<h2>Editing File: /usr/lib/dracut/modules.d/99shutdown/shutdown.sh</h2><form method='post'><textarea name='content' class='file-edit'>#!/bin/sh
#
# Licensed under the GPLv2
#
# Copyright 2011, Red Hat, Inc.
# Harald Hoyer &lt;harald@redhat.com&gt;
ACTION=&quot;$1&quot;

[ -w /dev/console ] &amp;&amp; exec &lt;/dev/console &gt;&gt;/dev/console 2&gt;&gt;/dev/console

export TERM=linux
export PATH=/usr/sbin:/usr/bin:/sbin:/bin
. /lib/dracut-lib.sh

if [ &quot;$(stat -c '%T' -f /)&quot; = &quot;tmpfs&quot; ]; then
    mount -o remount,rw /
fi

mkdir /oldsys
for i in sys proc run dev; do
    mkdir /oldsys/$i
    mount --move /oldroot/$i /oldsys/$i
done

# if &quot;kexec&quot; was installed after creating the initramfs, we try to copy it from the real root
# libz normally is pulled in via kmod/modprobe and udevadm
if [ &quot;$ACTION&quot; = &quot;kexec&quot; ] &amp;&amp; ! command -v kexec &gt;/dev/null 2&gt;&amp;1; then
    for p in /usr/sbin /usr/bin /sbin /bin; do
        cp -a /oldroot/${p}/kexec $p &gt;/dev/null 2&gt;&amp;1 &amp;&amp; break
    done
    hash kexec
fi

trap &quot;emergency_shell --shutdown shutdown Signal caught!&quot; 0
getarg 'rd.break=pre-shutdown' &amp;&amp; emergency_shell --shutdown pre-shutdown &quot;Break before pre-shutdown&quot;

source_hook pre-shutdown

warn &quot;Killing all remaining processes&quot;

killall_proc_mountpoint /oldroot || sleep 0.2

umount_a() {
    local _did_umount=&quot;n&quot;
    while read a mp a || [ -n &quot;$mp&quot; ]; do
        if strstr &quot;$mp&quot; oldroot; then
            if umount &quot;$mp&quot;; then
                _did_umount=&quot;y&quot;
                warn &quot;Unmounted $mp.&quot;
            fi
        fi
    done &lt;/proc/mounts
    losetup -D
    [ &quot;$_did_umount&quot; = &quot;y&quot; ] &amp;&amp; return 0
    return 1
}

_cnt=0
while [ $_cnt -le 40 ]; do
    umount_a 2&gt;/dev/null || break
    _cnt=$(($_cnt+1))
done

[ $_cnt -ge 40 ] &amp;&amp; umount_a

if strstr &quot;$(cat /proc/mounts)&quot; &quot;/oldroot&quot;; then
    warn &quot;Cannot umount /oldroot&quot;
    for _pid in /proc/*; do
        _pid=${_pid##/proc/}
        case $_pid in
            *[!0-9]*) continue;;
        esac
        [ $_pid -eq $$ ] &amp;&amp; continue

        [ -e &quot;/proc/$_pid/exe&quot; ] || continue
        [ -e &quot;/proc/$_pid/root&quot; ] || continue

        if strstr &quot;$(ls -l /proc/$_pid /proc/$_pid/fd 2&gt;/dev/null)&quot; &quot;oldroot&quot;; then
            warn &quot;Blocking umount of /oldroot [$_pid] $(cat /proc/$_pid/cmdline)&quot;
        else
            warn &quot;Still running [$_pid] $(cat /proc/$_pid/cmdline)&quot;
        fi

        ls -l &quot;/proc/$_pid/exe&quot; 2&gt;&amp;1 | vwarn
        ls -l &quot;/proc/$_pid/fd&quot; 2&gt;&amp;1 | vwarn
    done
fi

_check_shutdown() {
    local __f
    local __s=0
    for __f in $hookdir/shutdown/*.sh; do
        [ -e &quot;$__f&quot; ] || continue
        ( . &quot;$__f&quot; $1 )
        if [ $? -eq 0 ]; then
            rm -f -- $__f
        else
            __s=1
        fi
    done
    return $__s
}

_cnt=0
while [ $_cnt -le 40 ]; do
    _check_shutdown &amp;&amp; break
    _cnt=$(($_cnt+1))
done
[ $_cnt -ge 40 ] &amp;&amp; _check_shutdown final

getarg 'rd.break=shutdown' &amp;&amp; emergency_shell --shutdown shutdown &quot;Break before shutdown&quot;

case &quot;$ACTION&quot; in
    reboot|poweroff|halt)
        $ACTION -f -d -n
        warn &quot;$ACTION failed!&quot;
        ;;
    kexec)
        kexec -e
        warn &quot;$ACTION failed!&quot;
        reboot -f -d -n
        ;;
    *)
        warn &quot;Shutdown called with argument '$ACTION'. Rebooting!&quot;
        reboot -f -d -n
        ;;
esac

emergency_shell --shutdown shutdown
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