfg的例子：
### Partitioning
## Partitioning example
# If the system has free space you can choose to only partition that space.
# This is only honoured if partman-auto/method (below) is not set.
#d-i partman-auto/init_automatically_partition select biggest_free
# Alternatively, you may specify a disk to partition. If the system has only
# one disk the installer will default to using that, but otherwise the device
# name must be given in traditional, non-devfs format (so e.g. /dev/hda or
# /dev/sda, and not e.g. /dev/discs/disc0/disc).
# For example, to use the first SCSI/SATA hard disk:
#d-i partman-auto/disk string /dev/sda
# In addition, you'll need to specify the method to use.
# The presently available methods are:
# - regular: use the usual partition types for your architecture
# - lvm: use LVM to partition the disk
# - crypto: use LVM within an encrypted partition
d-i partman-auto/method string lvm
# If one of the disks that are going to be automatically partitioned
# contains an old LVM configuration, the user will normally receive a
# warning. This can be preseeded away...
d-i partman-lvm/device_remove_lvm boolean true
# The same applies to pre-existing software RAID array:
d-i partman-md/device_remove_md boolean true
# And the same goes for the confirmation to write the lvm partitions.
d-i partman-lvm/confirm boolean true
d-i partman-lvm/confirm_nooverwrite boolean true
# You can choose one of the three predefined partitioning recipes:
# - atomic: all files in one partition
# - home: separate /home partition
# - multi: separate /home, /usr, /var, and /tmp partitions
d-i partman-auto/choose_recipe select atomic
# Or provide a recipe of your own...
# If you have a way to get a recipe file into the d-i environment, you can
# just point at it.
#d-i partman-auto/expert_recipe_file string /hd-media/recipe
# If not, you can put an entire recipe into the preconfiguration file in one
# (logical) line. This example creates a small /boot partition, suitable
# swap, and uses the rest of the space for the root partition:
#d-i partman-auto/expert_recipe string
# boot-root ::
# 40 50 100 ext3
# $primary{ } $bootable{ }
# method{ format } format{ }
# use_filesystem{ } filesystem{ ext3 }
# mountpoint{ /boot }
# .
# 500 10000 1000000000 ext3
# method{ format } format{ }
# use_filesystem{ } filesystem{ ext3 }
# mountpoint{ / }
# .
# 64 512 300% linux-swap
# method{ swap } format{ }
# .
# The full recipe format is documented in the file partman-auto-recipe.txt
# included in the 'debian-installer' package or available from D-I source
# repository. This also documents how to specify settings such as file
# system labels, volume group names and which physical devices to include
# in a volume group.
# This makes partman automatically partition without confirmation, provided
# that you told it what to do using one of the methods above.
d-i partman-partitioning/confirm_write_new_label boolean true
d-i partman/choose_partition select finish
d-i partman/confirm boolean true
d-i partman/confirm_nooverwrite boolean true
## Partitioning using RAID
# The method should be set to "raid".
#d-i partman-auto/method string raid
# Specify the disks to be partitioned. They will all get the same layout,
# so this will only work if the disks are the same size.
#d-i partman-auto/disk string /dev/sda /dev/sdb
# Next you need to specify the physical partitions that will be used.
#d-i partman-auto/expert_recipe string
# multiraid ::
# 1000 5000 4000 raid
# $primary{ } method{ raid }
# .
# 64 512 300% raid
# method{ raid }
# .
# 500 10000 1000000000 raid
# method{ raid }
# .
# Last you need to specify how the previously defined partitions will be
# used in the RAID setup. Remember to use the correct partition numbers
# for logical partitions. RAID levels 0, 1, 5, 6 and 10 are supported;
# devices are separated using "#".
# Parameters are:
# <raidtype> <devcount> <sparecount> <fstype> <mountpoint>
# <devices> <sparedevices>
#d-i partman-auto-raid/recipe string
# 1 2 0 ext3 /
# /dev/sda1#/dev/sdb1
# .
# 1 2 0 swap -
# /dev/sda5#/dev/sdb5
# .
# 0 2 0 ext3 /home
# /dev/sda6#/dev/sdb6
# .
# For additional information see the file partman-auto-raid-recipe.txt
# included in the 'debian-installer' package or available from D-I source
# repository.
# This makes partman automatically partition without confirmation.
d-i partman-md/confirm boolean true
d-i partman-partitioning/confirm_write_new_label boolean true
d-i partman/choose_partition select finish
d-i partman/confirm boolean true
d-i partman/confirm_nooverwrite boolean true