diff options
Diffstat (limited to 'core/runit/runit-1')
| -rw-r--r-- | core/runit/runit-1 | 172 |
1 files changed, 172 insertions, 0 deletions
diff --git a/core/runit/runit-1 b/core/runit/runit-1 new file mode 100644 index 0000000..bff256b --- /dev/null +++ b/core/runit/runit-1 @@ -0,0 +1,172 @@ +#!/bin/sh +# /etc/runit/1 - rawnix system boot + +PATH=/sbin:/bin:/usr/sbin:/usr/bin +export PATH + +msg() { + printf '\033[1m%s\033[0m\n' "$1" +} + +err() { + printf '\033[1;31m%s\033[0m\n' "$1" >&2 +} + +emergency_shell() { + err "Dropping to emergency shell. Type 'exit' to reboot." + sulogin -p + printf '%s\n' "Rebooting..." + umount -a -r + mount -o remount,ro / + reboot -f + exit 0 +} + +printf '%s\n' "rawnix is starting..." + +msg "Mounting /proc..." +mountpoint -q /proc || mount -t proc proc /proc + +msg "Mounting /sys..." +mountpoint -q /sys || mount -t sysfs sysfs /sys + +msg "Mounting /run..." +mountpoint -q /run || mount -t tmpfs -o mode=0755,nosuid,nodev tmpfs /run + +msg "Mounting /dev..." +if ! mountpoint -q /dev; then + mount -t devtmpfs -o mode=0755,nosuid devtmpfs /dev +else + mount -o remount,mode=0755,nosuid devtmpfs /dev +fi + +msg "Mounting /dev/pts..." +mkdir -m 755 -p /dev/pts +mountpoint -q /dev/pts || mount -t devpts -o gid=tty,mode=0620,noexec,nosuid devpts /dev/pts + +msg "Mounting /dev/shm..." +mkdir -m 1777 -p /dev/shm +mountpoint -q /dev/shm || mount -t tmpfs -o mode=1777,nosuid,nodev tmpfs /dev/shm + +msg "Mounting cgroups v2..." +if ! mountpoint -q /sys/fs/cgroup; then + mount -t cgroup2 none /sys/fs/cgroup 2>/dev/null || + err "cgroup2 mount failed - containers will not work" +fi + +# Bootstrap udevd for coldplug; sv/udevd takes over in stage 2 +msg "Starting udevd..." +if udevd --daemon 2>/dev/null; then + msg "Triggering udev coldplug..." + udevadm trigger --type=subsystems --action=add + udevadm trigger --type=devices --action=add + + msg "Waiting for udev to settle..." + udevadm settle --timeout=30 || err "Timeout waiting for udev events" +else + err "udevd not available - continuing without hotplug" +fi + +msg "Bringing up loopback..." +ip addr add 127.0.0.1/8 dev lo 2>/dev/null +ip link set lo up 2>/dev/null + +# LUKS volumes. The root volume is not here -- the initramfs opened it +# before this script existed. These are the extras: /home, data disks. +# +# The file is read on fd 3, not stdin. With `done < /etc/crypttab` the +# passphrase prompt for a keyless entry reads the *next line of the +# crypttab* instead of the console: the volume fails to open with no +# indication why, and the line it ate is never processed. +if command -v cryptsetup >/dev/null 2>&1 && [ -r /etc/crypttab ]; then + msg "Opening LUKS volumes..." + while read -r name device key opts <&3; do + case "$name" in ''|\#*) continue ;; esac + case ",$opts," in *,noauto,*) continue ;; esac + [ -n "$device" ] || { err "crypttab: $name has no device"; continue; } + [ -e "/dev/mapper/$name" ] && continue + + case "$device" in + UUID=*|PARTUUID=*|LABEL=*) + _d=$(blkid -t "$device" -o device 2>/dev/null | head -1) + [ -n "$_d" ] || { err "crypttab: $name: no device for $device"; continue; } + device=$_d ;; + esac + + case "$key" in + ''|none|-) cryptsetup open "$device" "$name" ;; + *) cryptsetup open --key-file "$key" "$device" "$name" ;; + esac || err "Failed to open LUKS volume: $name" + done 3< /etc/crypttab +fi + +msg "Remounting / read-only..." +mount -o remount,ro / + +if [ -f /forcefsck ]; then + msg "Forced filesystem check..." + FORCEFSCK="-f" +fi + +msg "Checking filesystems..." +fsck $FORCEFSCK -A -T -C -a 2>/dev/null +if [ $? -gt 1 ]; then + err "Filesystem check failed!" + err "Please repair manually. Root is mounted read-only." + err "To remount read-write: mount -n -o remount,rw /" + emergency_shell +fi + +msg "Remounting / read-write..." +mount -o remount,rw / + +msg "Seeding urandom..." +if [ -f /var/lib/random/seed ]; then + cat /var/lib/random/seed >/dev/urandom + rm -f /var/lib/random/seed +fi + +msg "Setting shared mount propagation..." +mount --make-rshared / + +msg "Activating swap..." +swapon -a 2>/dev/null + +msg "Mounting local filesystems..." +mount -a -O no_netdev 2>/dev/null || emergency_shell + +mkdir -m 0755 -p /run/user +mkdir -m 1777 -p /run/lock +: >/run/utmp + +rm -rf /forcefsck /fastboot /etc/nologin /etc/shutdownpid 2>/dev/null +rm -rf /tmp/* /tmp/.* 2>/dev/null + +if [ -x /etc/rc.modules ]; then + msg "Loading kernel modules..." + /etc/rc.modules +fi + +if [ -f /etc/sysctl.conf ]; then + msg "Setting kernel parameters..." + sysctl -p >/dev/null 2>&1 +fi + +if [ -f /etc/hostname ]; then + msg "Setting hostname: $(cat /etc/hostname)" + hostname "$(cat /etc/hostname)" +fi + +hwclock --hctosys 2>/dev/null + +[ -x /etc/rc.local ] && /etc/rc.local + +touch /etc/runit/stopit +chmod 100 /etc/runit/stopit +touch /etc/runit/reboot +chmod 100 /etc/runit/reboot + +dmesg > /var/log/boot.log 2>/dev/null + +msg "Boot complete." +exit 0 |