From 7395bc29e6d762619fb5a45f76c7cdf8d92d4689 Mon Sep 17 00:00:00 2001
From: "Alex Xu (Hello71)" <alex_y_xu@yahoo.ca>
Date: Sun, 16 Feb 2020 22:21:11 -0500
Subject: update

---
 init | 57 ++++++++++++++++++++++-----------------------------------
 1 file changed, 22 insertions(+), 35 deletions(-)

(limited to 'init')

diff --git a/init b/init
index e8041ef..8df2dda 100644
--- a/init
+++ b/init
@@ -1,46 +1,33 @@
 #!/bin/sh
 
-trap 'kill $dropbear_pid; exec sh' EXIT
+trap 'exec sh' EXIT
 
-case "$PATH" in
-    */*) ;;
-    *) export PATH="/usr/sbin:/usr/bin:/sbin:/bin" ;;
-esac
+export PATH="/usr/sbin:/usr/bin:/sbin:/bin"
 
 mount -t proc proc /proc
 mount -t devtmpfs devtmpfs /dev
+# use -p to avoid "directory exists" error
 mkdir -p /dev/pts
+# /dev/pts for dropbear
 mount -t devpts devpts /dev/pts
-mount -t sysfs sysfs /sys
 
 (
 ip link set eth0 up
-ip addr add 192.168.0.7/24 dev eth0
-exec dropbear -F -s -p 2222 -K 30
-) &
-dropbear_pid=$!
-
-enc_root=$(findfs UUID=26748575-d7a7-418b-8f68-21be7c937500) || exit
-cryptsetup open --tries 65535 --allow-discards "$enc_root" root || [ -e /dev/mapper/root ] || exit
-
-kill $dropbear_pid
-dropbear_pid=
-
-e2fsck -C 0 -E inode_count_fullmap -p /dev/mapper/root
-e2fsck_r=$?
-if [ $(( e2fsck_r & 2 )) = 2 ]; then
-    reboot -f
-fi
-case "$e2fsck_r" in
-    0|1) ;;
-    *) exit
-esac
-
-mount -o nodev,commit=30 /dev/mapper/root /mnt || exit
-cd /mnt
-umount /dev/pts
-mount --move /dev dev
-mount --move /proc proc
-mount --move /sys sys
-
-exec switch_root /mnt /usr/lib/systemd/systemd
+udhcpc -i eth0
+# -p 2222 to avoid host key clash
+dropbear -p 2222
+) >/dev/null 2>&1 &
+
+root=$(findfs UUID=26748575-d7a7-418b-8f68-21be7c937500) || exit
+cryptsetup open --tries 65535 --allow-discards "$root" root
+# in case of /sbin/unlock
+[ -e /dev/mapper/root ] || exit
+e2fsck -C 0 -E inode_count_fullmap -p /dev/mapper/root || exit
+mount -o nodev /dev/mapper/root /mnt || exit
+
+kill -9 -1
+ip link set eth0 down
+
+cd /mnt || exit
+umount -n /dev/pts /dev /proc
+exec switch_root . /usr/lib/systemd/systemd
-- 
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