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|
#!/bin/sh
. /etc/init/rc.conf
welcome() { printf '\033[1;36m->\033[m\033[1m Welcome to\033[35m Carbs Linux\033[m\033[1m!\n' ;}
mnt() {
mountpoint -q "$1" || {
dir=$1
shift
mount "$@" "$dir"
}
}
emergency_shell() {
error \
"Cannot continue init due to errors above, starting emergency shell" \
"When ready, type 'exit' to continue the boot."
/bin/sh -l
}
main() {
PATH=/usr/bin:/usr/sbin
old_ifs=$IFS
set -f
welcome
log "Mounting pseudo filesystems..."; {
mnt /proc -o nosuid,noexec,nodev -t proc proc
mnt /sys -o nosuid,noexec,nodev -t sysfs sys
mnt /run -o mode=0755,nosuid,nodev -t tmpfs run
mnt /dev -o mode=0755,nosuid -t devtmpfs dev
mkdir -pm 0755 /run/runit \
/run/lvm \
/run/user \
/run/lock \
/run/log \
/dev/pts \
/dev/shm
mnt /dev/pts -o mode=0620,gid=5,nosuid,noexec -nt devpts devpts
mnt /dev/shm -o mode=1777,nosuid,nodev -nt tmpfs shm
}
log "Setting dmesg level..."; {
[ -n "$dmesg_level" ] && dmesg -n$dmesg_level
}
log "Starting eudev..."; {
command -v udevd >/dev/null && {
udevd --daemon
udevadm trigger --action=add --type=subsystems
udevadm trigger --action=add --type=devices
udevadm settle
}
}
log "Remounting rootfs as ro..."; {
mount -o remount,ro / || emergency_shell
}
log "Activating encrypted devices (if any exist)..."; {
[ -e /etc/crypttab ] && [ -x /bin/cryptsetup ] && {
exec 3<&0
while read -r name dev pass opts err; do
[ "${name##\#*}" ] || continue
# Break on invalid crypttab.
[ "$err" ] && {
printf 'error: A valid crypttab has only 4 columns.\n'
break
}
# Turn 'UUID=*' lines into device names.
[ "${dev##UUID*}" ] || dev=$(blkid -l -o device -t "$dev")
# Parse options by turning list into a pseudo array.
IFS=,
set -- $opts
IFS=$old_ifs
copts="cryptsetup luksOpen"
# Create an argument list (no other way to do this in sh).
for opt; do case $opt in
discard) copts="$copts --allow-discards" ;;
readonly|read-only) copts="$copts -r" ;;
tries=*) copts="$copts -T ${opt##*=}" ;;
esac; done
# If password is 'none', '-' or empty ask for it.
case $pass in
none|-|"") $copts "$dev" "$name" <&3 ;;
*) $copts -d "$pass" "$dev" "$name" ;;
esac
done < /etc/crypttab
exec 3>&-
[ "$copts" ] && [ -x /bin/vgchance ] && {
log "Activating LVM devices for dm-crypt..."
vgchange --sysinit -a y || emergency_shell
}
}
}
log "Checking filesystems..."; {
fsck -ATat noopts=_netdev
[ $? -gt 1 ] && emergency_shell
}
log "Mounting rootfs rw..."; {
mount -o remount,rw / || emergency_shell
}
log "Mounting all local filesystems..."; {
mount -at nosysfs,nonfs,nonfs4,nosmbfs,nocifs -O no_netdev ||
emergency_shell
}
log "Enabling swap..."; {
swapon -a || emergency_shell
}
log "Seeding random..."; {
if [ -f /var/random.seed ]; then
cat /var/random.seed > /dev/urandom
else
log "This may hang."
log "Mash the keyboard to generate entropy..."
dd count=1 bs=512 if=/dev/random of=/var/random.seed
fi
}
log "Setting up loopback..."; {
ip link set up dev lo
}
log "Setting hostname..."; {
read -r hostname < /etc/hostname
printf '%s\n' "${hostname:-carbs-linux}" > /proc/sys/kernel/hostname
} 2>/dev/null
log "Getting keymap settings..."; {
[ -n "$keymap" ] && loadkmap < "$keymap"
}
log "Loading sysctl settings..."; {
find /run/sysctl.d \
/etc/sysctl.d \
/usr/local/lib/sysctl.d \
/usr/lib/sysctl.d \
/lib/sysctl.d \
/etc/sysctl.conf \
-name \*.conf -type f 2>/dev/null \
| while read -r conf; do
seen="$seen ${conf##*/}"
case $seen in
*" ${conf##*/} "*) ;;
*) printf '%s\n' "* Applying $conf ..."
sysctl -p "$conf" ;;
esac
done
}
command -v udevd >/dev/null &&
udevadm control --exit
log "Boot stage complete..."
}
main
|
