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#!/bin/sh
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# don't let udev and this script step on eachother's toes
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for x in 64-lvm.rules 70-mdadm.rules 99-mount-rules; do
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> "/etc/udev/rules.d/$x"
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done
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rm -f -- /etc/lvm/lvm.conf
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modprobe btrfs
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udevadm control --reload
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set -e
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# save a partition at the beginning for future flagging purposes
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sfdisk /dev/sda <<EOF
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,1M
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,
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EOF
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sfdisk /dev/sdb <<EOF
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,1M
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,
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EOF
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udevadm settle
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mkfs.btrfs -L dracut /dev/sda2
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mkfs.btrfs -L dracutusr /dev/sdb2
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btrfs device scan /dev/sda2
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btrfs device scan /dev/sdb2
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mkdir -p /root
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mount -t btrfs /dev/sda2 /root
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[ -d /root/usr ] || mkdir /root/usr
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mount -t btrfs /dev/sdb2 /root/usr
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btrfs subvolume create /root/usr/usr
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umount /root/usr
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mount -t btrfs -o subvol=usr /dev/sdb2 /root/usr
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cp -a -t /root /source/*
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mkdir -p /root/run
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umount /root/usr
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umount /root
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echo "dracut-root-block-created" >/dev/sda1
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sync
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poweroff -f
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