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1. Format of the recipe files
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2. Architecture specific recipes
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1. FORMAT OF THE RECIPE FILES
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-----------------------------
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All new lines and tabulations in the recipe are converted to spaces.
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Then two or more consecutive spaces are converted to one space.
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Almost all tokens must be separated by spaces. An important exception
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is the opening curly bracket ("{"), before it there must be _no_
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In the following rules we denote spaces by "_".
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<recipe>::=<header>_<partitions>
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<header>::=<simple name>|<debconf name>
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<simple name>::=<name>_:
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<name> can be for example "Multi user system".
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<debconf name>::=<debconf template>_::
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The purpose of <debconf name> is to allow translation of the names of
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the recipes into different languages.
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<partitions>::=<partition>|<partition>_<partitions>
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<partition>::=<limits>_<specifiers>_.
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<limits>::=<minimal size>_<priority>_<maximal size>_<parted fs>
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<minimal size> is the minimal allowed size of the partition in
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megabytes. It is rounded to cylinder size, so if you make <minimal
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size> to be 20 MB and the cylinder size is 12MB, then it is possible
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for the partition to be only 12MB.
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<maximal size> is the maximal size for the partition, i.e. a limit
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size such that there is no sense to make this partition larger.
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<priority> is some size usually between <minimal size> and <maximal
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size>. It determines the priority of this partition in the contest
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with the other partitions for size. Notice that if <priority> is too
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small (relative to the priority of the other partitions) then this
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partition will have size close to <minimal size>. That's why it is
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recommended to give small partitions a <priority> larger than their
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<parted fs> is the file system as known to parted of this partition.
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<specifiers>::=<specifier>|<specifier>_<specifiers>
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<specifier>::=<internal specifier>|<regular specifier>
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<internal specifier>::=$primary{_}|$bootable{_}
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$primary{_} says that the partition should be primary (if possible).
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$bootable{_} says that the bootable flag will be set.
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<regular specifier>::=<file name>{ <file contents> }
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<file name> is a file to be created in the directory of the partition.
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<file contents> is the information to write in this file.
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2. ARCHITECTURE DEPENTENT RECIPES
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---------------------------------
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Some architectures have specific requirements for their partitions.
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For example many of them require special partitions to support
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Suppose that the architecture is powerpc/powermac_newworld. Then
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partman-auto will look in the following places for recipes:
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/lib/partman/recipes-powerpc-powermac_newworld/*
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/lib/partman/recipes-powerpc/*
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/lib/partman/recipes/*
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Partman-auto will use the recipes from the first of these directories
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Due to limitation of the algorithms in partman-auto, there must be at
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least one partition with high maximal size so that the whole free
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space can be used. Usually you can give the partition containing /home
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a maximal size 1000000000 which is high enough for the present storage
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devices. Do not use higher than 1000000000 numbers because the shell
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arithmetic is limited to 31 bits (on i386).
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On May 25th 2004, it was noted that on i386 systems, the very minimum size of
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a Debian installation on a classical (/, /usr, /usr, /home) setup was:
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48MB on / (6MB on /boot)
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It is thus wise to use minimum values with this consideration in mind.
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