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