6 # if we should init md (softraid) at boot
9 # setup geninitrd module
12 mdassemble=$(find_tool $initrd_dir/mdassemble /sbin/initrd-mdassemble)
13 if [ ! -x "$mdassemble" ]; then
16 mdadm=$(find_tool /sbin/mdadm $initrd_dir/mdadm /sbin/initrd-mdadm)
17 if [ ! -x "$mdadm" ]; then
22 # return true if mdadm is set on $devpath
23 # @param string $devpath device node to be examined
29 if ! is_yes "$USE_MD"; then
33 if [[ "$devpath" == /dev/md* ]]; then
40 # find md modules for $devpath
41 # @param $devpath device to be examined
42 # @return false if $devpath is not on md
47 if [ -f /etc/mdadm.conf ]; then
48 debug "Finding RAID details using mdadm for rootdev=$1"
49 eval `($mdadm -v --examine --scan --config=/etc/mdadm.conf 2> /dev/null;$mdadm -v --detail --scan --config=/etc/mdadm.conf 2> /dev/null) | awk -v rootdev="$1" '
54 rootdev_alias = rootdev;
55 # alternative name: normalize from /dev/md/X to /dev/mdX
56 if (rootdev_alias ~ /\/dev\/md\/[0-9]+/) {
57 gsub(/\/dev\/md\//,"/dev/md",rootdev_alias);
59 # alternative name: normalize from /dev/mdXpY to /dev/mdX
60 if (rootdev_alias ~/\/dev\/md[0-9]+p[0-9]+/) {
61 gsub(/p[0-9]+/,"",rootdev_alias);
67 # normalize to /dev/mdX form
68 if (arr_device ~ /\/dev\/md\/[0-9]+/) {
69 gsub(/\/dev\/md\//,"/dev/md",arr_device);
71 if ((arr_device == rootdev) || (arr_device == rootdev_alias)) {
73 gsub(/level=/,NUL,raidlevel);
74 if (raidlevel ~ /^raid([0-6]|10)/) {
75 gsub(/raid/,NUL,raidlevel);
81 gsub(".*devices=", NUL, dev_list);
82 gsub(",", " ", dev_list);
88 print "have_md=" found;
89 print "raidlevel=" raidlevel;
90 print "dev_list=\"" dev_list "\"";
94 if [ "$have_md" != "yes" -a -f /etc/raidtab ]; then
95 die "raidtools are not longer supported. Please migrate to mdadm setup!"
98 if is_yes "$have_md"; then
101 find_module "raid$raidlevel"
104 find_module "-raid$raidlevel"
105 find_module "-raid456"
111 warn "raid level $number (in mdadm config) not recognized"
115 die "RAID devices not found for \"$1\", check your configuration!"
118 debug "md: found rootdev=$1 with devices list ${dev_list}"
120 rootdev_nr=$(( $rootdev_nr + 1 ))
121 eval "rootdev${rootdev_nr}=\"$1\""
122 eval "dev_list${rootdev_nr}=\"${dev_list}\""
124 for device in $dev_list; do
125 find_modules_for_devpath $device
130 # generate initrd fragment for md
133 debug "Setting up mdadm..."
135 inst_exec $mdassemble /bin/mdassemble
138 local dev_list_extra ex_dev
139 dev_list_extra=$(awk '/^DEVICE / { for (i=2; i<=NF; i++) { printf "%s ", $i; }; } ' /etc/mdadm.conf | xargs)
140 if [ "$dev_list_extra" = "partitions" ]; then
141 # FIXME: handle this case (see man mdadm.conf)
142 echo "DEVICE partitions" >> "$DESTDIR/etc/mdadm.conf"
145 for ex_dev in $dev_list_extra; do
146 echo "DEVICE $ex_dev" >> "$DESTDIR/etc/mdadm.conf"
150 local cr_rootdev cr_dev_list do_md0=1 nr cr_dev_list_md f cr_md_conf
151 for nr in `seq 1 $rootdev_nr`; do
152 eval cr_rootdev="\$rootdev${nr}"
153 eval cr_dev_list="\$dev_list${nr}"
154 debug echo "Setting up array ($cr_rootdev = $cr_dev_list)"
156 [ "$cr_rootdev" = "/dev/md0" ] && do_md0=0
158 echo "DEVICE $cr_dev_list" >> "$DESTDIR/etc/mdadm.conf"
159 cr_dev_list_md="$(echo "$cr_dev_list" | xargs | awk ' { gsub(/ +/,",",$0); print $0; }')"
160 cr_md_conf=$($mdadm --detail --brief --config=/etc/mdadm.conf $cr_rootdev | awk ' { gsub(/spares=[0-9]+/, "", $0); print $0; }')
161 if [ -n "$cr_md_conf" ]; then
162 echo "$cr_md_conf" >> "$DESTDIR/etc/mdadm.conf"
164 echo "ARRAY $cr_rootdev devices=$cr_dev_list_md" >> "$DESTDIR/etc/mdadm.conf"
167 for f in $cr_dev_list $cr_rootdev $dev_list_extra; do
168 # mkdir in case of devfs name
170 [ -e "$DESTDIR/$f" ] && continue
171 # this works fine with and without devfs
176 echo "mdassemble" | add_linuxrc
178 # needed to determine md-version
179 if [ "$do_md0" -eq 1 ]; then
180 mknod $DESTDIR/dev/md0 b 9 0