ostree/gnomeos/ostree-install.sh

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#!/bin/bash
# -*- indent-tabs-mode: nil; -*-
# Copyright (C) 2011,2012 Colin Walters <walters@verbum.org>
#
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# Prepare an empty OSTree setup on system; this presently uses the
# "host" kernel. This has no impact on the host system.
#
# Note also this script is idempotent - you can run it more than
# once, and you should in fact do so right now to update to a newer
# host kernel.
#
# This library is free software; you can redistribute it and/or
# modify it under the terms of the GNU Lesser General Public
# License as published by the Free Software Foundation; either
# version 2 of the License, or (at your option) any later version.
#
# This library is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
# Lesser General Public License for more details.
#
# You should have received a copy of the GNU Lesser General Public
# License along with this library; if not, write to the
# Free Software Foundation, Inc., 59 Temple Place - Suite 330,
# Boston, MA 02111-1307, USA.
set -e
set -x
WORKDIR=`pwd`
cd `dirname $0`
SRCDIR=`pwd`
cd $WORKDIR
if test $(id -u) != 0; then
cat <<EOF
This script should be run as root.
EOF
exit 1
fi
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mkdir -p /ostree
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cd /ostree
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mkdir -p modules
mkdir -p var
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if ! test -d repo; then
mkdir repo
ostree --repo=repo init
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fi
uname=$(uname -r)
if test -d /etc/grub.d; then
cp $SRCDIR/15_ostree /etc/grub.d/
else
cat <<EOF
GRUB 2 not detected; you'll need to edit e.g. /boot/grub/grub.conf manually
EOF
fi
kernel=/boot/vmlinuz-${uname}
if ! test -f "${kernel}"; then
cat <<EOF
Kernel does not exist: ${kernel}
EOF
exit 1
fi
if ! test -d /ostree/modules/${uname}; then
cp -ar /lib/modules/${uname} /ostree/modules/${uname}
fi
initrd_name=initramfs-ostree-${uname}.img
if ! test -f "/boot/${initrd_name}"; then
initrd_tmpdir=$(mktemp -d '/tmp/gnomeos-dracut.XXXXXXXXXX')
linux-user-chroot \
--mount-readonly / \
--mount-proc /proc \
--mount-bind /dev /dev \
--mount-bind /ostree/var /var \
--mount-bind ${initrd_tmpdir} /tmp \
--mount-bind /ostree/modules /lib/modules \
/ostree/${BRANCH_PREFIX}devel \
dracut -f /tmp/${initrd_name} "${uname}"
mv "${initrd_tmpdir}/${initrd_name}" "/boot/${initrd_name}"
rm -rf "${initrd_tmpdir}"
fi