refactor
This commit is contained in:
illiliti
@@ -1,179 +0,0 @@
|
||||
.TH tinyramfs 5 "March 2020" tinyramfs
|
||||
|
||||
.SH NAME
|
||||
tinyramfs \- configuration options
|
||||
|
||||
.SH GENERAL
|
||||
.TP
|
||||
.BR \fBdebug=\fR"\&\fI {0|1} \fR\&"
|
||||
Enable shell debugging
|
||||
|
||||
This option also drop you to shell after root partition being mounted in initramfs
|
||||
.TP
|
||||
|
||||
.TP
|
||||
.BR \fBforce=\fR"\&\fI {0|1} \fR\&"
|
||||
Disable warning about exists initramfs image
|
||||
.TP
|
||||
|
||||
.TP
|
||||
.BR \fBinit=\fR"\&\fI /path/to/file \fR\&"
|
||||
Specify init program
|
||||
.TP
|
||||
|
||||
.TP
|
||||
.BR \fBinitramfs=\fR"\&\fI /path/to/file \fR\&"
|
||||
Specify initramfs output name
|
||||
.TP
|
||||
|
||||
.TP
|
||||
.BR \fBmonolith=\fR"\&\fI {0|1} \fR\&"
|
||||
Enable monolithic kernel support
|
||||
|
||||
This option required if you using monolithic kernel (builtin drivers)
|
||||
.TP
|
||||
|
||||
.TP
|
||||
.BR \fBmoddir=\fR"\&\fI /path/to/dir \fR\&"
|
||||
Specify directory of drivers
|
||||
.TP
|
||||
|
||||
.TP
|
||||
.BR \fBkernel=\fR"\&\fI ... \fR\&"
|
||||
Specify kernel version
|
||||
.TP
|
||||
|
||||
.TP
|
||||
.BR \fBcompress=\fR"\&\fI ... \fR\&"
|
||||
Specify compression program
|
||||
.TP
|
||||
|
||||
.TP
|
||||
.BR \fBroot=\fR"\&\fI ... \fR\&"
|
||||
Specify root partition [PARTUUID, UUID, LABEL, DEVICE]
|
||||
|
||||
This option is required
|
||||
.TP
|
||||
|
||||
.TP
|
||||
.BR \fBroot_type=\fR"\&\fI ... \fR\&"
|
||||
Specify root partition type
|
||||
.TP
|
||||
|
||||
.TP
|
||||
.BR \fBroot_opts=\fR"\&\fI ... \fR\&"
|
||||
Specify root partition mount options (comma separated)
|
||||
.TP
|
||||
|
||||
.TP
|
||||
.BR \fButil_linux=\fR"\&\fI {0|1} \fR\&"
|
||||
Include util-linux binaries
|
||||
|
||||
This option required if you need PARTUUID support
|
||||
.TP
|
||||
|
||||
.TP
|
||||
.BR \fBdevmgr=\fR"\&\fI ... \fR\&"
|
||||
Specify device manager [udev, mdev, mdevd]
|
||||
|
||||
This option is required
|
||||
.TP
|
||||
|
||||
.TP
|
||||
.BR \fBhostonly=\fR"\&\fI {0|1} \fR\&"
|
||||
Enable hostonly mode
|
||||
.TP
|
||||
|
||||
.TP
|
||||
.BR \fBdrivers=\fR"\&\fI ... \fR\&"
|
||||
Include additional drivers (space separated)
|
||||
|
||||
If host only mode enabled you need to specify your root partition driver
|
||||
.TP
|
||||
|
||||
.TP
|
||||
.BR \fBdrivers_exclude=\fR"\&\fI ... \fR\&"
|
||||
Exclude specified drivers (space separated)
|
||||
.TP
|
||||
|
||||
.TP
|
||||
.BR \fBbinaries=\fR"\&\fI ... \fR\&"
|
||||
Include additional binaries (space separated)
|
||||
.TP
|
||||
|
||||
.SH LVM
|
||||
|
||||
.TP
|
||||
.BR \fBlvm=\fR"\&\fI {0|1} \fR\&"
|
||||
Enable LVM support
|
||||
|
||||
This option required if you need LVM support
|
||||
.TP
|
||||
|
||||
.TP
|
||||
.BR \fBlvm_name=\fR"\&\fI ... \fR\&"
|
||||
Specify logical volume name
|
||||
.TP
|
||||
|
||||
.TP
|
||||
.BR \fBlvm_group=\fR"\&\fI ... \fR\&"
|
||||
Specify volume group name
|
||||
.TP
|
||||
|
||||
.TP
|
||||
.BR \fBlvm_config=\fR"\&\fI {0|1} \fR\&"
|
||||
Include config from /etc/lvm
|
||||
|
||||
This option overwrite lvm_discard option
|
||||
.TP
|
||||
|
||||
.TP
|
||||
.BR \fBlvm_discard=\fR"\&\fI {0|1} \fR\&"
|
||||
Enable TRIM requests
|
||||
.TP
|
||||
|
||||
.TP
|
||||
.BR \fBlvm_args=\fR"\&\fI ... \fR\&"
|
||||
Pass additional options to lvm
|
||||
.TP
|
||||
|
||||
.SH LUKS
|
||||
|
||||
.TP
|
||||
.BR \fBluks=\fR"\&\fI {0|1} \fR\&"
|
||||
Enable LUKS support
|
||||
|
||||
This option required if you need LUKS support
|
||||
.TP
|
||||
|
||||
.TP
|
||||
.BR \fBluks_root=\fR"\&\fI ... \fR\&"
|
||||
Specify encrypted root partition [PARTUUID, UUID, LABEL, DEVICE]
|
||||
|
||||
This option required if you need LUKS support
|
||||
.TP
|
||||
|
||||
.TP
|
||||
.BR \fBluks_name=\fR"\&\fI ... \fR\&"
|
||||
Specify device mapper name
|
||||
.TP
|
||||
|
||||
.TP
|
||||
.BR \fBluks_header=\fR"\&\fI /path/to/file \fR\&"
|
||||
Embed header into initramfs
|
||||
.TP
|
||||
|
||||
.TP
|
||||
.BR \fBluks_keyfile=\fR"\&\fI /path/to/file \fR\&"
|
||||
Embed key into initramfs
|
||||
.TP
|
||||
|
||||
.TP
|
||||
.BR \fBluks_discard=\fR"\&\fI {0|1} \fR\&"
|
||||
Enable TRIM requests
|
||||
.TP
|
||||
|
||||
.TP
|
||||
.BR \fBluks_args=\fR"\&\fI ... \fR\&"
|
||||
Pass additional options to cryptsetup
|
||||
.TP
|
||||
@@ -1,102 +0,0 @@
|
||||
.TH tinyramfs 7 "March 2020" tinyramfs
|
||||
|
||||
.SH NAME
|
||||
tinyramfs \- kernel command line options
|
||||
|
||||
.SH GENERAL
|
||||
|
||||
.TP
|
||||
.BR \fBdebug=\fR"\&\fI {0|1} \fR\&"
|
||||
Enable shell debugging
|
||||
|
||||
This option also drop you to shell after root partition being mounted
|
||||
.TP
|
||||
|
||||
.TP
|
||||
.BR \fBinit=\fR"\&\fI /path/to/file \fR\&"
|
||||
Specify init program
|
||||
.TP
|
||||
|
||||
.TP
|
||||
.BR \fBroot=\fR"\&\fI ... \fR\&"
|
||||
Specify root partition [PARTUUID, UUID, LABEL, DEVICE]
|
||||
.TP
|
||||
|
||||
.TP
|
||||
.BR \fBroot.type=\fR"\&\fI ... \fR\&"
|
||||
Specify root partition type
|
||||
.TP
|
||||
|
||||
.TP
|
||||
.BR \fBroot.opts=\fR"\&\fI ... \fR\&"
|
||||
Specify root partition mount options (comma separated)
|
||||
.TP
|
||||
|
||||
.SH LVM
|
||||
|
||||
.TP
|
||||
.BR \fBlvm=\fR"\&\fI {0|1} \fR\&"
|
||||
Enable LVM support
|
||||
.TP
|
||||
|
||||
.TP
|
||||
.BR \fBlvm.name=\fR"\&\fI ... \fR\&"
|
||||
Specify logical volume name
|
||||
.TP
|
||||
|
||||
.TP
|
||||
.BR \fBlvm.group=\fR"\&\fI ... \fR\&"
|
||||
Specify volume group name
|
||||
.TP
|
||||
|
||||
.TP
|
||||
.BR \fBlvm.config=\fR"\&\fI {0|1} \fR\&"
|
||||
Not implemented
|
||||
.TP
|
||||
|
||||
.TP
|
||||
.BR \fBlvm.discard=\fR"\&\fI {0|1} \fR\&"
|
||||
Not implemented
|
||||
.TP
|
||||
|
||||
.TP
|
||||
.BR \fBlvm.args=\fR"\&\fI ... \fR\&"
|
||||
Pass additional options to lvm
|
||||
.TP
|
||||
|
||||
.SH LUKS
|
||||
|
||||
.TP
|
||||
.BR \fBluks=\fR"\&\fI {0|1} \fR\&"
|
||||
Enable LUKS support
|
||||
.TP
|
||||
|
||||
.TP
|
||||
.BR \fBluks.root=\fR"\&\fI ... \fR\&"
|
||||
Specify encrypted root partition [PARTUUID, UUID, LABEL, DEVICE]
|
||||
.TP
|
||||
|
||||
.TP
|
||||
.BR \fBluks.name=\fR"\&\fI ... \fR\&"
|
||||
Specify device mapper name
|
||||
.TP
|
||||
|
||||
.TP
|
||||
.BR \fBluks.header=\fR"\&\fI /path/to/file \fR\&"
|
||||
Not implemented
|
||||
.TP
|
||||
|
||||
.TP
|
||||
.BR \fBluks.keyfile=\fR"\&\fI /path/to/file \fR\&"
|
||||
Not implemented
|
||||
.TP
|
||||
|
||||
.TP
|
||||
.BR \fBluks.discard=\fR"\&\fI {0|1} \fR\&"
|
||||
Enable TRIM requests
|
||||
.TP
|
||||
|
||||
.TP
|
||||
.BR \fBluks.args=\fR"\&\fI ... \fR\&"
|
||||
Pass additional options to cryptsetup
|
||||
.TP
|
||||
43
usr/share/tinyramfs/device-helper
Executable file
43
usr/share/tinyramfs/device-helper
Executable file
@@ -0,0 +1,43 @@
|
||||
#!/bin/sh -f
|
||||
#
|
||||
# create /dev/disk/by-* and /dev/mapper/* symlinks
|
||||
|
||||
create_symlink()
|
||||
{
|
||||
sym="$1"
|
||||
sym="${sym%\"}"
|
||||
sym="${sym#\"}"
|
||||
sym="${dir}${sym}"
|
||||
|
||||
mkdir -p "$dir" 2> /dev/null
|
||||
ln -s "/dev/${MDEV}" "$sym" 2> /dev/null
|
||||
}
|
||||
|
||||
# int main()
|
||||
{
|
||||
[ "$MDEV" ] || exit 1
|
||||
|
||||
for line in $(blkid "$MDEV"); do
|
||||
case "${line%%=*}" in
|
||||
UUID)
|
||||
dir="/dev/disk/by-uuid/"
|
||||
create_symlink "${line##*=}"
|
||||
;;
|
||||
LABEL)
|
||||
dir="/dev/disk/by-label/"
|
||||
create_symlink "${line##*=}"
|
||||
;;
|
||||
PARTUUID)
|
||||
dir="/dev/disk/by-partuuid/"
|
||||
create_symlink "${line##*=}"
|
||||
;;
|
||||
esac
|
||||
done
|
||||
|
||||
[ -e "/sys/block/${MDEV}/dm/name" ] &&
|
||||
{
|
||||
mkdir -p /dev/mapper 2> /dev/null
|
||||
read -r name < "/sys/block/${MDEV}/dm/name"
|
||||
ln -s "/dev/${MDEV}" "/dev/mapper/${name}" 2> /dev/null
|
||||
}
|
||||
}
|
||||
@@ -1,14 +0,0 @@
|
||||
root:x:0:
|
||||
tty:x:5:
|
||||
dialout:x:11:
|
||||
uucp:x:14:
|
||||
kmem:x:3:
|
||||
input:x:25:
|
||||
video:x:13:
|
||||
audio:x:12:
|
||||
lp:x:10:
|
||||
disk:x:9:
|
||||
cdrom:x:16:
|
||||
tape:x:6:
|
||||
kvm:x:24:
|
||||
floppy:x:8:
|
||||
282
usr/share/tinyramfs/init
Normal file → Executable file
282
usr/share/tinyramfs/init
Normal file → Executable file
@@ -1,168 +1,236 @@
|
||||
#!/sbin/busybox sh
|
||||
#!/bin/sh -ef
|
||||
#
|
||||
# tiny init script
|
||||
# tiny init
|
||||
|
||||
panic() {
|
||||
panic()
|
||||
{
|
||||
printf "panic >> %s\n" "$1"
|
||||
|
||||
# TODO fix job control
|
||||
sh
|
||||
# see https://busybox.net/FAQ.html#job_control
|
||||
setsid sh -c "exec sh <> /dev/${console:-console} 2>&1" || sh
|
||||
}
|
||||
|
||||
parse_cmdline() {
|
||||
read -r cmdline < /proc/cmdline
|
||||
set -f && set +f -- $cmdline
|
||||
findfs()
|
||||
{
|
||||
value=0; device=
|
||||
|
||||
for line in "$@"; do
|
||||
value="${line##*=}"
|
||||
case "${1%%=*}" in
|
||||
/dev/*)
|
||||
device="$1"
|
||||
;;
|
||||
UUID)
|
||||
device="/dev/disk/by-uuid/${1##*=}"
|
||||
;;
|
||||
LABEL)
|
||||
device="/dev/disk/by-label/${1##*=}"
|
||||
;;
|
||||
PARTUUID)
|
||||
device="/dev/disk/by-partuuid/${1##*=}"
|
||||
;;
|
||||
esac
|
||||
|
||||
case "${line%%=*}" in
|
||||
debug) debug="$value" ;;
|
||||
init) init="$value" ;;
|
||||
root) root="$value" ;;
|
||||
root.type) root_type="$value" ;;
|
||||
root.opts) root_opts="$value" ;;
|
||||
lvm) lvm="$value" ;;
|
||||
lvm.name) lvm_name="$value" ;;
|
||||
lvm.group) lvm_group="$value" ;;
|
||||
lvm.args) lvm_args="$value" ;;
|
||||
luks) luks="$value" ;;
|
||||
luks.root) luks_root="$value" ;;
|
||||
luks.name) luks_name="$value" ;;
|
||||
luks.discard) luks_discard="$value" ;;
|
||||
luks.args) luks_args="$value" ;;
|
||||
# TODO implement
|
||||
#lvm.discard) ;;
|
||||
#lvm.config) ;;
|
||||
#luks.header) ;;
|
||||
#luks.keyfile) ;;
|
||||
esac
|
||||
# avoid race condition
|
||||
while [ ! -e "$device" ]; do
|
||||
value=$(( value + 1 ))
|
||||
[ "$value" = 15 ] && panic "failed to lookup partition"
|
||||
sleep 1
|
||||
done
|
||||
}
|
||||
|
||||
prepare_environment() {
|
||||
/sbin/busybox --install -s
|
||||
prepare_environment()
|
||||
{
|
||||
. /etc/config
|
||||
|
||||
. /config || panic "failed to source config"
|
||||
export \
|
||||
SHELL=/bin/sh \
|
||||
TERM=linux \
|
||||
HOME=/root \
|
||||
PATH=/bin:/sbin:/usr/bin:/usr/sbin \
|
||||
PS1="# " \
|
||||
LC_ALL=C \
|
||||
LANG=C \
|
||||
OLD_IFS="$IFS"
|
||||
|
||||
# fix for ubase mount
|
||||
:> /etc/fstab
|
||||
|
||||
mount -t proc -o nosuid,noexec,nodev proc /proc
|
||||
mount -t sysfs -o nosuid,noexec,nodev sys /sys
|
||||
mount -t tmpfs -o mode=0755,nosuid,nodev run /run
|
||||
mount -t devtmpfs -o mode=0755,noexec,nosuid dev /dev
|
||||
|
||||
mkdir -pm 0755 /run/cryptsetup /run/lvm /dev/pts /dev/shm
|
||||
|
||||
mount -t devpts -o gid=5,mode=620,noexec,nosuid devpts /dev/pts
|
||||
mount -t tmpfs -o mode=1777,noexec,nosuid,nodev shm /dev/shm
|
||||
mount -t devtmpfs -o nosuid,noexec,mode=0755 dev /dev
|
||||
|
||||
ln -s /proc/self/fd /dev/fd
|
||||
ln -s /proc/self/fd/0 /dev/stdin
|
||||
ln -s /proc/self/fd/1 /dev/stdout
|
||||
ln -s /proc/self/fd/2 /dev/stderr
|
||||
|
||||
trap 'panic "something went wrong"' EXIT
|
||||
}
|
||||
|
||||
setup_devmgr() {
|
||||
parse_cmdline()
|
||||
{
|
||||
[ "$break" = cmdline ] && panic "break before parse cmdline"
|
||||
|
||||
read -r cmdline < /proc/cmdline
|
||||
|
||||
for line in $cmdline; do
|
||||
case "$line" in
|
||||
debug | debug=1)
|
||||
set -x
|
||||
;;
|
||||
*.*)
|
||||
# TODO implement backward compatibilty with dracut, mkinitcpio, etc
|
||||
: no operation
|
||||
;;
|
||||
*=*)
|
||||
export "$line"
|
||||
;;
|
||||
*)
|
||||
export "${line}=1"
|
||||
;;
|
||||
esac
|
||||
done
|
||||
}
|
||||
|
||||
setup_devmgr()
|
||||
{
|
||||
[ "$break" = devmgr ] && panic "break before setup device manager"
|
||||
|
||||
case "$devmgr" in
|
||||
udev)
|
||||
udevd -d -N never
|
||||
udevadm trigger -c add -t subsystems
|
||||
udevadm trigger -c add -t devices
|
||||
udevadm settle
|
||||
;;
|
||||
;;
|
||||
mdev)
|
||||
mdev -df &
|
||||
mdev -df 2> /dev/null & mdev_pid="$!"
|
||||
|
||||
find /sys -name modalias -type f -exec sort -u {} + |
|
||||
xargs modprobe -ba
|
||||
;;
|
||||
[ "$monolith" != 1 ] &&
|
||||
{
|
||||
set -- $(find /sys -name modalias -type f -exec sort -u {} +)
|
||||
modprobe -a "$@" 2> /dev/null
|
||||
}
|
||||
;;
|
||||
mdevd)
|
||||
mdevd &
|
||||
mdevd 2> /dev/null & mdevd_pid="$!"
|
||||
mdevd-coldplug
|
||||
;;
|
||||
;;
|
||||
esac
|
||||
}
|
||||
|
||||
findfs_sh() {
|
||||
value="${1##*=}"
|
||||
unlock_luks()
|
||||
{
|
||||
[ "$break" = luks ] && panic "break before unlock LUKS"
|
||||
|
||||
case "${1%%=*}" in
|
||||
LABEL) device="/dev/disk/by-label/${value}" ;;
|
||||
UUID) device="/dev/disk/by-uuid/${value}" ;;
|
||||
PARTUUID) device="/dev/disk/by-partuuid/${value}" ;;
|
||||
/dev/*) device="$1" ;;
|
||||
esac
|
||||
{ IFS=,; set -- $luks_opts; IFS="$OLD_IFS"; }
|
||||
|
||||
# avoid race condition
|
||||
while [ ! -e "$device" ]; do
|
||||
sleep 0.5
|
||||
[ "$increment" ] || increment=0
|
||||
increment=$(( increment + 1 ))
|
||||
[ "$increment" = 10 ] && panic "failed to lookup partition"
|
||||
for opt; do
|
||||
case "$opt" in
|
||||
discard | discard=1)
|
||||
luks_discard="--allow-discards"
|
||||
;;
|
||||
header=*)
|
||||
luks_header="--${opt}"
|
||||
;;
|
||||
name=*)
|
||||
luks_name="${opt##*=}"
|
||||
;;
|
||||
key=*)
|
||||
luks_key="-d ${opt##*=}"
|
||||
;;
|
||||
esac
|
||||
done
|
||||
|
||||
printf "%s\n" "$device"
|
||||
findfs "$luks_root"
|
||||
|
||||
set -- "--disable-locks" "$luks_key" "$luks_discard" "$luks_header" "$device" "${luks_name:-luks-${device##*/}}"
|
||||
cryptsetup open $@ || panic "failed to unlock LUKS"
|
||||
}
|
||||
|
||||
unlock_luks() {
|
||||
[ "$luks_discard" = 1 ] && luks_args="--allow-discards $luks_args"
|
||||
[ -f /root/luks_header ] && luks_args="--header=/root/luks_header $luks_args"
|
||||
[ -f /root/luks_keyfile ] && luks_args="--key-file=/root/luks_keyfile $luks_args"
|
||||
trigger_lvm()
|
||||
{
|
||||
[ "$break" = lvm ] && panic "break before trigger LVM"
|
||||
|
||||
cryptsetup $luks_args \
|
||||
luksOpen \
|
||||
$(findfs_sh "$luks_root") \
|
||||
${luks_name:-luks_root} ||
|
||||
panic "failed to unlock luks container"
|
||||
}
|
||||
{ IFS=,; set -- $lvm_opts; IFS="$OLD_IFS"; }
|
||||
|
||||
for opt; do
|
||||
case "$opt" in
|
||||
discard | discard=1)
|
||||
lvm_discard="--config=devices{issue_discards=1}"
|
||||
;;
|
||||
config=0)
|
||||
:> /etc/lvm/lvm.conf
|
||||
;;
|
||||
group=*)
|
||||
lvm_group="${opt##*=}"
|
||||
;;
|
||||
name=*)
|
||||
lvm_name="/${opt##*=}"
|
||||
;;
|
||||
tag=*)
|
||||
lvm_tag="@${opt##*=}"
|
||||
;;
|
||||
esac
|
||||
done
|
||||
|
||||
set -- "--sysinit" "-qq" "-ay" "$lvm_discard"
|
||||
|
||||
trigger_lvm() {
|
||||
if [ "$lvm_group" ] && [ "$lvm_name" ]; then
|
||||
lvm lvchange $lvm_args --sysinit -q -a y "${lvm_group}/${lvm_name}" > /dev/null
|
||||
lvchange $@ "${lvm_group}${lvm_name}"
|
||||
elif [ "$lvm_group" ]; then
|
||||
lvm vgchange $lvm_args --sysinit -q -a y "$lvm_group" > /dev/null
|
||||
vgchange $@ "$lvm_group"
|
||||
elif [ "$lvm_tag" ]; then
|
||||
lvchange $@ "$lvm_tag"
|
||||
else
|
||||
lvm vgchange $lvm_args --sysinit -q -a y > /dev/null
|
||||
vgchange $@
|
||||
fi
|
||||
}
|
||||
|
||||
mount_rootfs() {
|
||||
mount ${root_type:+-t $root_type} \
|
||||
${root_opts:+-o $root_opts} \
|
||||
$(findfs_sh "$root") \
|
||||
/mnt/root ||
|
||||
panic "failed to mount rootfs"
|
||||
mount_root()
|
||||
{
|
||||
[ "$break" = root ] && panic "break before mount root"
|
||||
|
||||
findfs "$root"
|
||||
|
||||
set -- "${root_type:+-t $root_type}" "${root_opts:+-o $root_opts}" "$device" "/mnt/root"
|
||||
mount $@ || panic "failed to mount root"
|
||||
}
|
||||
|
||||
cleanup() {
|
||||
cleanup()
|
||||
{
|
||||
[ "$break" = cleanup ] && panic "break before cleanup"
|
||||
|
||||
case "$devmgr" in
|
||||
udev) udevadm control -e ;;
|
||||
mdev) killall mdev ;;
|
||||
mdevd) killall mdevd ;;
|
||||
mdev) kill "$mdev_pid" ;;
|
||||
mdevd) kill "$mdevd_pid" ;;
|
||||
esac
|
||||
|
||||
umount /dev /sys /proc
|
||||
# temporary workaround until util-linux mount implements 'mount -o move'
|
||||
# see https://github.com/karelzak/util-linux/issues/997
|
||||
for dir in dev sys proc; do
|
||||
mount -o move "$dir" "/mnt/root/${dir}" || mount --move "$dir" "/mnt/root/${dir}"
|
||||
done
|
||||
}
|
||||
|
||||
boot_system() {
|
||||
exec switch_root \
|
||||
/mnt/root \
|
||||
${init:-/sbin/init} ||
|
||||
panic "failed to boot system"
|
||||
boot_system()
|
||||
{
|
||||
[ "$break" = boot ] && panic "break before boot system"
|
||||
|
||||
set -- "/mnt/root" "${init:-/sbin/init}"
|
||||
exec switch_root $@ 2> /dev/null || panic "failed to boot system"
|
||||
}
|
||||
|
||||
prepare_environment
|
||||
parse_cmdline
|
||||
[ "$debug" = 1 ] && set -x
|
||||
setup_devmgr
|
||||
# int main()
|
||||
{
|
||||
prepare_environment
|
||||
parse_cmdline
|
||||
setup_devmgr
|
||||
|
||||
# TODO handle situations when LUKS on LVM
|
||||
[ "$luks" = 1 ] &&
|
||||
command -v cryptsetup > /dev/null 2>&1 && unlock_luks
|
||||
[ "$luks" = 1 ] && unlock_luks
|
||||
[ "$lvm" = 1 ] && trigger_lvm
|
||||
|
||||
[ "$lvm" = 1 ] &&
|
||||
command -v lvm > /dev/null 2>&1 && trigger_lvm
|
||||
|
||||
mount_rootfs
|
||||
[ "$debug" = 1 ] && panic "dropping to shell"
|
||||
cleanup
|
||||
boot_system
|
||||
mount_root
|
||||
cleanup
|
||||
boot_system
|
||||
}
|
||||
|
||||
@@ -1,96 +0,0 @@
|
||||
# Copyright (c) 2012-2019, Piotr Karbowski <piotr.karbowski@gmail.com>
|
||||
# All rights reserved.
|
||||
#
|
||||
# Redistribution and use in source and binary forms, with or without modification, are
|
||||
# permitted provided that the following conditions are met:
|
||||
#
|
||||
# * Redistributions of source code must retain the above copyright notice, this list
|
||||
# of conditions and the following disclaimer.
|
||||
# * Redistributions in binary form must reproduce the above copyright notice, this list
|
||||
# of conditions and the following disclaimer in the documentation and/or other
|
||||
# materials provided with the distribution.
|
||||
# * Neither the name of the Piotr Karbowski nor the names of its contributors may be
|
||||
# used to endorse or promote products derived from this software without specific
|
||||
# prior written permission.
|
||||
#
|
||||
# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY
|
||||
# EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
|
||||
# MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL
|
||||
# THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
|
||||
# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT
|
||||
# OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
|
||||
# INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
|
||||
# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE US
|
||||
# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
|
||||
|
||||
# mdev-like-a-boss
|
||||
|
||||
# Syntax:
|
||||
# [-]devicename_regex user:group mode [=path]|[>path]|[!] [@|$|*cmd args...]
|
||||
# [-]$ENVVAR=regex user:group mode [=path]|[>path]|[!] [@|$|*cmd args...]
|
||||
# [-]@maj,min[-min2] user:group mode [=path]|[>path]|[!] [@|$|*cmd args...]
|
||||
#
|
||||
# [-]: do not stop on this match, continue reading mdev.conf
|
||||
# =: move, >: move and create a symlink
|
||||
# !: do not create device node
|
||||
# @|$|*: run cmd if $ACTION=remove, @cmd if $ACTION=add, *cmd in all cases
|
||||
|
||||
# support module loading on hotplug
|
||||
$MODALIAS=.* 0:0 660 @modprobe -b "$MODALIAS"
|
||||
|
||||
# null may already exist; therefore ownership has to be changed with command
|
||||
null 0:0 666 @chmod 666 $MDEV
|
||||
zero 0:0 666
|
||||
full 0:0 666
|
||||
random 0:0 444
|
||||
urandom 0:0 444
|
||||
hwrandom 0:0 444
|
||||
grsec 0:0 660
|
||||
kmem 0:0 640
|
||||
mem 0:0 640
|
||||
port 0:0 640
|
||||
# console may already exist; therefore ownership has to be changed with command
|
||||
console 0:5 600 @chmod 600 $MDEV
|
||||
ptmx 0:5 666
|
||||
pty.* 0:5 660
|
||||
|
||||
# typical devices
|
||||
tty 0:5 666
|
||||
tty[0-9]* 0:5 660
|
||||
vcsa*[0-9]* 0:5 660
|
||||
ttyS[0-9]* 0:14 660
|
||||
|
||||
# block devices
|
||||
ram([0-9]*) 0:9 660 >rd/%1
|
||||
loop([0-9]+) 0:9 660 >loop/%1
|
||||
sr[0-9]* 0:16 660 @ln -sf $MDEV cdrom
|
||||
fd[0-9]* 0:8 660
|
||||
SUBSYSTEM=block;.* 0:9 660 */lib/mdev/storage-device
|
||||
|
||||
# raid controllers
|
||||
cciss!(.*) 0:9 660 =cciss/%1
|
||||
ida!(.*) 0:9 660 =ida/%1
|
||||
rd!(.*) 0:9 660 =rd/%1
|
||||
|
||||
# graphics
|
||||
card[0-9] 0:13 660 =dri/
|
||||
agpgart 0:0 660 >misc/
|
||||
psaux 0:0 660 >misc/
|
||||
rtc 0:0 664 >misc/
|
||||
|
||||
# input stuff
|
||||
SUBSYSTEM=input;.* 0:25 660
|
||||
|
||||
# drm etc
|
||||
dri/.* 0:13 660
|
||||
|
||||
# don't create old usbdev* devices.
|
||||
usbdev[0-9].[0-9]* 0:0 660 !
|
||||
|
||||
# stop creating x:x:x:x which looks like /dev/dm-*
|
||||
[0-9]+\:[0-9]+\:[0-9]+\:[0-9]+ 0:0 660 !
|
||||
|
||||
# /dev/cpu support.
|
||||
microcode 0:0 600 =cpu/
|
||||
cpu([0-9]+) 0:0 600 =cpu/%1/cpuid
|
||||
msr([0-9]+) 0:0 600 =cpu/%1/msr
|
||||
@@ -1,2 +0,0 @@
|
||||
root:x:0:0::/root:/bin/sh
|
||||
nobody:x:99:99::/:/bin/false
|
||||
@@ -1,133 +0,0 @@
|
||||
#!/bin/sh
|
||||
# Copyright (c) 2012-2019, Piotr Karbowski <piotr.karbowski@gmail.com>
|
||||
# All rights reserved.
|
||||
#
|
||||
# Redistribution and use in source and binary forms, with or without modification, are
|
||||
# permitted provided that the following conditions are met:
|
||||
#
|
||||
# * Redistributions of source code must retain the above copyright notice, this list
|
||||
# of conditions and the following disclaimer.
|
||||
# * Redistributions in binary form must reproduce the above copyright notice, this list
|
||||
# of conditions and the following disclaimer in the documentation and/or other
|
||||
# materials provided with the distribution.
|
||||
# * Neither the name of the Piotr Karbowski nor the names of its contributors may be
|
||||
# used to endorse or promote products derived from this software without specific
|
||||
# prior written permission.
|
||||
#
|
||||
# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY
|
||||
# EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
|
||||
# MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL
|
||||
# THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
|
||||
# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT
|
||||
# OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
|
||||
# INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
|
||||
# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE US
|
||||
# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
|
||||
|
||||
# This script meant to create /dev/disk/by-* and /dev/mapper/* symlinks.
|
||||
# and remove them after storage device is removed.
|
||||
# the /dev/disk/by-* handling based on the idea and proof of concept from BitJam.
|
||||
|
||||
# debug
|
||||
#exec >> /run/debug-mdev 2>&1
|
||||
#set -x
|
||||
#echo '### ENV:'
|
||||
#env
|
||||
#echo '### CODE:'
|
||||
#
|
||||
|
||||
umask 077
|
||||
|
||||
storage_dir="/tmp/.mdev-like-a-boss"
|
||||
[ -d "$storage_dir" ] || mkdir "$storage_dir"
|
||||
|
||||
[ "$MDEV" ] || exit 2
|
||||
|
||||
create_uuid_label_symlink() {
|
||||
target_dir="/dev/disk/by-${1}"
|
||||
target_symlink="${target_dir}/${2}"
|
||||
[ -e "$target_symlink" ] && return
|
||||
mkdir -p "$target_dir"
|
||||
ln -sf "/dev/${MDEV}" "$target_symlink"
|
||||
printf "%s\n" "$target_symlink" > "${storage_dir}/storage_symlink_${1}_${MDEV}"
|
||||
}
|
||||
|
||||
add_symlinks() {
|
||||
# Skip temp cryptsetup nodes.
|
||||
case "$MDEV" in
|
||||
dm-[0-9]*)
|
||||
case $(cat "/sys/block/${MDEV}/dm/name") in
|
||||
temporary-cryptsetup-[0-9]*)
|
||||
return 0
|
||||
;;
|
||||
esac
|
||||
;;
|
||||
esac
|
||||
|
||||
if command -v blkid > /dev/null 2>&1; then
|
||||
blkid_output=$(blkid "/dev/${MDEV}")
|
||||
eval "${blkid_output#*: }"
|
||||
|
||||
[ "$UUID" ] && create_uuid_label_symlink uuid "$UUID"
|
||||
[ "$LABEL" ] && create_uuid_label_symlink label "$LABEL"
|
||||
[ "$PARTUUID" ] && create_uuid_label_symlink partuuid "$PARTUUID"
|
||||
fi
|
||||
|
||||
if [ -f "/sys/block/${MDEV}/dm/name" ]; then
|
||||
[ -d /dev/mapper ] || mkdir /dev/mapper
|
||||
if ! [ -c /dev/mapper/control ]; then
|
||||
while read -r dm; do
|
||||
[ "${dm#* }" = device-mapper ] && {
|
||||
mknod /dev/mapper/control c 10 "${dm% *}" || exit 1
|
||||
break
|
||||
}
|
||||
done < /proc/misc
|
||||
fi
|
||||
|
||||
dmname=$(cat "/sys/block/${MDEV}/dm/name")
|
||||
if [ "$dmname" ]; then
|
||||
target_symlink="/dev/mapper/${dmname}"
|
||||
[ -e "$target_symlink" ] && return
|
||||
ln -sf "/dev/${MDEV}" "$target_symlink"
|
||||
printf "%s\n" "$target_symlink" > "${storage_dir}/storage_symlink_mapper_${MDEV}"
|
||||
fi
|
||||
fi
|
||||
}
|
||||
|
||||
set_readahead() {
|
||||
read_ahead_kb_control="/sys/class/block/${MDEV}/queue/read_ahead_kb"
|
||||
new_read_ahead_kb="2048"
|
||||
|
||||
if [ -f "$read_ahead_kb_control" ]; then
|
||||
read_ahead_kb=$(cat "$read_ahead_kb_control")
|
||||
if [ "$read_ahead_kb" -lt "$new_read_ahead_kb" ]; then
|
||||
logger -t mdev "Changing $MDEV read_ahead_kb from $read_ahead_kb to $new_read_ahead_kb"
|
||||
printf "%s" "$new_read_ahead_kb" > "$read_ahead_kb_control"
|
||||
fi
|
||||
fi
|
||||
}
|
||||
|
||||
drop_symlinks() {
|
||||
for type in uuid label mapper; do
|
||||
[ -f "${storage_dir}/storage_symlink_${type}_${MDEV}" ] || continue
|
||||
target_symlink=$(cat "${storage_dir}/storage_symlink_${type}_${MDEV}" 2> /dev/null)
|
||||
[ "$target_symlink" ] || continue
|
||||
|
||||
target_symlink_device=$(readlink "$target_symlink")
|
||||
if [ "$target_symlink_device" = "/dev/${MDEV}" ]; then
|
||||
rm "$target_symlink"
|
||||
fi
|
||||
|
||||
rm "${storage_dir}/storage_symlink_${type}_${MDEV}"
|
||||
done
|
||||
}
|
||||
|
||||
case "$ACTION" in
|
||||
add | "")
|
||||
add_symlinks
|
||||
set_readahead
|
||||
;;
|
||||
remove)
|
||||
drop_symlinks
|
||||
;;
|
||||
esac
|
||||
Reference in New Issue
Block a user