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small rework

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This commit is contained in:
illiliti 2020-02-25 22:43:25 +03:00
parent d1d2ae88bd
commit ebc9b82c64
1 changed files with 69 additions and 80 deletions
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149
files/init
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@ -14,23 +14,23 @@ parse_cmdline() {
set -- $(cat /proc/cmdline) set -- $(cat /proc/cmdline)
for line in "$@"; do for line in "$@"; do
value="${line##*=}"
# parse options
case "${line%%=*}" in case "${line%%=*}" in
debug) debug="${line##*=}" ;; debug) debug="$value" ;;
init) init="${line##*=}" ;; init) init="$value" ;;
root) root="${line##*=}" ;; root) root="$value" ;;
root.type) root_type="${line##*=}" ;; root.type) root_type="$value" ;;
root.opts) root_opts="${line##*=}" ;; root.opts) root_opts="$value" ;;
lvm) lvm="${line##*=}" ;; lvm) lvm="$value" ;;
lvm.name) lvm_name="${line##*=}" ;; lvm.name) lvm_name="$value" ;;
lvm.group) lvm_group="${line##*=}" ;; lvm.group) lvm_group="$value" ;;
lvm.args) lvm_args="${line##*=}" ;; lvm.args) lvm_args="$value" ;;
luks) luks="${line##*=}" ;; luks) luks="$value" ;;
luks.root) luks_root="${line##*=}" ;; luks.root) luks_root="$value" ;;
luks.name) luks_name="${line##*=}" ;; luks.name) luks_name="$value" ;;
luks.discard) luks_discard="${line##*=}" ;; luks.discard) luks_discard="$value" ;;
luks.args) luks_args="${line##*=}" ;; luks.args) luks_args="$value" ;;
# TODO implement # TODO implement
#lvm.discard) ;; #lvm.discard) ;;
#lvm.conf) ;; #lvm.conf) ;;
@ -40,58 +40,52 @@ parse_cmdline() {
done done
} }
mnt_pseudofs() { mount_pseudofs() {
mount -t proc none /proc mount -t proc none /proc
mount -t sysfs none /sys mount -t sysfs none /sys
mount -t devtmpfs none /dev mount -t devtmpfs none /dev
mount -t tmpfs none /tmp
} }
setup_mdev() { setup_devmgr() {
# setup hotplugger case "$devmgr" in
if [ -e /proc/sys/kernel/hotplug ]; then udev)
printf /sbin/mdev > /proc/sys/kernel/hotplug udevd -d
else udevadm trigger -c add -t subsystems
uevent mdev & udevadm trigger -c add -t devices
fi udevadm settle
;;
mdev)
uevent mdev &
mdev -s
# trigger mdev for device in /sys/bus/usb/devices/*; do
mdev -s case "${device##*/}" in [0-9]*-[0-9]*)
printf add > "${device}/uevent" ;;
esac
done
# trigger uevent for usb devices find /sys -name modalias -type f -exec sort -u {} + |
for device in /sys/bus/usb/devices/*; do xargs modprobe -b > /dev/null 2>&1
case "${device##*/}" in ;;
[0-9]*-[0-9]*) printf add > "${device}/uevent" ;; mdevd)
esac mdevd &
done mdevd-coldplug
;;
# load drivers *)
find /sys -name modalias -type f -exec sort -u {} + | panic "devmgr option broken"
xargs modprobe -qba ;;
} esac
setup_mdevd() {
# setup daemon
mdevd &
# trigger uevents
mdevd-coldplug
}
setup_udev() {
udevd --daemon
udevadm trigger --action=add --type=subsystems
udevadm trigger --action=add --type=devices
udevadm settle
} }
findfs_sh() { findfs_sh() {
value="${1##*=}"
case "${1%%=*}" in case "${1%%=*}" in
LABEL) device="/dev/disk/by-label/${1##*=}" ;; LABEL) device="/dev/disk/by-label/${value}" ;;
UUID) device="/dev/disk/by-uuid/${1##*=}" ;; UUID) device="/dev/disk/by-uuid/${value}" ;;
PARTUUID) device="/dev/disk/by-partuuid/${1##*=}" ;; PARTUUID) device="/dev/disk/by-partuuid/${value}" ;;
/dev/*) device="$1" ;; /dev/*) device="$1" ;;
*) panic "findfs option broken" ;; *) panic "findfs option broken" ;;
esac esac
# avoid race condition # avoid race condition
@ -116,28 +110,28 @@ unlock_luks() {
trigger_lvm() { trigger_lvm() {
if [ "$lvm_group" ] && [ "$lvm_name" ]; then if [ "$lvm_group" ] && [ "$lvm_name" ]; then
lvm lvchange $lvm_args --quiet --sysinit -a y "${lvm_group}/${lvm_name}" > /dev/null lvm lvchange $lvm_args --sysinit -q -a y "${lvm_group}/${lvm_name}" > /dev/null
elif [ "$lvm_group" ]; then elif [ "$lvm_group" ]; then
lvm vgchange $lvm_args --quiet --sysinit -a y "$lvm_group" > /dev/null lvm vgchange $lvm_args --sysinit -q -a y "$lvm_group" > /dev/null
else else
lvm vgchange $lvm_args --quiet --sysinit -a y > /dev/null lvm vgchange $lvm_args --sysinit -q -a y > /dev/null
fi fi
} }
mnt_rootfs() { mount_rootfs() {
mount ${root_type:+-t $root_type} ${root_opts:+-o $root_opts} $(findfs_sh "$root") /mnt/root || mount ${root_type:+-t $root_type} ${root_opts:+-o $root_opts} $(findfs_sh "$root") /mnt/root ||
panic "failed to mount rootfs" panic "failed to mount rootfs"
} }
cleanup() { cleanup() {
case "$devmgr" in case "$devmgr" in
mdev) { printf "" > /proc/sys/kernel/hotplug || killall uevent; } > /dev/null 2>&1 ;; udev) udevadm control -e ;;
mdevd) killall mdevd ;; mdev) killall uevent ;;
udev) udevadm control --exit ;; mdevd) killall mdevd ;;
esac esac
# unmount pseudofs's # unmount pseudofs's
umount /dev /sys /proc /tmp umount /dev /sys /proc
} }
boot_system() { boot_system() {
@ -150,29 +144,24 @@ boot_system() {
. /config || . /config ||
panic "failed to source config" panic "failed to source config"
mnt_pseudofs mount_pseudofs
parse_cmdline parse_cmdline
# debug mode
[ "$debug" = 1 ] && set -x [ "$debug" = 1 ] && set -x
case "$devmgr" in setup_devmgr
mdev) setup_mdev ;;
mdevd) setup_mdevd ;;
udev) setup_udev ;;
*) panic "devmgr option broken" ;;
esac
# TODO handle situations when LUKS on LVM # TODO handle situations when LUKS on LVM
[ "$luks" = 1 ] && [ "$luks" = 1 ] && command -v cryptsetup > /dev/null 2>&1 &&
command -v cryptsetup > /dev/null 2>&1 && unlock_luks
unlock_luks
[ "$lvm" = 1 ] && [ "$lvm" = 1 ] && command -v lvm > /dev/null 2>&1 &&
command -v lvm > /dev/null 2>&1 && trigger_lvm
trigger_lvm
mount_rootfs
[ "$debug" = 1 ] &&
panic "dropping to shell"
mnt_rootfs
[ "$debug" = 1 ] && panic "dropping to shell"
cleanup cleanup
boot_system boot_system