|
|
#! @shell@
|
|
|
|
|
|
targetRoot=/mnt-root
|
|
|
console=tty1
|
|
|
verbose="@verbose@"
|
|
|
|
|
|
info() {
|
|
|
if [[ -n "$verbose" ]]; then
|
|
|
echo "$@"
|
|
|
fi
|
|
|
}
|
|
|
|
|
|
extraUtils="@extraUtils@"
|
|
|
export LD_LIBRARY_PATH=@extraUtils@/lib
|
|
|
export PATH=@extraUtils@/bin
|
|
|
ln -s @extraUtils@/bin /bin
|
|
|
|
|
|
# Copy the secrets to their needed location
|
|
|
if [ -d "@extraUtils@/secrets" ]; then
|
|
|
for secret in $(cd "@extraUtils@/secrets"; find . -type f); do
|
|
|
mkdir -p $(dirname "/$secret")
|
|
|
ln -s "@extraUtils@/secrets/$secret" "$secret"
|
|
|
done
|
|
|
fi
|
|
|
|
|
|
# Stop LVM complaining about fd3
|
|
|
export LVM_SUPPRESS_FD_WARNINGS=true
|
|
|
|
|
|
fail() {
|
|
|
if [ -n "$panicOnFail" ]; then exit 1; fi
|
|
|
|
|
|
@preFailCommands@
|
|
|
|
|
|
# If starting stage 2 failed, allow the user to repair the problem
|
|
|
# in an interactive shell.
|
|
|
cat <<EOF
|
|
|
|
|
|
An error occurred in stage 1 of the boot process, which must mount the
|
|
|
root filesystem on \`$targetRoot' and then start stage 2. Press one
|
|
|
of the following keys:
|
|
|
|
|
|
EOF
|
|
|
if [ -n "$allowShell" ]; then cat <<EOF
|
|
|
i) to launch an interactive shell
|
|
|
f) to start an interactive shell having pid 1 (needed if you want to
|
|
|
start stage 2's init manually)
|
|
|
EOF
|
|
|
fi
|
|
|
cat <<EOF
|
|
|
r) to reboot immediately
|
|
|
*) to ignore the error and continue
|
|
|
EOF
|
|
|
|
|
|
read -n 1 reply
|
|
|
|
|
|
if [ -n "$allowShell" -a "$reply" = f ]; then
|
|
|
exec setsid @shell@ -c "exec @shell@ < /dev/$console >/dev/$console 2>/dev/$console"
|
|
|
elif [ -n "$allowShell" -a "$reply" = i ]; then
|
|
|
echo "Starting interactive shell..."
|
|
|
setsid @shell@ -c "exec @shell@ < /dev/$console >/dev/$console 2>/dev/$console" || fail
|
|
|
elif [ "$reply" = r ]; then
|
|
|
echo "Rebooting..."
|
|
|
reboot -f
|
|
|
else
|
|
|
info "Continuing..."
|
|
|
fi
|
|
|
}
|
|
|
|
|
|
trap 'fail' 0
|
|
|
|
|
|
|
|
|
# Print a greeting.
|
|
|
info
|
|
|
info "[1;32m<<< NixOS Stage 1 >>>[0m"
|
|
|
info
|
|
|
|
|
|
# Make several required directories.
|
|
|
mkdir -p /etc/udev
|
|
|
touch /etc/fstab # to shut up mount
|
|
|
ln -s /proc/mounts /etc/mtab # to shut up mke2fs
|
|
|
touch /etc/udev/hwdb.bin # to shut up udev
|
|
|
touch /etc/initrd-release
|
|
|
|
|
|
# Function for waiting for device(s) to appear.
|
|
|
waitDevice() {
|
|
|
local device="$1"
|
|
|
# Split device string using ':' as a delimiter as bcachefs
|
|
|
# uses this for multi-device filesystems, i.e. /dev/sda1:/dev/sda2:/dev/sda3
|
|
|
local IFS=':'
|
|
|
|
|
|
# USB storage devices tend to appear with some delay. It would be
|
|
|
# great if we had a way to synchronously wait for them, but
|
|
|
# alas... So just wait for a few seconds for the device to
|
|
|
# appear.
|
|
|
for dev in $device; do
|
|
|
if test ! -e $dev; then
|
|
|
echo -n "waiting for device $dev to appear..."
|
|
|
try=20
|
|
|
while [ $try -gt 0 ]; do
|
|
|
sleep 1
|
|
|
# also re-try lvm activation now that new block devices might have appeared
|
|
|
lvm vgchange -ay
|
|
|
# and tell udev to create nodes for the new LVs
|
|
|
udevadm trigger --action=add
|
|
|
if test -e $dev; then break; fi
|
|
|
echo -n "."
|
|
|
try=$((try - 1))
|
|
|
done
|
|
|
echo
|
|
|
[ $try -ne 0 ]
|
|
|
fi
|
|
|
done
|
|
|
}
|
|
|
|
|
|
# Mount special file systems.
|
|
|
specialMount() {
|
|
|
local device="$1"
|
|
|
local mountPoint="$2"
|
|
|
local options="$3"
|
|
|
local fsType="$4"
|
|
|
|
|
|
mkdir -m 0755 -p "$mountPoint"
|
|
|
mount -n -t "$fsType" -o "$options" "$device" "$mountPoint"
|
|
|
}
|
|
|
source @earlyMountScript@
|
|
|
|
|
|
# Copy initrd secrets from /.initrd-secrets to their actual destinations
|
|
|
if [ -d "/.initrd-secrets" ]; then
|
|
|
#
|
|
|
# Secrets are named by their full destination pathname and stored
|
|
|
# under /.initrd-secrets/
|
|
|
#
|
|
|
for secret in $(cd "/.initrd-secrets"; find . -type f); do
|
|
|
mkdir -p $(dirname "/$secret")
|
|
|
cp "/.initrd-secrets/$secret" "$secret"
|
|
|
done
|
|
|
fi
|
|
|
|
|
|
# Log the script output to /dev/kmsg or /run/log/stage-1-init.log.
|
|
|
mkdir -p /tmp
|
|
|
mkfifo /tmp/stage-1-init.log.fifo
|
|
|
logOutFd=8 && logErrFd=9
|
|
|
eval "exec $logOutFd>&1 $logErrFd>&2"
|
|
|
if test -w /dev/kmsg; then
|
|
|
tee -i < /tmp/stage-1-init.log.fifo /proc/self/fd/"$logOutFd" | while read -r line; do
|
|
|
if test -n "$line"; then
|
|
|
echo "<7>stage-1-init: [$(date)] $line" > /dev/kmsg
|
|
|
fi
|
|
|
done &
|
|
|
else
|
|
|
mkdir -p /run/log
|
|
|
tee -i < /tmp/stage-1-init.log.fifo /run/log/stage-1-init.log &
|
|
|
fi
|
|
|
exec > /tmp/stage-1-init.log.fifo 2>&1
|
|
|
|
|
|
|
|
|
# Process the kernel command line.
|
|
|
export stage2Init=/init
|
|
|
for o in $(cat /proc/cmdline); do
|
|
|
case $o in
|
|
|
console=*)
|
|
|
set -- $(IFS==; echo $o)
|
|
|
params=$2
|
|
|
set -- $(IFS=,; echo $params)
|
|
|
console=$1
|
|
|
;;
|
|
|
init=*)
|
|
|
set -- $(IFS==; echo $o)
|
|
|
stage2Init=$2
|
|
|
;;
|
|
|
boot.persistence=*)
|
|
|
set -- $(IFS==; echo $o)
|
|
|
persistence=$2
|
|
|
;;
|
|
|
boot.persistence.opt=*)
|
|
|
set -- $(IFS==; echo $o)
|
|
|
persistence_opt=$2
|
|
|
;;
|
|
|
boot.trace|debugtrace)
|
|
|
# Show each command.
|
|
|
set -x
|
|
|
;;
|
|
|
boot.shell_on_fail)
|
|
|
allowShell=1
|
|
|
;;
|
|
|
boot.debug1|debug1) # stop right away
|
|
|
allowShell=1
|
|
|
fail
|
|
|
;;
|
|
|
boot.debug1devices) # stop after loading modules and creating device nodes
|
|
|
allowShell=1
|
|
|
debug1devices=1
|
|
|
;;
|
|
|
boot.debug1mounts) # stop after mounting file systems
|
|
|
allowShell=1
|
|
|
debug1mounts=1
|
|
|
;;
|
|
|
boot.panic_on_fail|stage1panic=1)
|
|
|
panicOnFail=1
|
|
|
;;
|
|
|
root=*)
|
|
|
# If a root device is specified on the kernel command
|
|
|
# line, make it available through the symlink /dev/root.
|
|
|
# Recognise LABEL= and UUID= to support UNetbootin.
|
|
|
set -- $(IFS==; echo $o)
|
|
|
if [ $2 = "LABEL" ]; then
|
|
|
root="/dev/disk/by-label/$3"
|
|
|
elif [ $2 = "UUID" ]; then
|
|
|
root="/dev/disk/by-uuid/$3"
|
|
|
else
|
|
|
root=$2
|
|
|
fi
|
|
|
ln -s "$root" /dev/root
|
|
|
;;
|
|
|
copytoram)
|
|
|
copytoram=1
|
|
|
;;
|
|
|
findiso=*)
|
|
|
# if an iso name is supplied, try to find the device where
|
|
|
# the iso resides on
|
|
|
set -- $(IFS==; echo $o)
|
|
|
isoPath=$2
|
|
|
;;
|
|
|
esac
|
|
|
done
|
|
|
|
|
|
# Set hostid before modules are loaded.
|
|
|
# This is needed by the spl/zfs modules.
|
|
|
@setHostId@
|
|
|
|
|
|
# Load the required kernel modules.
|
|
|
mkdir -p /lib
|
|
|
ln -s @modulesClosure@/lib/modules /lib/modules
|
|
|
ln -s @modulesClosure@/lib/firmware /lib/firmware
|
|
|
# see comment in stage-1.nix for explanation
|
|
|
echo @extraUtils@/bin/modprobe-kernel > /proc/sys/kernel/modprobe
|
|
|
for i in @kernelModules@; do
|
|
|
info "loading module $(basename $i)..."
|
|
|
modprobe $i
|
|
|
done
|
|
|
|
|
|
|
|
|
# Create device nodes in /dev.
|
|
|
@preDeviceCommands@
|
|
|
info "running udev..."
|
|
|
ln -sfn /proc/self/fd /dev/fd
|
|
|
ln -sfn /proc/self/fd/0 /dev/stdin
|
|
|
ln -sfn /proc/self/fd/1 /dev/stdout
|
|
|
ln -sfn /proc/self/fd/2 /dev/stderr
|
|
|
mkdir -p /etc/systemd
|
|
|
ln -sfn @linkUnits@ /etc/systemd/network
|
|
|
mkdir -p /etc/udev
|
|
|
ln -sfn @udevRules@ /etc/udev/rules.d
|
|
|
mkdir -p /dev/.mdadm
|
|
|
systemd-udevd --daemon
|
|
|
udevadm trigger --action=add
|
|
|
udevadm settle
|
|
|
|
|
|
|
|
|
# XXX: Use case usb->lvm will still fail, usb->luks->lvm is covered
|
|
|
@preLVMCommands@
|
|
|
|
|
|
info "starting device mapper and LVM..."
|
|
|
lvm vgchange -ay
|
|
|
|
|
|
if test -n "$debug1devices"; then fail; fi
|
|
|
|
|
|
|
|
|
@postDeviceCommands@
|
|
|
|
|
|
|
|
|
# Check the specified file system, if appropriate.
|
|
|
checkFS() {
|
|
|
local device="$1"
|
|
|
local fsType="$2"
|
|
|
|
|
|
# Only check block devices.
|
|
|
if [ ! -b "$device" ]; then return 0; fi
|
|
|
|
|
|
# Don't check ROM filesystems.
|
|
|
if [ "$fsType" = iso9660 -o "$fsType" = udf ]; then return 0; fi
|
|
|
|
|
|
# Don't check resilient COWs as they validate the fs structures at mount time
|
|
|
if [ "$fsType" = btrfs -o "$fsType" = zfs -o "$fsType" = bcachefs ]; then return 0; fi
|
|
|
|
|
|
# Skip fsck for apfs as the fsck utility does not support repairing the filesystem (no -a option)
|
|
|
if [ "$fsType" = apfs ]; then return 0; fi
|
|
|
|
|
|
# Skip fsck for nilfs2 - not needed by design and no fsck tool for this filesystem.
|
|
|
if [ "$fsType" = nilfs2 ]; then return 0; fi
|
|
|
|
|
|
# Skip fsck for inherently readonly filesystems.
|
|
|
if [ "$fsType" = squashfs ]; then return 0; fi
|
|
|
|
|
|
# If we couldn't figure out the FS type, then skip fsck.
|
|
|
if [ "$fsType" = auto ]; then
|
|
|
echo 'cannot check filesystem with type "auto"!'
|
|
|
return 0
|
|
|
fi
|
|
|
|
|
|
# Device might be already mounted manually
|
|
|
# e.g. NBD-device or the host filesystem of the file which contains encrypted root fs
|
|
|
if mount | grep -q "^$device on "; then
|
|
|
echo "skip checking already mounted $device"
|
|
|
return 0
|
|
|
fi
|
|
|
|
|
|
# Optionally, skip fsck on journaling filesystems. This option is
|
|
|
# a hack - it's mostly because e2fsck on ext3 takes much longer to
|
|
|
# recover the journal than the ext3 implementation in the kernel
|
|
|
# does (minutes versus seconds).
|
|
|
if test -z "@checkJournalingFS@" -a \
|
|
|
\( "$fsType" = ext3 -o "$fsType" = ext4 -o "$fsType" = reiserfs \
|
|
|
-o "$fsType" = xfs -o "$fsType" = jfs -o "$fsType" = f2fs \)
|
|
|
then
|
|
|
return 0
|
|
|
fi
|
|
|
|
|
|
echo "checking $device..."
|
|
|
|
|
|
fsck -V -a "$device"
|
|
|
fsckResult=$?
|
|
|
|
|
|
if test $(($fsckResult | 2)) = $fsckResult; then
|
|
|
echo "fsck finished, rebooting..."
|
|
|
sleep 3
|
|
|
reboot -f
|
|
|
fi
|
|
|
|
|
|
if test $(($fsckResult | 4)) = $fsckResult; then
|
|
|
echo "$device has unrepaired errors, please fix them manually."
|
|
|
fail
|
|
|
fi
|
|
|
|
|
|
if test $fsckResult -ge 8; then
|
|
|
echo "fsck on $device failed."
|
|
|
fail
|
|
|
fi
|
|
|
|
|
|
return 0
|
|
|
}
|
|
|
|
|
|
|
|
|
# Function for mounting a file system.
|
|
|
mountFS() {
|
|
|
local device="$1"
|
|
|
local mountPoint="$2"
|
|
|
local options="$3"
|
|
|
local fsType="$4"
|
|
|
|
|
|
if [ "$fsType" = auto ]; then
|
|
|
fsType=$(blkid -o value -s TYPE "$device")
|
|
|
if [ -z "$fsType" ]; then fsType=auto; fi
|
|
|
fi
|
|
|
|
|
|
# Filter out x- options, which busybox doesn't do yet.
|
|
|
local optionsFiltered="$(IFS=,; for i in $options; do if [ "${i:0:2}" != "x-" ]; then echo -n $i,; fi; done)"
|
|
|
# Prefix (lower|upper|work)dir with /mnt-root (overlayfs)
|
|
|
local optionsPrefixed="$( echo "$optionsFiltered" | sed -E 's#\<(lowerdir|upperdir|workdir)=#\1=/mnt-root#g' )"
|
|
|
|
|
|
echo "$device /mnt-root$mountPoint $fsType $optionsPrefixed" >> /etc/fstab
|
|
|
|
|
|
checkFS "$device" "$fsType"
|
|
|
|
|
|
# Optionally resize the filesystem.
|
|
|
case $options in
|
|
|
*x-nixos.autoresize*)
|
|
|
if [ "$fsType" = ext2 -o "$fsType" = ext3 -o "$fsType" = ext4 ]; then
|
|
|
modprobe "$fsType"
|
|
|
echo "resizing $device..."
|
|
|
e2fsck -fp "$device"
|
|
|
resize2fs "$device"
|
|
|
elif [ "$fsType" = f2fs ]; then
|
|
|
echo "resizing $device..."
|
|
|
fsck.f2fs -fp "$device"
|
|
|
resize.f2fs "$device"
|
|
|
fi
|
|
|
;;
|
|
|
esac
|
|
|
|
|
|
# Create backing directories for overlayfs
|
|
|
if [ "$fsType" = overlay ]; then
|
|
|
for i in upper work; do
|
|
|
dir="$( echo "$optionsPrefixed" | grep -o "${i}dir=[^,]*" )"
|
|
|
mkdir -m 0700 -p "${dir##*=}"
|
|
|
done
|
|
|
fi
|
|
|
|
|
|
info "mounting $device on $mountPoint..."
|
|
|
|
|
|
mkdir -p "/mnt-root$mountPoint"
|
|
|
|
|
|
# For ZFS and CIFS mounts, retry a few times before giving up.
|
|
|
# We do this for ZFS as a workaround for issue NixOS/nixpkgs#25383.
|
|
|
local n=0
|
|
|
while true; do
|
|
|
mount "/mnt-root$mountPoint" && break
|
|
|
if [ \( "$fsType" != cifs -a "$fsType" != zfs \) -o "$n" -ge 10 ]; then fail; break; fi
|
|
|
echo "retrying..."
|
|
|
sleep 1
|
|
|
n=$((n + 1))
|
|
|
done
|
|
|
|
|
|
[ "$mountPoint" == "/" ] &&
|
|
|
[ -f "/mnt-root/etc/NIXOS_LUSTRATE" ] &&
|
|
|
lustrateRoot "/mnt-root"
|
|
|
|
|
|
true
|
|
|
}
|
|
|
|
|
|
lustrateRoot () {
|
|
|
local root="$1"
|
|
|
|
|
|
echo
|
|
|
echo -e "\e[1;33m<<< NixOS is now lustrating the root filesystem (cruft goes to /old-root) >>>\e[0m"
|
|
|
echo
|
|
|
|
|
|
mkdir -m 0755 -p "$root/old-root.tmp"
|
|
|
|
|
|
echo
|
|
|
echo "Moving impurities out of the way:"
|
|
|
for d in "$root"/*
|
|
|
do
|
|
|
[ "$d" == "$root/nix" ] && continue
|
|
|
[ "$d" == "$root/boot" ] && continue # Don't render the system unbootable
|
|
|
[ "$d" == "$root/old-root.tmp" ] && continue
|
|
|
|
|
|
mv -v "$d" "$root/old-root.tmp"
|
|
|
done
|
|
|
|
|
|
# Use .tmp to make sure subsequent invokations don't clash
|
|
|
mv -v "$root/old-root.tmp" "$root/old-root"
|
|
|
|
|
|
mkdir -m 0755 -p "$root/etc"
|
|
|
touch "$root/etc/NIXOS"
|
|
|
|
|
|
exec 4< "$root/old-root/etc/NIXOS_LUSTRATE"
|
|
|
|
|
|
echo
|
|
|
echo "Restoring selected impurities:"
|
|
|
while read -u 4 keeper; do
|
|
|
dirname="$(dirname "$keeper")"
|
|
|
mkdir -m 0755 -p "$root/$dirname"
|
|
|
cp -av "$root/old-root/$keeper" "$root/$keeper"
|
|
|
done
|
|
|
|
|
|
exec 4>&-
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
if test -e /sys/power/resume -a -e /sys/power/disk; then
|
|
|
if test -n "@resumeDevice@" && waitDevice "@resumeDevice@"; then
|
|
|
resumeDev="@resumeDevice@"
|
|
|
resumeInfo="$(udevadm info -q property "$resumeDev" )"
|
|
|
else
|
|
|
for sd in @resumeDevices@; do
|
|
|
# Try to detect resume device. According to Ubuntu bug:
|
|
|
# https://bugs.launchpad.net/ubuntu/+source/pm-utils/+bug/923326/comments/1
|
|
|
# when there are multiple swap devices, we can't know where the hibernate
|
|
|
# image will reside. We can check all of them for swsuspend blkid.
|
|
|
if waitDevice "$sd"; then
|
|
|
resumeInfo="$(udevadm info -q property "$sd")"
|
|
|
if [ "$(echo "$resumeInfo" | sed -n 's/^ID_FS_TYPE=//p')" = "swsuspend" ]; then
|
|
|
resumeDev="$sd"
|
|
|
break
|
|
|
fi
|
|
|
fi
|
|
|
done
|
|
|
fi
|
|
|
if test -n "$resumeDev"; then
|
|
|
resumeMajor="$(echo "$resumeInfo" | sed -n 's/^MAJOR=//p')"
|
|
|
resumeMinor="$(echo "$resumeInfo" | sed -n 's/^MINOR=//p')"
|
|
|
echo "$resumeMajor:$resumeMinor" > /sys/power/resume 2> /dev/null || echo "failed to resume..."
|
|
|
fi
|
|
|
fi
|
|
|
|
|
|
# If we have a path to an iso file, find the iso and link it to /dev/root
|
|
|
if [ -n "$isoPath" ]; then
|
|
|
mkdir -p /findiso
|
|
|
|
|
|
for delay in 5 10; do
|
|
|
blkid | while read -r line; do
|
|
|
device=$(echo "$line" | sed 's/:.*//')
|
|
|
type=$(echo "$line" | sed 's/.*TYPE="\([^"]*\)".*/\1/')
|
|
|
|
|
|
mount -t "$type" "$device" /findiso
|
|
|
if [ -e "/findiso$isoPath" ]; then
|
|
|
ln -sf "/findiso$isoPath" /dev/root
|
|
|
break 2
|
|
|
else
|
|
|
umount /findiso
|
|
|
fi
|
|
|
done
|
|
|
|
|
|
sleep "$delay"
|
|
|
done
|
|
|
fi
|
|
|
|
|
|
# Try to find and mount the root device.
|
|
|
mkdir -p $targetRoot
|
|
|
|
|
|
exec 3< @fsInfo@
|
|
|
|
|
|
while read -u 3 mountPoint; do
|
|
|
read -u 3 device
|
|
|
read -u 3 fsType
|
|
|
read -u 3 options
|
|
|
|
|
|
# !!! Really quick hack to support bind mounts, i.e., where the
|
|
|
# "device" should be taken relative to /mnt-root, not /. Assume
|
|
|
# that every device that starts with / but doesn't start with /dev
|
|
|
# is a bind mount.
|
|
|
pseudoDevice=
|
|
|
case $device in
|
|
|
/dev/*)
|
|
|
;;
|
|
|
//*)
|
|
|
# Don't touch SMB/CIFS paths.
|
|
|
pseudoDevice=1
|
|
|
;;
|
|
|
/*)
|
|
|
device=/mnt-root$device
|
|
|
;;
|
|
|
*)
|
|
|
# Not an absolute path; assume that it's a pseudo-device
|
|
|
# like an NFS path (e.g. "server:/path").
|
|
|
pseudoDevice=1
|
|
|
;;
|
|
|
esac
|
|
|
|
|
|
if test -z "$pseudoDevice" && ! waitDevice "$device"; then
|
|
|
# If it doesn't appear, try to mount it anyway (and
|
|
|
# probably fail). This is a fallback for non-device "devices"
|
|
|
# that we don't properly recognise.
|
|
|
echo "Timed out waiting for device $device, trying to mount anyway."
|
|
|
fi
|
|
|
|
|
|
# Wait once more for the udev queue to empty, just in case it's
|
|
|
# doing something with $device right now.
|
|
|
udevadm settle
|
|
|
|
|
|
# If copytoram is enabled: skip mounting the ISO and copy its content to a tmpfs.
|
|
|
if [ -n "$copytoram" ] && [ "$device" = /dev/root ] && [ "$mountPoint" = /iso ]; then
|
|
|
fsType=$(blkid -o value -s TYPE "$device")
|
|
|
fsSize=$(blockdev --getsize64 "$device" || stat -Lc '%s' "$device")
|
|
|
|
|
|
mkdir -p /tmp-iso
|
|
|
mount -t "$fsType" /dev/root /tmp-iso
|
|
|
mountFS tmpfs /iso size="$fsSize" tmpfs
|
|
|
|
|
|
cp -r /tmp-iso/* /mnt-root/iso/
|
|
|
|
|
|
umount /tmp-iso
|
|
|
rmdir /tmp-iso
|
|
|
continue
|
|
|
fi
|
|
|
|
|
|
if [ "$mountPoint" = / ] && [ "$device" = tmpfs ] && [ ! -z "$persistence" ]; then
|
|
|
echo persistence...
|
|
|
waitDevice "$persistence"
|
|
|
echo enabling persistence...
|
|
|
mountFS "$persistence" "$mountPoint" "$persistence_opt" "auto"
|
|
|
continue
|
|
|
fi
|
|
|
|
|
|
mountFS "$device" "$mountPoint" "$options" "$fsType"
|
|
|
done
|
|
|
|
|
|
exec 3>&-
|
|
|
|
|
|
|
|
|
@postMountCommands@
|
|
|
|
|
|
|
|
|
# Emit a udev rule for /dev/root to prevent systemd from complaining.
|
|
|
if [ -e /mnt-root/iso ]; then
|
|
|
eval $(udevadm info --export --export-prefix=ROOT_ --device-id-of-file=/mnt-root/iso)
|
|
|
else
|
|
|
eval $(udevadm info --export --export-prefix=ROOT_ --device-id-of-file=$targetRoot)
|
|
|
fi
|
|
|
if [ "$ROOT_MAJOR" -a "$ROOT_MINOR" -a "$ROOT_MAJOR" != 0 ]; then
|
|
|
mkdir -p /run/udev/rules.d
|
|
|
echo 'ACTION=="add|change", SUBSYSTEM=="block", ENV{MAJOR}=="'$ROOT_MAJOR'", ENV{MINOR}=="'$ROOT_MINOR'", SYMLINK+="root"' > /run/udev/rules.d/61-dev-root-link.rules
|
|
|
fi
|
|
|
|
|
|
|
|
|
# Stop udevd.
|
|
|
udevadm control --exit
|
|
|
|
|
|
# Reset the logging file descriptors.
|
|
|
# Do this just before pkill, which will kill the tee process.
|
|
|
exec 1>&$logOutFd 2>&$logErrFd
|
|
|
eval "exec $logOutFd>&- $logErrFd>&-"
|
|
|
|
|
|
# Kill any remaining processes, just to be sure we're not taking any
|
|
|
# with us into stage 2. But keep storage daemons like unionfs-fuse.
|
|
|
#
|
|
|
# Storage daemons are distinguished by an @ in front of their command line:
|
|
|
# https://www.freedesktop.org/wiki/Software/systemd/RootStorageDaemons/
|
|
|
for pid in $(pgrep -v -f '^@'); do
|
|
|
# Make sure we don't kill kernel processes, see #15226 and:
|
|
|
# http://stackoverflow.com/questions/12213445/identifying-kernel-threads
|
|
|
readlink "/proc/$pid/exe" &> /dev/null || continue
|
|
|
# Try to avoid killing ourselves.
|
|
|
[ $pid -eq $$ ] && continue
|
|
|
kill -9 "$pid"
|
|
|
done
|
|
|
|
|
|
if test -n "$debug1mounts"; then fail; fi
|
|
|
|
|
|
|
|
|
# Restore /proc/sys/kernel/modprobe to its original value.
|
|
|
echo /sbin/modprobe > /proc/sys/kernel/modprobe
|
|
|
|
|
|
|
|
|
# Start stage 2. `switch_root' deletes all files in the ramfs on the
|
|
|
# current root. The path has to be valid in the chroot not outside.
|
|
|
if [ ! -e "$targetRoot/$stage2Init" ]; then
|
|
|
stage2Check=${stage2Init}
|
|
|
while [ "$stage2Check" != "${stage2Check%/*}" ] && [ ! -L "$targetRoot/$stage2Check" ]; do
|
|
|
stage2Check=${stage2Check%/*}
|
|
|
done
|
|
|
if [ ! -L "$targetRoot/$stage2Check" ]; then
|
|
|
echo "stage 2 init script ($targetRoot/$stage2Init) not found"
|
|
|
fail
|
|
|
fi
|
|
|
fi
|
|
|
|
|
|
mkdir -m 0755 -p $targetRoot/proc $targetRoot/sys $targetRoot/dev $targetRoot/run
|
|
|
|
|
|
mount --move /proc $targetRoot/proc
|
|
|
mount --move /sys $targetRoot/sys
|
|
|
mount --move /dev $targetRoot/dev
|
|
|
mount --move /run $targetRoot/run
|
|
|
|
|
|
exec env -i $(type -P switch_root) "$targetRoot" "$stage2Init"
|
|
|
|
|
|
fail # should never be reached
|
|
|
|
