Here is a patch that adds support for RAID6 and RAID10 to the debian installer.
-- _________________________ Ryan Niebur [EMAIL PROTECTED]
Index: kernel/kernel-wedge/modules/md-modules
===================================================================
--- kernel/kernel-wedge/modules/md-modules (revision 54408)
+++ kernel/kernel-wedge/modules/md-modules (working copy)
@@ -8,6 +8,7 @@
raid1
raid5 ?
raid456 ?
+raid10
xor
dm-mirror ?
dm-snapshot ?
Index: mdcfg/debian/mdcfg-utils.templates
===================================================================
--- mdcfg/debian/mdcfg-utils.templates (revision 54408)
+++ mdcfg/debian/mdcfg-utils.templates (working copy)
@@ -47,7 +47,7 @@
Type: select
# :sl3:
# flag:translate:4
-__Choices: RAID0, RAID1, RAID5, Cancel
+__Choices: RAID0, RAID1, RAID5, RAID6, RAID10, Cancel
# :sl3:
_Description: Multidisk device type:
Please choose the type of the multidisk device to be created.
@@ -107,6 +107,80 @@
devices, the remaining partitions will be added to the array as "missing".
You will be able to add them later to the array.
+Template: mdcfg/raid6devcount
+Type: string
+# :sl3:
+_Description: Number of active devices for the RAID6 array:
+ The RAID6 array will consist of both active and spare partitions. The active
+ partitions are those used, while the spare devices will only be used if one or
+ more of the active devices fail. A minimum of three active devices is
+ required.
+ .
+ NOTE: this setting cannot be changed later.
+
+Template: mdcfg/raid6sparecount
+Type: string
+# :sl3:
+_Description: Number of spare devices for the RAID6 array:
+
+Template: mdcfg/raid6sparedevs
+Type: multiselect
+Choices: ${PARTITIONS}
+# :sl3:
+_Description: Spare devices for the RAID6 multidisk device:
+ You have chosen to create an RAID6 array with ${COUNT} spare devices.
+ .
+ Please choose which partitions will be used as spare devices.
+ You may choose up to ${COUNT} partitions. If you choose less than ${COUNT}
+ devices, the remaining partitions will be added to the array as "missing".
+ You will be able to add them later to the array.
+
+Template: mdcfg/raid10layout
+Type: string
+# :sl3:
+_Description: Layout of the RAID10 multidisk device:
+ The layout must be n, o, or f followed by a number.
+ .
+ The number is the number of copies of each chunk.
+ It has to be equal to or smaller than the number of active devices.
+ .
+ The letter is the arrangement of the copies.
+ n - near copies: Multiple copies of one data block are at similar offsets in
different devices.
+ f - far copies: Multiple copies have very different offsets
+ o - offset copies: Rather than the chunks being duplicated within a stripe,
whole stripes are duplicated but are rotated by one device so duplicate blocks
are on different devices.
+ .
+ The default setting is n2.
+ .
+ NOTE: this setting cannot be changed later.
+
+Template: mdcfg/raid10devcount
+Type: string
+# :sl3:
+_Description: Number of active devices for the RAID10 array:
+ The RAID10 array will consist of both active and spare partitions. The active
+ partitions are those used, while the spare devices will only be used if one or
+ more of the active devices fail. A minimum of four active devices is
+ required.
+ .
+ NOTE: this setting cannot be changed later.
+
+Template: mdcfg/raid10sparecount
+Type: string
+# :sl3:
+_Description: Number of spare devices for the RAID10 array:
+
+Template: mdcfg/raid10sparedevs
+Type: multiselect
+Choices: ${PARTITIONS}
+# :sl3:
+_Description: Spare devices for the RAID10 multidisk device:
+ You have chosen to create an RAID10 array with ${COUNT} spare devices.
+ .
+ Please choose which partitions will be used as spare devices.
+ You may choose up to ${COUNT} partitions. If you choose less than ${COUNT}
+ devices, the remaining partitions will be added to the array as "missing".
+ You will be able to add them later to the array.
+
Template: mdcfg/raid0devs
Type: multiselect
Choices: ${PARTITIONS}
@@ -135,6 +209,26 @@
Please choose which partitions are active devices.
You must select exactly ${COUNT} partitions.
+Template: mdcfg/raid6devs
+Type: multiselect
+Choices: ${PARTITIONS}
+# :sl3:
+_Description: Active devices for the RAID6 multidisk device:
+ You have chosen to create an RAID6 array with ${COUNT} active devices.
+ .
+ Please choose which partitions are active devices.
+ You must select exactly ${COUNT} partitions.
+
+Template: mdcfg/raid10devs
+Type: multiselect
+Choices: ${PARTITIONS}
+# :sl3:
+_Description: Active devices for the RAID10 multidisk device:
+ You have chosen to create an RAID10 array with ${COUNT} active devices.
+ .
+ Please choose which partitions are active devices.
+ You must select exactly ${COUNT} partitions.
+
Template: mdcfg/deletemenu
Type: select
# :sl3:
Index: mdcfg/mdcfg.sh
===================================================================
--- mdcfg/mdcfg.sh (revision 54408)
+++ mdcfg/mdcfg.sh (working copy)
@@ -102,70 +102,10 @@
return
fi
- case "$RAID_SEL" in
- RAID5)
- md_create_raid5 ;;
- RAID1)
- md_create_raid1 ;;
- RAID0)
- md_create_raid0 ;;
- esac
+ md_create_array "$RAID_SEL"
fi
}
-# This will set PARTITIONS and NUM_PART global variables
-get_partitions() {
- PARTITIONS=""
-
- # Get a list of RAID partitions. This only works if there is no
- # filesystem on the partitions, which is fine by us.
- RAW_PARTITIONS=$(/usr/lib/partconf/find-partitions --ignore-fstype
2>/dev/null | \
- grep "[[:space:]]RAID[[:space:]]" | cut -f1)
-
- # Convert it into a proper list form for a select question
- # (comma seperated)
- NUM_PART=0
- for i in $RAW_PARTITIONS; do
- DEV=$(echo $i | sed -e "s/\/dev\///")
- REALDEV=$(mapdevfs "$i")
- MAPPEDDEV=$(echo "$REALDEV" | sed -e "s/\/dev\///")
-
- if grep -Eq "($DEV|$MAPPEDDEV)" /proc/mdstat; then
- continue
- fi
-
- PARTITIONS="${PARTITIONS:+$PARTITIONS, }$REALDEV"
- NUM_PART=$(($NUM_PART + 1))
- done
-
- if [ -z "$PARTITIONS" ]; then
- db_input critical mdcfg/noparts
- db_go
- return 1
- fi
- return 0
-}
-
-prune_partitions() {
- CHOSEN="$1"
- OLDIFS="$IFS"
- IFS=,
- NEW_PARTITIONS=""
- for i in $PARTITIONS; do
- found=0
- for j in $CHOSEN; do
- if [ "$i" = "$j" ]; then
- found=1
- fi
- done
- if [ $found -eq 0 ]; then
- NEW_PARTITIONS="${NEW_PARTITIONS:+$NEW_PARTITIONS,}$i"
- fi
- done
- IFS=$OLDIFS
- PARTITIONS=$NEW_PARTITIONS
-}
-
md_create_raid0() {
db_subst mdcfg/raid0devs PARTITIONS "$PARTITIONS"
db_set mdcfg/raid0devs ""
@@ -199,66 +139,104 @@
-n $SELECTED $RAID_DEVICES
}
-md_create_raid1() {
+md_create_array(){
OK=0
- db_set mdcfg/raid1devcount 2
+ case "$1" in
+ RAID10)
+ MIN_SIZE=2 ;;
+ RAID6)
+ MIN_SIZE=4 ;;
+ RAID5)
+ MIN_SIZE=3 ;;
+ RAID1)
+ MIN_SIZE=2 ;;
+ RAID0)
+ md_create_raid0; return ;;
+ *)
+ return ;;
+ esac
+ LEVEL=$(echo "$1" | sed s/RAID//)
+
+ DEFAULT="$MIN_SIZE"
+ if [ "$LEVEL" = "10" ]; then
+ DEFAULT=4
+ fi
+
+ db_set mdcfg/raid${LEVEL}devcount "$DEFAULT"
+
# Get the count of active devices
while [ $OK -eq 0 ]; do
- db_input critical mdcfg/raid1devcount
+ db_input critical mdcfg/raid${LEVEL}devcount
db_go
if [ $? -eq 30 ]; then
return
fi
# Figure out, if the user entered a number
- db_get mdcfg/raid1devcount
+ db_get mdcfg/raid${LEVEL}devcount
RET=$(echo $RET | sed -e "s/[[:space:]]//g")
if [ "$RET" ]; then
let "OK=${RET}>0 && ${RET}<99"
fi
done
- db_set mdcfg/raid1sparecount "0"
+
+ db_set mdcfg/raid${LEVEL}sparecount "0"
OK=0
# Same procedure as above, but get the number of spare partitions
# this time.
# TODO: Make a general function for this kind of stuff
while [ $OK -eq 0 ]; do
- db_input critical mdcfg/raid1sparecount
+ db_input critical mdcfg/raid${LEVEL}sparecount
db_go
if [ $? -eq 30 ]; then
return
fi
- db_get mdcfg/raid1sparecount
+ db_get mdcfg/raid${LEVEL}sparecount
RET=$(echo $RET | sed -e "s/[[:space:]]//g")
if [ "$RET" ]; then
let "OK=${RET}>=0 && ${RET}<99"
fi
done
- db_get mdcfg/raid1devcount
+ db_get mdcfg/raid${LEVEL}devcount
DEV_COUNT="$RET"
- db_get mdcfg/raid1sparecount
+ if [ "$LEVEL" -ne "1" ]; then
+ if [ $DEV_COUNT -lt $MIN_SIZE ]; then
+ DEV_COUNT=$MIN_SIZE # Minimum number for the selected
RAID level
+ fi
+ fi
+ db_get mdcfg/raid${LEVEL}sparecount
SPARE_COUNT="$RET"
REQUIRED=$(($DEV_COUNT + $SPARE_COUNT))
+ if [ "$LEVEL" -ne "1" ]; then
+ if [ $REQUIRED -gt $NUM_PART ]; then
+ db_subst mdcfg/notenoughparts NUM_PART "$NUM_PART"
+ db_subst mdcfg/notenoughparts REQUIRED "$REQUIRED"
+ db_input critical mdcfg/notenoughparts
+ db_go mdcfg/notenoughparts
+ return
+ fi
+ fi
- db_set mdcfg/raid1devs ""
+ db_set mdcfg/raid${LEVEL}devs ""
SELECTED=0
- # Loop until at least one device has been selected
- until [ $SELECTED -gt 0 ] && [ $SELECTED -le $DEV_COUNT ]; do
- db_subst mdcfg/raid1devs COUNT "$DEV_COUNT"
- db_subst mdcfg/raid1devs PARTITIONS "$PARTITIONS"
- db_input critical mdcfg/raid1devs
+ # Loop until the correct number of active devices has been selected for
RAID 5 and 10
+ # Loop until at least one device has been selected for RAID 1
+ until ([ "$LEVEL" -ne "1" ] && [ $SELECTED -eq $DEV_COUNT ]) || ([
"$LEVEL" -eq "1" ] && [ $SELECTED -gt 0 ] && [ $SELECTED -le $DEV_COUNT ]); do
+ db_subst mdcfg/raid${LEVEL}devs COUNT "$DEV_COUNT"
+ db_subst mdcfg/raid${LEVEL}devs PARTITIONS "$PARTITIONS"
+ db_input critical mdcfg/raid${LEVEL}devs
db_go
if [ $? -eq 30 ]; then
return
fi
- db_get mdcfg/raid1devs
+ db_get mdcfg/raid${LEVEL}devs
SELECTED=0
for i in $RET; do
DEVICE=$(echo $i | sed -e "s/,//")
@@ -266,19 +244,21 @@
done
done
- # Add "missing" for as many devices as weren't selected
- MISSING_DEVICES=""
- while [ $SELECTED -lt $DEV_COUNT ]; do
- MISSING_DEVICES="$MISSING_DEVICES missing"
- let SELECTED++
- done
+ if [ "$LEVEL" -eq "1" ]; then
+ # Add "missing" for as many devices as weren't selected
+ MISSING_DEVICES=""
+ while [ $SELECTED -lt $DEV_COUNT ]; do
+ MISSING_DEVICES="$MISSING_DEVICES missing"
+ let SELECTED++
+ done
+ fi
- # Remove partitions selected in raid1devs from the PARTITION list
- db_get mdcfg/raid1devs
+ # Remove partitions selected in raid${LEVEL}devs from the PARTITION list
+ db_get mdcfg/raid${LEVEL}devs
prune_partitions "$RET"
- db_set mdcfg/raid1sparedevs ""
+ db_set mdcfg/raid${LEVEL}sparedevs ""
SELECTED=0
if [ $SPARE_COUNT -gt 0 ]; then
FIRST=1
@@ -286,15 +266,15 @@
# That means any number less than or equal to the spare count.
while [ $SELECTED -gt $SPARE_COUNT ] || [ $FIRST -eq 1 ]; do
FIRST=0
- db_subst mdcfg/raid1sparedevs COUNT "$SPARE_COUNT"
- db_subst mdcfg/raid1sparedevs PARTITIONS "$PARTITIONS"
- db_input critical mdcfg/raid1sparedevs
+ db_subst mdcfg/raid${LEVEL}sparedevs COUNT
"$SPARE_COUNT"
+ db_subst mdcfg/raid${LEVEL}sparedevs PARTITIONS
"$PARTITIONS"
+ db_input critical mdcfg/raid${LEVEL}sparedevs
db_go
if [ $? -eq 30 ]; then
return
fi
- db_get mdcfg/raid1sparedevs
+ db_get mdcfg/raid${LEVEL}sparedevs
SELECTED=0
for i in $RET; do
DEVICE=$(echo $i | sed -e "s/,//")
@@ -303,13 +283,29 @@
done
fi
+ if [ "$LEVEL" -eq "10" ]; then
+ db_set mdcfg/raid10layout "n2"
+ db_input low mdcfg/raid10layout
+ db_go
+ if [ $? -eq 30 ]; then return; fi
+ db_get mdcfg/raid10layout
+ LAYOUT="--layout=$RET"
+ until echo $LAYOUT | grep -Eq "^--layout=[nfo][0-9]{1,2}$" && [
"$(echo $LAYOUT | sed s/--layout=.//)" -le "$DEV_COUNT" ]; do
+ db_input critical mdcfg/raid10layout
+ db_go
+ if [ $? -eq 30 ]; then return; fi
+ db_get mdcfg/raid10layout
+ LAYOUT="--layout=$RET"
+ done
+ fi
+
# The number of spares the user has selected
NAMED_SPARES=$SELECTED
- db_get mdcfg/raid1devs
+ db_get mdcfg/raid${LEVEL}devs
RAID_DEVICES=$(echo $RET | sed -e "s/,//g")
- db_get mdcfg/raid1sparedevs
+ db_get mdcfg/raid${LEVEL}sparedevs
SPARE_DEVICES=$(echo $RET | sed -e "s/,//g")
MISSING_SPARES=""
@@ -333,151 +329,62 @@
logger -t mdcfg "Raid devices count: $DEV_COUNT"
logger -t mdcfg "Spare devices count: $SPARE_COUNT"
log-output -t mdcfg \
- mdadm --create /dev/md$MD_NUM --auto=yes --force -R -l raid1 \
- -n $DEV_COUNT -x $SPARE_COUNT $RAID_DEVICES
$MISSING_DEVICES \
- $SPARE_DEVICES $MISSING_SPARES
+ mdadm --create /dev/md$MD_NUM --auto=yes --force -R -l
raid${LEVEL} $LAYOUT \
+ -n $DEV_COUNT -x $SPARE_COUNT $RAID_DEVICES \
+ $MISSING_DEVICES $SPARE_DEVICES $MISSING_SPARES
}
-md_create_raid5() {
- OK=0
+# This will set PARTITIONS and NUM_PART global variables
+get_partitions() {
+ PARTITIONS=""
- db_set mdcfg/raid5devcount "3"
+ # Get a list of RAID partitions. This only works if there is no
+ # filesystem on the partitions, which is fine by us.
+ RAW_PARTITIONS=$(/usr/lib/partconf/find-partitions --ignore-fstype
2>/dev/null | \
+ grep "[[:space:]]RAID[[:space:]]" | cut -f1)
- # Get the count of active devices
- while [ $OK -eq 0 ]; do
- db_input critical mdcfg/raid5devcount
- db_go
- if [ $? -eq 30 ]; then
- return
- fi
+ # Convert it into a proper list form for a select question
+ # (comma seperated)
+ NUM_PART=0
+ for i in $RAW_PARTITIONS; do
+ DEV=$(echo $i | sed -e "s/\/dev\///")
+ REALDEV=$(mapdevfs "$i")
+ MAPPEDDEV=$(echo "$REALDEV" | sed -e "s/\/dev\///")
- # Figure out, if the user entered a number
- db_get mdcfg/raid5devcount
- RET=$(echo $RET | sed -e "s/[[:space:]]//g")
- if [ "$RET" ]; then
- let "OK=${RET}>0 && ${RET}<99"
+ if grep -Eq "($DEV|$MAPPEDDEV)" /proc/mdstat; then
+ continue
fi
- done
- db_set mdcfg/raid5sparecount "0"
- OK=0
-
- # Same procedure as above, but get the number of spare partitions
- # this time.
- # TODO: Make a general function for this kind of stuff
- while [ $OK -eq 0 ]; do
- db_input critical mdcfg/raid5sparecount
- db_go
- if [ $? -eq 30 ]; then
- return
- fi
- db_get mdcfg/raid5sparecount
- RET=$(echo $RET | sed -e "s/[[:space:]]//g")
- if [ "$RET" ]; then
- let "OK=${RET}>=0 && ${RET}<99"
- fi
+ PARTITIONS="${PARTITIONS:+$PARTITIONS, }$REALDEV"
+ NUM_PART=$(($NUM_PART + 1))
done
- db_get mdcfg/raid5devcount
- DEV_COUNT="$RET"
- if [ $DEV_COUNT -lt 3 ]; then
- DEV_COUNT=3 # Minimum number for RAID5
+ if [ -z "$PARTITIONS" ]; then
+ db_input critical mdcfg/noparts
+ db_go
+ return 1
fi
- db_get mdcfg/raid5sparecount
- SPARE_COUNT="$RET"
- REQUIRED=$(($DEV_COUNT + $SPARE_COUNT))
- if [ $REQUIRED -gt $NUM_PART ]; then
- db_subst mdcfg/notenoughparts NUM_PART "$NUM_PART"
- db_subst mdcfg/notenoughparts REQUIRED "$REQUIRED"
- db_input critical mdcfg/notenoughparts
- db_go mdcfg/notenoughparts
- return
- fi
+ return 0
+}
- db_set mdcfg/raid5devs ""
- SELECTED=0
-
- # Loop until the correct number of active devices has been selected
- while [ $SELECTED -ne $DEV_COUNT ]; do
- db_subst mdcfg/raid5devs COUNT "$DEV_COUNT"
- db_subst mdcfg/raid5devs PARTITIONS "$PARTITIONS"
- db_input critical mdcfg/raid5devs
- db_go
- if [ $? -eq 30 ]; then
- return
- fi
-
- db_get mdcfg/raid5devs
- SELECTED=0
- for i in $RET; do
- DEVICE=$(echo $i | sed -e "s/,//")
- let SELECTED++
- done
- done
-
- # Remove partitions selected in raid5devs from the PARTITION list
- db_get mdcfg/raid5devs
-
- prune_partitions "$RET"
-
- db_set mdcfg/raid5sparedevs ""
- SELECTED=0
- if [ $SPARE_COUNT -gt 0 ]; then
- FIRST=1
- # Loop until the correct number of devices has been selected.
- # That means any number less than or equal to the spare count.
- while [ $SELECTED -gt $SPARE_COUNT ] || [ $FIRST -eq 1 ]; do
- FIRST=0
- db_subst mdcfg/raid5sparedevs COUNT "$SPARE_COUNT"
- db_subst mdcfg/raid5sparedevs PARTITIONS "$PARTITIONS"
- db_input critical mdcfg/raid5sparedevs
- db_go
- if [ $? -eq 30 ]; then
- return
+prune_partitions() {
+ CHOSEN="$1"
+ OLDIFS="$IFS"
+ IFS=,
+ NEW_PARTITIONS=""
+ for i in $PARTITIONS; do
+ found=0
+ for j in $CHOSEN; do
+ if [ "$i" = "$j" ]; then
+ found=1
fi
-
- db_get mdcfg/raid5sparedevs
- SELECTED=0
- for i in $RET; do
- DEVICE=$(echo $i | sed -e "s/,//")
- let SELECTED++
- done
done
- fi
-
- # The number of spares the user has selected
- NAMED_SPARES=$SELECTED
-
- db_get mdcfg/raid5devs
- RAID_DEVICES=$(echo $RET | sed -e "s/,//g")
-
- db_get mdcfg/raid5sparedevs
- SPARE_DEVICES=$(echo $RET | sed -e "s/,//g")
-
- MISSING_SPARES=""
-
- COUNT=$NAMED_SPARES
- while [ $COUNT -lt $SPARE_COUNT ]; do
- MISSING_SPARES="$MISSING_SPARES missing"
- let COUNT++
+ if [ $found -eq 0 ]; then
+ NEW_PARTITIONS="${NEW_PARTITIONS:+$NEW_PARTITIONS,}$i"
+ fi
done
-
- # Find the next available md-number
- MD_NUM=$(grep ^md /proc/mdstat | \
- sed -e 's/^md\(.*\) : active .*/\1/' | sort | tail -n1)
- if [ -z "$MD_NUM" ]; then
- MD_NUM=0
- else
- let MD_NUM++
- fi
-
- logger -t mdcfg "Selected spare count: $NAMED_SPARES"
- logger -t mdcfg "Raid devices count: $DEV_COUNT"
- logger -t mdcfg "Spare devices count: $SPARE_COUNT"
- log-output -t mdcfg \
- mdadm --create /dev/md$MD_NUM --auto=yes --force -R -l raid5 \
- -n $DEV_COUNT -x $SPARE_COUNT $RAID_DEVICES \
- $SPARE_DEVICES $MISSING_SPARES
+ IFS=$OLDIFS
+ PARTITIONS=$NEW_PARTITIONS
}
md_mainmenu() {
@@ -503,11 +410,12 @@
### Main of script ###
# Try to load the necesarry modules.
-# Supported schemes: RAID 0, RAID 1, RAID 5
+# Supported schemes: RAID 0, RAID 1, RAID 5, RAID 6, RAID 10
depmod -a >/dev/null 2>&1
modprobe md >/dev/null 2>&1 || modprobe md-mod >/dev/null 2>&1
modprobe raid0 >/dev/null 2>&1
modprobe raid1 >/dev/null 2>&1
+modprobe raid10 >/dev/null 2>&1
# kernels >=2.6.18 have raid456
modprobe raid456 >/dev/null 2>&1 || modprobe raid5 >/dev/null 2>&1
Index: partman/partman-auto-raid/auto-raidcfg
===================================================================
--- partman/partman-auto-raid/auto-raidcfg (revision 54408)
+++ partman/partman-auto-raid/auto-raidcfg (working copy)
@@ -14,6 +14,12 @@
exit 9
fi
+ if [ "$DEV_COUNT" -lt 4 ] && ([ $RAID_TYPE = "10" ] || [ $RAID_TYPE =
"6" ]); then
+ db_input critical partman-auto-raid/notenoughparts
+ db_go partman-auto-raid/notenoughparts
+ exit 9
+ fi
+
SPARE_COUNT="$3"
REQUIRED=$(($DEV_COUNT + $SPARE_COUNT))
@@ -82,13 +88,14 @@
}
# Try to load the necessary modules.
-# Supported schemes: RAID 0, RAID 1, RAID 5
+# Supported schemes: RAID 0, RAID 1, RAID 5, RAID 6, RAID 10
depmod -a 1>/dev/null 2>&1
modprobe md 1>/dev/null 2>&1 || modprobe md-mod 1>/dev/null 2>&1
modprobe raid0 >/dev/null 2>&1
modprobe raid1 1>/dev/null 2>&1
# kernels >=2.6.18 have raid456
modprobe raid456 >/dev/null 2>&1 || modprobe raid5 >/dev/null 2>&1
+modprobe raid10 >/dev/null 2>&1
mkdir -p /dev/md
# Make sure that we have md-support
Index: partman/partman-base/lib/base.sh
===================================================================
--- partman/partman-base/lib/base.sh (revision 54408)
+++ partman/partman-base/lib/base.sh (working copy)
@@ -728,7 +728,7 @@
;;
/dev/md*|/dev/md/*)
device=`echo "$1" | sed -e "s/.*md\/\?\(.*\)/\1/"`
- type=`grep "^md${device}[ :]" /proc/mdstat | sed -e "s/^.* : active
raid\([[:alnum:]]\).*/\1/"`
+ type=`grep "^md${device}[ :]" /proc/mdstat | sed -e "s/^.* : active
raid\([[:alnum:]]\{,2\}\).*/\1/"`
db_metaget partman/text/raid_device description
printf "$RET" ${type} ${device}
;;
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