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Current File : //proc/thread-self/root/usr/share/initramfs-tools/hooks/mdadm

#!/bin/sh
#
# Copyright © 2006-2008 Martin F. Krafft <madduck@debian.org>,
#             2012 Michael Tokarev <mjt@tls.msk.ru>
# based on the scripts in the initramfs-tools package.
# released under the terms of the Artistic Licence.
#
set -eu

PREREQ="udev"
prereqs()
{
    echo "$PREREQ"
}

case "${1:-}" in
  prereqs)
    prereqs
    exit 0
    ;;
esac

is_true()
{
  case "${1:-}" in
    [Yy]es|[Yy]|1|[Tt]rue|[Tt]) return 0;;
    *) return 1;;
  esac
}

write()
{
  local PREFIX; PREFIX=$1; shift
  echo "${PREFIX}: mdadm: $@" >&2
}

info()
{
  is_true ${VERBOSE:-false} && write I "$@" || :
}

warn()
{
  write W "$@"
}

. /usr/share/initramfs-tools/hook-functions

# copy the binary as early as possible
copy_exec /sbin/mdadm /sbin
copy_exec /sbin/mdmon /sbin

# Copy udev rules, which udev no longer does
for UDEV_RULE in 63-md-raid-arrays.rules 64-md-raid-assembly.rules; do
for rules_folder in /lib/udev/rules.d /etc/udev/rules.d; do
    if [ -f $rules_folder/$UDEV_RULE ]; then
	mkdir -p $DESTDIR$rules_folder
	cp $rules_folder/$UDEV_RULE $DESTDIR$rules_folder/$UDEV_RULE
    fi
done
done

# load raid modules in the initramfs
for module in linear multipath raid0 raid1 raid456 raid5 raid6 raid10; do
	force_load $module
done

# load efivars for Intel RST IMSM, see Bug#962844
force_load efivars || true

# copy the mdadm configuration
CONFIG=/etc/mdadm/mdadm.conf
ALTCONFIG=/etc/mdadm.conf
DESTMDADMCONF=$DESTDIR/etc/mdadm/mdadm.conf
[ ! -f $CONFIG ] && [ -f $ALTCONFIG ] && CONFIG=$ALTCONFIG || :
mkdir -p ${DESTDIR}/etc/mdadm

if [ ! -f $CONFIG ]; then
        # there is no configuration file, so let's create one
        if /usr/share/mdadm/mkconf generate $CONFIG; then
                # all is well
                cp -p $CONFIG $DESTMDADMCONF
                info "auto-generated the mdadm.conf configuration file."
        else
                # we failed to auto-generate, so let the emergency procedure take over
                warn "failed to auto-generate the mdadm.conf file."
                warn "please read /usr/share/doc/mdadm/README.upgrading-2.5.3.gz ."
        fi
else
	cp -p $CONFIG ${DESTDIR}/etc/mdadm
	sed -i '/^CREATE/s/^/#/' $DESTMDADMCONF
        if ! grep -q '^ARRAY' $CONFIG; then
                tmpfile="${DESTMDADMCONF}.tmp"
                if /usr/share/mdadm/mkconf > $tmpfile; then
                        cp -p $tmpfile $DESTMDADMCONF
                else
                        warn "failed to auto-generate temporary mdadm.conf file."
                fi
        else
                # make sure the configuration file knows about all running devices
                /sbin/mdadm --detail --scan | while read array device params; do
                        uuid=${params#*UUID=}; uuid=${uuid%% *}
                        if grep -qi "UUID=$uuid" $DESTMDADMCONF; then
                                info "$uuid $device added to the mdadm.conf in the initramfs"
                        fi
                done
        fi
fi

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