* origin/pr/4: archlinux: fix syntax errors in install file archlinux: add an install file specifically for vm-kernel-support kernel-support: compile u2mfn from source even if it has been never built archlinux: implement kernel-support archlinux: ensure gcc, make and pkgconfig are makedependenciespull/3/head mm_0a0b04f8
Marek Marczykowski-Górecki
8 years ago
commit
0a0b04f88d
@ -0,0 +1,51 @@
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#!/usr/bin/ash
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run_earlyhook() {
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msg "Starting Qubes copy on write setup script"
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if ! grep -q 'root=[^ ]*dmroot' /proc/cmdline; then
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warning "Qubes: dmroot not requested, probably not a Qubes VM"
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exit 0
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fi
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if [ -e /dev/mapper/dmroot ] ; then
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die "Qubes: FATAL error: /dev/mapper/dmroot already exists?!"
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fi
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modprobe xen-blkfront || warning "Qubes: Cannot load Xen Block Frontend..."
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msg "Qubes: Waiting for /dev/xvda* devices..."
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while ! [ -e /dev/xvda ]; do sleep 0.1; done
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msg "Qubes: /dev/xvda* found"
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SWAP_SIZE=$(( 1024 * 1024 * 2 )) # sectors, 1GB
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if [ `cat /sys/block/xvda/ro` = 1 ] ; then
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msg "Qubes: Doing COW setup for AppVM..."
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while ! [ -e /dev/xvdc ]; do sleep 0.1; done
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VOLATILE_SIZE=$(cat /sys/block/xvdc/size) # sectors
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ROOT_SIZE=$(cat /sys/block/xvda/size) # sectors
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if [ $VOLATILE_SIZE -lt $SWAP_SIZE ]; then
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die "Qubes: volatile.img smaller than 1GB, cannot continue"
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fi
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sfdisk -q --unit S /dev/xvdc >/dev/null <<EOF
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1,$SWAP_SIZE,S
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,,L
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EOF
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if [ $? -ne 0 ]; then
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die "Qubes: failed to setup partitions on volatile device"
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fi
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while ! [ -e /dev/xvdc1 ]; do sleep 0.1; done
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mkswap /dev/xvdc1
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while ! [ -e /dev/xvdc2 ]; do sleep 0.1; done
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echo "0 `cat /sys/block/xvda/size` snapshot /dev/xvda /dev/xvdc2 N 16" | \
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dmsetup --noudevsync create dmroot || die "Qubes: FATAL: cannot create dmroot!"
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fi
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dmsetup mknodes dmroot
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}
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@ -0,0 +1,20 @@
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#!/usr/bin/bash
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build() {
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add_module "xen-blkfront"
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add_module "u2mfn"
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add_binary "/usr/bin/sfdisk"
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add_binary "/usr/bin/mkswap"
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add_binary "/usr/bin/dmsetup"
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add_runscript
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}
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help() {
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cat <<HELPEOF
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This hook enables Qubes COW Setup (using lvm) in initramfs.
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HELPEOF
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}
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@ -0,0 +1,115 @@
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#!/bin/sh
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#
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# The Qubes OS Project, http://www.qubes-os.org
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#
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# Copyright (C) 2015 Marek Marczykowski-Górecki
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# <marmarekp@invisiblethingslab.com>
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#
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# This program is free software; you can redistribute it and/or
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# modify it under the terms of the GNU General Public License
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# as published by the Free Software Foundation; either version 2
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# of the License, or (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with this program; if not, write to the Free Software
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# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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#
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#
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set -e
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basedir=/var/lib/qubes/vm-kernels
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function recompile_u2mfn() {
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kver=$1
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u2mfn_ver=`dkms status u2mfn|tail -n 1|cut -f 2 -d ' '|tr -d ':,'`
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if ! modinfo -k "$kver" -n u2mfn 2>&1 > /dev/null; then
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echo "Module u2mfn not available. Checking available source to be built."
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u2mfn_ver=`cat /usr/src/u2mfn-*/dkms.conf | grep PACKAGE_VERSION | cut -d "=" -f 2 | tr -d '"' | sort -u | head -n 1`
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if [ -z "$u2mfn_ver" ] ; then
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echo "No source found for u2mfn. Is qubes-vm-kernel-support installed correctly?"
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return 1
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else
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echo "Found sources for u2mfn version $u2mfn_ver"
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fi
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dkms install u2mfn/$u2mfn_ver -k $kver --no-initrd
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fi
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}
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function build_modules_img() {
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kver=$1
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output_file=$2
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mkdir /tmp/qubes-modules-$kver
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truncate -s 400M /tmp/qubes-modules-$kver.img
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mkfs -t ext3 -F /tmp/qubes-modules-$kver.img > /dev/null
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mount /tmp/qubes-modules-$kver.img /tmp/qubes-modules-$kver -o loop
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cp -a -t /tmp/qubes-modules-$kver /lib/modules/$kver
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umount /tmp/qubes-modules-$kver
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rmdir /tmp/qubes-modules-$kver
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mv /tmp/qubes-modules-$kver.img $output_file
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}
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function build_initramfs() {
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kver=$1
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output_file=$2
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/sbin/dracut --nomdadmconf --nolvmconf --force \
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--modules "kernel-modules qubes-vm-simple" \
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--conf /dev/null --confdir /var/empty \
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-d "xenblk xen-blkfront cdrom ext4 jbd2 crc16 dm_snapshot" \
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$output_file $kver
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chmod 644 "$output_file"
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}
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function build_initcpio() {
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kver=$1
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output_file=$2
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mkinitcpio -k "$kver" -g "$output_file" -A qubes,lvm2
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chmod 644 "$output_file"
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}
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if [ -z "$1" ]; then
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echo "Usage: $0 <kernel-version> <kernel-name> [<display-kernel-version>]" >&2
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exit 1
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fi
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if [ ! -d /lib/modules/$1 ]; then
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echo "ERROR: Kernel version $1 not installed" >&2
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exit 1
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fi
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kernel_version=$1
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if [ -n "$2" ]; then
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kernel_code="-linux-$2"
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else
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kernel_code="-linux"
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fi
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if [ -n "$3" ]; then
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output_dir="$basedir/$3"
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else
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output_dir="$basedir/$kernel_version"
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fi
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echo "--> Building files for $kernel_version in $output_dir"
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echo "---> Recompiling kernel module (u2mfn)"
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recompile_u2mfn "$kernel_version"
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mkdir -p "$output_dir"
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cp "/boot/vmlinuz$kernel_code" "$output_dir/vmlinuz$kernel_code"
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echo "---> Generating modules.img"
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build_modules_img "$kernel_version" "$output_dir/modules.img"
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echo "---> Generating initramfs"
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build_initcpio "$kernel_version" "$output_dir/initramfs$kernel_code.img"
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echo "--> Done."
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@ -0,0 +1,30 @@
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help() {
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echo "Before using pvgrub, the kernel you want to use needs to be regenerated with Qubes kernel modules in the TemplateVM:"
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echo "1/ Ensure that your kernel and kernel sources are installed (ex: pacman -S linux-lts linux-lts-headers)"
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echo "2/ Ensure that grub config file has been generated for your kernel (ex: grub-mkconfig > /boot/grub/grub.cfg)"
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echo "3/ Run qubes-prepare-vm-kernel helper to compile Qubes-OS kernel modules and rebuild the initcpio"
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echo " Usage: qubes-prepare-vm-kernel [your kernel version - found in /usr/lib/modules] [your kernel name - ex: 'linux' for vanilla kernel 'linux-lts' for long term support kernel]"
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echo " Manual generation of initcpio:"
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echo " dkms install u2mfn/[u2mfn_version - found in /usr/src/] -k [kernel_version] --no-initrd"
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echo " mkinitcpio -k [kernel_version] -p [kernel_name]"
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}
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## arg 1: the new package version
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post_install() {
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echo "Adding qubes required hooks to mkinitcpio.conf"
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sed 's/^HOOKS="base/HOOKS="lvm2 qubes base/' -i /etc/mkinitcpio.conf
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help
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}
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post_upgrade() {
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echo "Adding qubes required hooks to mkinitcpio.conf"
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sed 's/^HOOKS="base/HOOKS="lvm2 qubes base/' -i /etc/mkinitcpio.conf
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help
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}
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post_remove() {
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echo "Removing qubes required hooks to mkinitcpio.conf"
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sed 's/^HOOKS="lvm2 qubes base/HOOKS="base/' -i /etc/mkinitcpio.conf
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}
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