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57.

The <literal>auto</literal> boot label is not yet defined on all architectures. The same effect may be achieved by simply adding the two parameters <literal>auto=true priority=critical</literal> to the kernel command line. The <literal>auto</literal> parameter is an alias for <literal>auto-install/enable</literal> and controls the delay of the locale and keyboard questions until after there has been a chance to preseed them, while <literal>priority</literal> is an alias for <literal>debconf/priority</literal> and setting it to <literal>critical</literal> stops any questions with a lower priority from being asked.

61.

The following aliases can be useful when using (auto mode) preseeding.

139.

# NOTE: this option is of beta release quality and should be used carefully

# 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/discs/disc0/disc /dev/discs/disc1/disc

# 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.
# Parameters are:
# &lt;raidtype&gt; &lt;devcount&gt; &lt;sparecount&gt; &lt;fstype&gt; &lt;mountpoint&gt; \
# &lt;devices&gt; &lt;sparedevices&gt;
# RAID levels 0, 1, 5, 6 and 10 are supported; devices are separated using "#"
#d-i partman-auto-raid/recipe string \
# 1 2 0 ext3 / \
# /dev/discs/disc0/part1#/dev/discs/disc1/part1 \
# . \
# 1 2 0 swap - \
# /dev/discs/disc0/part5#/dev/discs/disc1/part5 \
# . \
# 0 2 0 ext3 /home \
# /dev/discs/disc0/part6#/dev/discs/disc1/part6 \
# .

# This makes partman automatically partition without confirmation.
d-i partman-md/confirm boolean true
d-i partman/confirm_write_new_label boolean true
d-i partman/choose_partition select finish
d-i partman/confirm boolean true

179.

# d-i preseeding is inherently not secure. Nothing in the installer checks
# for attempts at buffer overflows or other exploits of the values of a
# preconfiguration file like this one. Only use preconfiguration files from
# trusted locations! To drive that home, and because it's generally useful,
# here's a way to run any shell command you'd like inside the installer,
# automatically.

# This first command is run as early as possible, just after
# preseeding is read.
#d-i preseed/early_command string anna-install some-udeb

# This command is run just before the install finishes, but when there is
# still a usable /target directory. You can chroot to /target and use it
# directly, or use the apt-install and in-target commands to easily install
# packages and run commands in the target system.
#d-i preseed/late_command string apt-install zsh; in-target chsh -s /bin/zsh

182.

If you are preseeding using boot parameters, you can make the installer ask the corresponding question by using the <quote>?=</quote> operator, i.e. <userinput><replaceable>foo</replaceable>/<replaceable>bar</replaceable>?=<replaceable>value</replaceable></userinput>. This will of course only have effect for parameters that correspond to questions that are actually displayed during an installation and not for <quote>internal</quote> parameters.