Initial commit.

stretch-amd64/bin/basefs_config

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+#!/bin/sh
+
+TARGET=$1
+LANG=C
+VERSION="$(date +%g.%m)"
+
+SOFTWARE="acl acpi-support-base attr bash-completion bind9-host binutils \
+  bridge-utils bsdmainutils debootstrap dmidecode ethtool file gddrescue gdisk \
+  hddtemp hdparm ifenslave iproute2 iputils-ping less lsof lvm2 lzip \
+  mdadm mtr-tiny netcat-traditional net-tools ntfs-3g parted pciutils procps \
+  psmisc rsync screen scrub smartmontools ssh strace sysstat tar telnet \
+  traceroute tree usbutils vim vlan wget xz-utils systemd systemd-sysv"
+
+cat << EOF > ${TARGET}/usr/sbin/policy-rc.d
+#!/bin/sh
+echo "All runlevel operations denied by policy" >&2
+exit 101
+EOF
+chmod a+x $TARGET/usr/sbin/policy-rc.d
+
+chroot ${TARGET} apt-get --yes install ${SOFTWARE}
+chroot ${TARGET} systemctl enable systemd-networkd.service
+chroot ${TARGET} systemctl enable systemd-resolved.service
+
+rm ${TARGET}/usr/sbin/policy-rc.d
+
+echo "Etc/UTC" > ${TARGET}/etc/timezone
+chroot ${TARGET} dpkg-reconfigure -f noninteractive tzdata
+
+cat << EOF > ${TARGET}/etc/motd
+
+WARNING: Authorized access only!
+
+EOF
+cat << EOF > ${TARGET}/etc/issue
+WMI Rescue Linux (based on Debian GNU/Linux Stretch)
+Version ${VERSION}, AMD64
+
+EOF
+cat << EOF > ${TARGET}/etc/systemd/network/all.network
+[Match]
+
+[Network]
+DHCP=both
+EOF
+cat << EOF > ${TARGET}/etc/systemd/resolved.conf
+[Resolve]
+DNS=8.8.8.8 8.8.4.4 2001:4860:4860::8888 2001:4860:4860::8844
+EOF
+rm ${TARGET}/etc/resolv.conf
+ln -s /run/systemd/resolve/resolv.conf ${TARGET}/etc/resolv.conf
+cat << EOF > ${TARGET}/etc/screenrc
+startup_message off
+defscrollback 5000
+EOF
+cat << EOF > ${TARGET}/etc/sysctl.d/60-panic.conf
+kernel.panic = 5
+kernel.panic_on_oops = 1
+EOF
+rsync -avS ${TARGET}/etc/skel/ ${TARGET}/root/

stretch-amd64/bin/basefs_init

@@ -0,0 +1,27 @@
+#!/bin/sh
+
+TARGET=$1
+LANG=C
+
+mkdir ${TARGET}
+
+debootstrap --arch=amd64 --variant=minbase stretch ${TARGET} http://httpredir.debian.org/debian
+
+cat << EOF > ${TARGET}/etc/apt/sources.list
+deb http://httpredir.debian.org/debian stretch main contrib non-free
+deb http://security.debian.org/ stretch/updates main contrib non-free
+EOF
+
+cat << EOF > ${TARGET}/etc/apt/apt.conf.d/80small
+APT::Install-Recommends '0';
+APT::Install-Suggests '0';
+EOF
+
+echo wmirescue > ${TARGET}/etc/hostname
+
+echo 'root:wmi' | chroot ${TARGET} chpasswd
+
+chroot ${TARGET} apt-get update
+chroot ${TARGET} apt-get upgrade --yes
+chroot ${TARGET} apt-get clean
+

stretch-amd64/bin/helperfs_config

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+#!/bin/sh
+
+TARGET=$1
+LANG=C
+
+cat << EOF > $TARGET/usr/sbin/policy-rc.d
+#!/bin/sh
+echo "All runlevel operations denied by policy" >&2
+exit 101
+EOF
+chmod a+x $TARGET/usr/sbin/policy-rc.d
+
+chroot ${TARGET} mount -t proc proc /proc
+chroot ${TARGET} apt-get --yes install busybox-static linux-image-4.9.0-3-amd64
+chroot ${TARGET} apt-get --yes install linux-headers-4.9.0-3-amd64
+chroot ${TARGET} apt-get --yes install zfs-dkms
+chroot ${TARGET} umount /proc

stretch-amd64/bin/ramdisk_config

@@ -0,0 +1,80 @@
+#!/bin/sh
+
+TARGET=$1
+LANG=C
+
+cat << EOF > ${TARGET}/message
+** WMI Rescue Linux (amd64) booting **
+EOF
+
+for cmd in cat echo find insmod mkdir mount sh switch_root tar; do
+    ln -s busybox ${TARGET}/bin/${cmd}
+done
+
+cat << EOF > ${TARGET}/init
+#!/bin/sh
+# WMI Rescue Linux init script.
+# (C)2011 Michał Siejak <masterm@wmi.amu.edu.pl>
+# (C)2012-2017 Mateusz Hromada <ruanda@wmi.amu.edu.pl>
+
+# Print message banner
+cat /message
+
+# Mount virtual filesystems
+mount -t proc proc /proc
+mount -t sysfs sysfs /sys
+mount -t devtmpfs devfs /dev
+
+# Create dev directories
+mkdir -p /dev/pts
+mkdir -p /dev/shm
+
+# Create mount points
+mkdir /rootfs
+mkdir /mnt
+mkdir /mnt/squashfs
+mkdir /mnt/tmpfs
+
+# Load modules
+insmod /lib/modules/4.9.0-3-amd64/kernel/drivers/block/loop.ko
+insmod /lib/modules/4.9.0-3-amd64/kernel/fs/squashfs/squashfs.ko
+insmod /lib/modules/4.9.0-3-amd64/kernel/fs/overlayfs/overlay.ko
+
+# Mount root filesystem
+echo "INITRAMFS: Mounting overlayfs branches ..."
+mount -t squashfs -o loop,ro /rootfs.squash /mnt/squashfs
+mount -t tmpfs -o mode=755,rw tmpfs /mnt/tmpfs
+mkdir /mnt/tmpfs/rw
+mkdir /mnt/tmpfs/work
+mount -t overlay -o rw,workdir=/mnt/tmpfs/work,upperdir=/mnt/tmpfs/rw,lowerdir=/mnt/squashfs overlay /rootfs
+
+# Extract any addon packages
+if [ -n "$(find . -maxdepth 1 -name '*.tar')" ]; then
+  for i in /*.tar; do
+    echo "INITRAMFS: Extracting: $i ..."
+    tar x -f $i -C /rootfs
+  done
+fi
+
+echo "INITRAMFS: Preparing rootfs environment ..."
+# Move aufs branches to new root
+mkdir -p /rootfs/media/.squashfs
+mkdir -p /rootfs/media/.tmpfs
+mount --move /mnt/squashfs /rootfs/media/.squashfs
+mount --move /mnt/tmpfs /rootfs/media/.tmpfs
+
+# Move virtual filesystems to new root
+mount --move /proc /rootfs/proc
+mount --move /sys /rootfs/sys
+mount --move /dev /rootfs/dev
+
+# Switch to new root filesystem
+echo "INITRAMFS: Switching to new rootfs ..."
+exec switch_root -c /dev/console /rootfs /sbin/init
+
+# Should not reach here
+echo "INITRAMFS: Could not switch to new rootfs! System halted."
+
+exit 0
+EOF
+chmod a+x ${TARGET}/init

stretch-amd64/bin/ramdisk_make

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+#!/bin/sh
+
+TARGET=$1
+RAMDISK=$2
+
+
+if [ ! -d "${RAMDISK}" ]; then
+  echo "Usage: $0 <ramdisk_img> <ramdisk_dir>"
+  exit 255
+fi
+
+echo "Generating initramfs..."
+(cd ${RAMDISK}; find . | cpio -H newc -o | gzip -1) > ${TARGET}

stretch-amd64/bin/ramdisk_modules

@@ -0,0 +1,27 @@
+#!/bin/sh
+
+TARGET=$1
+ROOTFS=$2
+VERSION=$3
+
+if [ ! -d "$TARGET" -o ! -d "$ROOTFS" ]; then
+    echo "Usage: $0 <ramdisk_dir> <rootfs_dir> <version>"
+    exit 255
+fi
+
+add_module() {
+    for kmod in $(modprobe --dirname=${ROOTFS} --set-version="$VERSION" --ignore-install --quiet --show-depends "$1" | awk '/^insmod/ { print $2 }'); do
+        path=$(realpath --relative-to ${ROOTFS} ${kmod})
+        if [ -e $TARGET/$path ]; then
+            continue
+        fi
+        mkdir -p $TARGET/$(dirname $path)
+        cp $kmod $TARGET/$(dirname $path)
+    done
+}
+
+echo "Loading modules..."
+for i in loop squashfs overlay; do
+    add_module $i
+done
+

stretch-amd64/bin/rootfs_clear

@@ -0,0 +1,42 @@
+#!/bin/sh
+
+TARGET=$1
+
+CLEANDIRS="\
+tmp \
+usr/doc \
+usr/include \
+usr/info \
+usr/man \
+usr/share/doc \
+usr/share/doc-base \
+usr/share/groff \
+usr/share/info \
+usr/share/locale \
+usr/share/man \
+var/cache/apt/archives \
+var/cache/man \
+var/lib/apt/lists \
+var/tmp"
+
+if [ ! -d "${TARGET}" ]; then
+    echo "Usage: $0 <rootfs_dir>"
+    exit 255
+fi
+
+echo "Cleaning up ${TARGET}..."
+
+find ${TARGET} -name \*~ -delete
+for dir in ${CLEANDIRS}; do
+    rm -rf ${TARGET}/${dir}/*
+done
+rm -f ${TARGET}/var/cache/apt/*.bin
+rm -f ${TARGET}/root/.{bash_history,viminfo}
+
+mkdir -p ${TARGET}/var/lib/apt/lists/partial
+mkdir -p ${TARGET}/var/cache/apt/archives/partial
+
+for file in $(find ${TARGET}/var/log -type f); do
+    : > ${file}
+done
+

stretch-amd64/bin/rootfs_mksquashfs

@@ -0,0 +1,13 @@
+#!/bin/sh
+
+TARGET=$1
+DEST=$2
+
+if [ ! -d "${TARGET}" ]; then
+  echo "Usage: $0 <rootfs_dir> <squashfs_image>"
+  exit 255
+fi
+
+echo "Generating squashfs..."
+rm -f ${DEST}
+mksquashfs ${TARGET} ${DEST} -comp xz -b 1M -no-exports -noI -Xbcj x86

stretch-amd64/mkrescue

@@ -0,0 +1,30 @@
+#!/bin/sh
+
+TARGET=$1
+
+mkdir ${TARGET}
+
+./bin/basefs_init ${TARGET}/basefs
+
+cp -a ${TARGET}/basefs ${TARGET}/helperfs
+./bin/helperfs_config ${TARGET}/helperfs
+
+./bin/basefs_config ${TARGET}/basefs
+
+cp -a ${TARGET}/basefs ${TARGET}/rootfs
+./bin/rootfs_clear ${TARGET}/rootfs
+mkdir -p ${TARGET}/rootfs/lib/modules
+rsync -aS ${TARGET}/helperfs/lib/modules/ ${TARGET}/rootfs/lib/modules/
+
+for dir in sys lib/modules dev bin proc; do
+    mkdir -p ${TARGET}/ramdisk/${dir}
+done
+./bin/rootfs_mksquashfs ${TARGET}/rootfs ${TARGET}/ramdisk/rootfs.squash
+./bin/ramdisk_modules ${TARGET}/ramdisk ${TARGET}/rootfs 4.9.0-3-amd64
+cp ${TARGET}/helperfs/bin/busybox ${TARGET}/ramdisk/bin/busybox
+./bin/ramdisk_config ${TARGET}/ramdisk
+
+mkdir ${TARGET}/output
+./bin/ramdisk_make ${TARGET}/output/initrd.img ${TARGET}/ramdisk
+
+cp ${TARGET}/helperfs/boot/vmlinuz-4.9.0-3-amd64 ${TARGET}/output/vmlinuz