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<% title "Partition table configuration" %>
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<% title_actions link_to("New partition table", new_ptable_path) %>
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<div id="welcome">
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<p> A partition table entry represents either </p>
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<ul>
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<li> An explicit layout for the partitions of your hard drive(s). E.G.</li>
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<pre>
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zerombr yes
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clearpart --all --initlabel
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part /boot --fstype ext3 --size=100 --asprimary
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part / --fstype ext3 --size=1024 --grow
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part swap --recommended
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</pre>
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<li>A script to dynamically calculate the desired sizes. E.G.</li>
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<pre>
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#Dynamic - The below code is to manage the swap size
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#get the actual memory installed on the system and divide by 1024 to get it in MB
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usable_ram=$((`awk '$1 ~ /^MemTotal/ {printf "%d\n", $2 / 1024}' /proc/meminfo`))
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#check if the memory is less than 2GB then swap is double the memory else it is maximum 24 G for really inactive stuff.
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if [ "$usable_ram" -le 2048 ]; then
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swap_size=$(($usable_ram * 2))
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else
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swap_size=$(($usable_ram + 2048))
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fi
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if [ $swap_size -gt 24576 ] ; then
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swap_size=24576
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fi
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#copy all the HDD partitions to the temp file for execution
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cat <<EOF > /tmp/diskpart.cfg
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zerombr yes
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clearpart --all --initlabel
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part swap --size 250 --maxsize "$swap_size" --grow
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part /boot --fstype ext3 --size 100 --asprimary
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part / --fstype ext3 --size 8192 --maxsize 12288 --grow
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part /tmp2 --size 250 --fstype ext3 --grow
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EOF
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</pre>
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</ul>
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<p>
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The inclusion of the keyword string <b>#Dynamic</b> at the start of a line lets Foreman know that this is not an explicit disk layout and must treated as a shell script, executed prior
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to the install process and that the explicit partition table will be found at <b>/tmp/diskpart.cfg</b> during the build process.
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</p>
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<p>
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The dynamic partitioning style is currently only available for the Redhat family of operating systems, all others must provide an explicit list of partitions and sizes.
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</p>
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<p>
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You may also associate one or more operating systems with this partition table or alternatively set this up later on the <%= link_to "Operating systems", operatingsystems_path -%> page.
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</p>
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</div>
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